Request for help - Safestrap upgrade for new ROMs - Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot

Hi all,
I've been reading a fair bit, but I'm still not quite certain what the best path is for me with my device.
Current state: I did the rollback from 4.5.2 to 13.3.2.8_user_328003120. I installed Safestrap 3.75 and GGOW's excellent Nexus v1.0.1.
Kindle ROM is sitting in STOCK slot, and Nexus 1.0.1 is in Slot 1. It is rooted. I have not installed the OTA block, but the device is in airplane mode.
I have no data that I'm interested in preserving.
What I'd like to do is get the device to a point where I can install GGOW's newer version of Nexus ROM, and/or the CM series of ROMs. The tablet is used primarily for gaming, and some of the newer games won't run on the older version of Nexus ROM anymore.
SO - it seems to me that I have to go to a newer version of Safestrap (v4) to make this happen. Is this so? If that is so, what's the correct upgrade/migration path to make this happen? Again - I'm not worried about losing all of my data, but I would like to avoid brick, and (ideally), it would be nice to have good recovery options for the future.
Thanks for any help you can provide me!

CanadaDave77 said:
Hi all,
I've been reading a fair bit, but I'm still not quite certain what the best path is for me with my device.
Current state: I did the rollback from 4.5.2 to 13.3.2.8_user_328003120. I installed Safestrap 3.75 and GGOW's excellent Nexus v1.0.1.
Kindle ROM is sitting in STOCK slot, and Nexus 1.0.1 is in Slot 1. It is rooted. I have not installed the OTA block, but the device is in airplane mode.
I have no data that I'm interested in preserving.
What I'd like to do is get the device to a point where I can install GGOW's newer version of Nexus ROM, and/or the CM series of ROMs. The tablet is used primarily for gaming, and some of the newer games won't run on the older version of Nexus ROM anymore.
SO - it seems to me that I have to go to a newer version of Safestrap (v4) to make this happen. Is this so? If that is so, what's the correct upgrade/migration path to make this happen? Again - I'm not worried about losing all of my data, but I would like to avoid brick, and (ideally), it would be nice to have good recovery options for the future.
Thanks for any help you can provide me!
Click to expand...
Click to collapse
You best (really only path) is to upgrade to 4.5.2, root (use Kingroot), install Safestrap v4 and then flash either Nexus v4 or CM11 to the STOCK slot (not a secondary slot as was recommended with Safestrap v3). This will overwrite FireOS but it can be restored from the backup you create or from a 'custom' build of 4.5.2 if you forget/loose the all important backup.
Safestrap v4 provides a modest improvement in recovery options - but it is not nearly as robust as 'native' TWRP or fastboot with an unlocked bootloader (neither are options for you). You can still brick your device with a simple mistake or by going 'off script'. Many folks have gained a false sense of confidence with Safestrap installed. Think of SS v4 as an enabler for CM11 or Nexus v4, not a recovery or multi-boot tool.
Note CM12 and SlimLP can NOT be flashed under Safestrap v4. Only the two KitKat roms referenced above (or a custom version of FireOS should you want to return to stock).
My suggestion is your read through the Safestrap v4 thread (300+ posts!) to expand your knowledge of the process and become familiar with individual procedures. Look for excellent posts from @Cl4ncy and other experienced contributors. When you are ready to take the plunge post a succinct outline of the steps you plan to follow. Any 'gotchas' will quickly be identified by a member of the community.

Got it - thanks.
I've been through about half of that thread so far. The process is a bit long, so I'd like to break it up into a few chunks if I could.
Here's what I'm thinking my "cookbook" would look like to start. Note that I don't have any data that I wish to preserve at all in either the 3.2.8 FireOS or the Nexus ROM 1.0.1. Also note that my current state is that I have 3.2.8 in the stock slot and the Nexus ROM in Slot 1.
1) Ensure I'm in airplane mode (which I am)
2) Download the 4.5.2 stock rom here and put it in the root /sdcard.
3) Boot up 3.2.8 from the stock slot, go into "check for updates" and it should appear there.
4) Allow the update to take effect.
5) Boot into the 4.5.2 OS, ensuring that airplane mode is still on.
6) Uninstall Safestrap 3.75 by going into the "settings" area and uninstalling the package.
7) Reboot - this will take me into 4.5.2 in a "clean" state.
I think the biggest question is the uninstallation of Safestrap. I'm feeling like I might be doing that in the wrong order?
My next steps (and the second chunk of the cookbook) would be to root 4.5.2 using Kingroot, install the new version of Safestrap, back up 4.5.2 to a file on my PC, move 4.5.2 to one of the other ROM slots and install the new Nexus ROM in the stock slot, but I want to make sure I'm taking this slowly so not to brick the device, so I don't want to tackle that until the cookbook is done.
I know it's not of a ton of value compared to the work you do here, Davey, but once I'm done, I'll post the tutorial for everyone who is in my situation in a "clean" format once this is all done and working well so that people have a good starting point. I know a lot of people did the 3.2.8 rollback for Nexus 1.0.1, so they may be in a similar state.
Excellent post here: http://forum.xda-developers.com/showpost.php?p=61531925&postcount=52
Does my process look correct so far?

CanadaDave77 said:
Got it - thanks.
I've been through about half of that thread so far. The process is a bit long, so I'd like to break it up into a few chunks if I could.
Here's what I'm thinking my "cookbook" would look like to start. Note that I don't have any data that I wish to preserve at all in either the 3.2.8 FireOS or the Nexus ROM 1.0.1. Also note that my current state is that I have 3.2.8 in the stock slot and the Nexus ROM in Slot 1.
1) Ensure I'm in airplane mode (which I am)
2) Download the 4.5.2 upgrade file from here and put it in the root /sdcard.
3) Boot up 3.2.8 from the stock slot, go into "check for updates" and it should appear there.
4) Allow the update to take effect.
5) Boot into the 4.5.2 OS, ensuring that airplane mode is still on.
6) Uninstall Safestrap 3.75 by going into the "settings" area and uninstalling the package.
7) Reboot - this will take me into 4.5.2 in a "clean" state.
My next steps (and the second chunk of the cookbook) would be to root 4.5.2 using Kingroot, install the new version of Safestrap, back up 4.5.2 to a file on my PC, move 4.5.2 to one of the other ROM slots and install the new Nexus ROM in the stock slot, but I want to make sure I'm taking this slowly so not to brick the device, so I don't want to tackle that until the cookbook is done.
I know it's not of a ton of value compared to the work you do here, Davey, but once I'm done, I'll post the tutorial for everyone who is in my situation in a "clean" format once this is all done and working well so that people have a good starting point. I know a lot of people did the 3.2.8 rollback for Nexus 1.0.1, so they may be in a similar state.
Does my process look correct so far?
Click to expand...
Click to collapse
Almost (good detail/research!). Thoughts:
- You should remove all secondary slots and uninstall Safestrap recovery prior to upgrading to FireOS v4. SS v3 will not function properly under FireOS v4; results are unpredictable. Be sure to boot into FireOS v3 at least once prior to cleaning house to insure it remains functional. Then return to SS recovery, backup one or both slots (as a precaution should something go wrong) as space permits and then delete all secondary slots. Reboot to FireOS and uninstall Safestrap recovery via the SS app. Then uninstall SS v3 itself (keep a copy of the apk if possible). The above reflect a very conservative path; you may choose to skip/consolidate some steps. Just be sure Safestrap v3 recovery is not installed prior to upgrading to FireOS v4.
- Do not preform any type of 'wipe' or 'factory reset' in Safestrap v3. Not needed and potentially dangerous.
- Download any apks you may need immediately after upgrading before going to 4.5.2. Suggest Kingroot, ES File Explorer and SuperSU (latter as a precaution). Leave all in internal storage (root of SDCARD) which should remain untouched during the upgrade.
- After upgrading to 4.5.2 (with airplane mode engaged) perform the following steps: enable USB debug (settings menu), root with Kingroot, block OTA, install Safestrap v4, boot into SS recovery, take a backup of the stock slot, reboot into 4.5.2 and copy backup directory/contents to your PC. I'll leave it as an exercise to research the details behind those steps.
- Kingroot requires a brief network connection (less than 30 sec). Be aware Amazon may attempt to push an OTA update while connected to the network. Be sure to reenable airplane mode after Kingroot finishes and whack the partially downloaded OTA file if needed.
BTW - not trying to make things difficult; I feel there is significant value in the suggested 'homework' assignment as it will build your confidence, reduce the chance of mistakes (some of which can have dire consequences) and facilitate self-help should something go wrong.
Thanks for the props; what I 'do' simply reflects a regurgitation of info gleaned from others. They are the ones who make all this possible (@ggow in particular). That said, I am sure many will appreciate a 'how to' guide should you decide to publish.

LOL - I certainly didn't think you were trying to make things difficult by suggesting the homework! I want the device to work after I'm done monkeying around with it - and, honestly, it's a matter of pride to feel like I can at least partially feed myself.
Ironically, it took your help to help me feed myself... so, thanks.
Anyway - I've had some very good success! I'm now updated to 4.5.2, Kingrooted, ES File Explorer, Safestrap 4.01 installed, and a backup has been run.
What I did see was that it was trying to download an update during the Kingroot process, and that got to 80%. I'd like to kill that update file before I proceed any further, just in case wireless somehow gets turned back on. I don't see the file in the root of /sdcard, though - do you know where that file goes?

CanadaDave77 said:
LOL - I certainly didn't think you were trying to make things difficult by suggesting the homework! I want the device to work after I'm done monkeying around with it - and, honestly, it's a matter of pride to feel like I can at least partially feed myself.
Ironically, it took your help to help me feed myself... so, thanks.
Anyway - I've had some very good success! I'm now updated to 4.5.2, Kingrooted, ES File Explorer, Safestrap 4.01 installed, and a backup has been run.
What I did see was that it was trying to download an update during the Kingroot process, and that got to 80%. I'd like to kill that update file before I proceed any further, just in case wireless somehow gets turned back on. I don't see the file in the root of /sdcard, though - do you know where that file goes?
Click to expand...
Click to collapse
Congrats on progress to date! You're through the tough hurdles and almost ready for some real fun.
OTA updates are written to the root of sdcard. The partial may have been deleted when the connection severed.
Thoughts:
- The partial OTA, if present, will likely be large. Do a deep search for .bin in ES File Explorer. Make sure 'show hidden files' is enabled.
- You can block further OTA updates in FireOS v4 by renaming DeviceSoftwareOTA.apk to DeviceSoftwareOTA.bak
- There is no need for the above action if you intend to immediately flash cm11 or Nexus v4 to the stock slot in Safestrap which replaces FireOS and associated ota mechanisms.

Related

[Q] Safestrapped Thor to unlocked bootloader

Hello,
I'm hoping that someone can help me out with this.
Last December i bought a Fire HDX 7 (Thor). I immediatley followed the procedure to install Safestrap and the Thor Nexus ROM v2.0.1. Shortly after that my device got lost. Just last week I found it because my parents moved. After this I started looking around the internet to check if there are any 5.0 or 5.1 ROMs available. I found out they are indeed available.
What I want to do now is get rid of Safestrap, unlock the bootloader and install TWRP to be able to flash new ROMs. I want to start using TWRP because I'm used to working with TWRP.
The problem is that I can't seem to find a way to get this done, despite searching for it on this page for several hours. Can anyone help me on the right track? Would be very much appreciated.
Timmetjuh said:
Hello,
I'm hoping that someone can help me out with this.
Last December i bought a Fire HDX 7 (Thor). I immediatley followed the procedure to install Safestrap and the Thor Nexus ROM v2.0.1. Shortly after that my device got lost. Just last week I found it because my parents moved. After this I started looking around the internet to check if there are any 5.0 or 5.1 ROMs available. I found out they are indeed available.
What I want to do now is get rid of Safestrap, unlock the bootloader and install TWRP to be able to flash new ROMs. I want to start using TWRP because I'm used to working with TWRP.
The problem is that I can't seem to find a way to get this done, despite searching for it on this page for several hours. Can anyone help me on the right track? Would be very much appreciated.
Click to expand...
Click to collapse
Your options are determined by the current version of Amazon firmware installed on your device. I assume you retained Fire OS in the base slot. Boot into that and poke around settings until you find the version number (should be 13.x.x plus some other gibberish). Post what you find and we'll go from there.
Caution: You should disable wifi immediately after booting into Fire OS to prevent an automatic update from Amazon from spoiling your day. At minimum an update will limit future options. I can also brick your device depending on firmware level and other previous mods (including safestrap). Disabling wifi in Nexus is not sufficient as the two roms operate independently.
Davey126 said:
Your options are determined by the current version of Amazon firmware installed on your device. I assume you retained Fire OS in the base slot. Boot into that and poke around settings until you find the version number (should be 13.x.x plus some other gibberish). Post what you find and we'll go from there.
Caution: You should disable wifi immediately after booting into Fire OS to prevent an automatic update from Amazon from spoiling your day. At minimum an update will limit future options. I can also brick your device depending on firmware level and other previous mods (including safestrap). Disabling wifi in Nexus is not sufficient as the two roms operate independently.
Click to expand...
Click to collapse
Could it be that I somehow deleted the Fire OS back then? Don't really remeber what I did exactly..
Timmetjuh said:
Could it be that I somehow deleted the Fire OS back then? Don't really remeber what I did exactly..
Click to expand...
Click to collapse
Quite possibly. Enjoy Nexus; it's a good rom. Alternatively, follow the directions to see if you still have Fire OS installed. If at/below v3.2.6 then Lollipop is possible albeit with a lot of work and significant risk to your device. Otherwise you are limited to Fire OS and Nexus.
Seriously, if you don't recall what you did and can't figure out how start Safestrap in recovery mode be happy with what you have. There are no step-by-step guides. You have to read (a lot) and be prepared for numerous setbacks including an unrecoverable brick of your now working Kindle.
Davey126 said:
Quite possibly. Enjoy Nexus; it's a good rom. Alternatively, follow the directions to see if you still have Fire OS installed. If at/below v3.2.6 then Lollipop is possible albeit with a lot of work and significant risk to your device. Otherwise you are limited to Fire OS and Nexus.
Seriously, if you don't recall what you did and can't figure out how start Safestrap in recovery mode be happy with what you have. There are no step-by-step guides. You have to read (a lot) and be prepared for numerous setbacks including an unrecoverable brick of your now working Kindle.
Click to expand...
Click to collapse
Sorry for my late response.. I just started Safestrap and can only find 1 ROM slot, the Stock ROM slot which probably means that I deleted the original OS.
I did find some files on my laptop that brought some memories back. What I did back then is downgrade the original software to version 13.3.2.6 and than to 13.3.1.0. Does this create any new possibilities?
I just managed to create a new ROM slot and succesfully installed stock 13.3.2.6 on it, so now running on Nexus ROM and stock 13.3.2.6.
Timmetjuh said:
Sorry for my late response.. I just started Safestrap and can only find 1 ROM slot, the Stock ROM slot which probably means that I deleted the original OS.
I did find some files on my laptop that brought some memories back. What I did back then is downgrade the original software to version 13.3.2.6 and than to 13.3.1.0. Does this create any new possibilities?
Click to expand...
Click to collapse
Timmetjuh said:
I just managed to create a new ROM slot and succesfully installed stock 13.3.2.6 on it, so now running on Nexus ROM and stock 13.3.2.6.
Click to expand...
Click to collapse
Warning: Do NOT allow Fire OS to auto-update. Doing so will likely brick your device. Short term the best way to prevent this is to only boot into Nexus. If necessary I can walk you through blocking OTA. Seriously - stay out of Fire OS for now.
I am no Safestrap expert but I believe the rom in the 'base' slot becomes the default when you uninstall Safestrap. So you may have some shuffling to do. Another concern is whether removing/reinstalling Fire OS will impact the ability to recognize the OS once Safetrap is gone. You need a functioning version of Fire OS (and recovery) to follow the 'standard' rollback/update/flash procedures.
However, there may be a shortcut. If 13.3.1.0 was the base rom just prior to installing Nexus and wiping out Fire OS you then should be able to flash twrp without further prep. That would give you access to both Nexus variants and CM11. Unfortunately, there is no easy way to determine the bootloader version which is the component that really matters. It should match the last version of Fire OS that was natively installed before you overwrite it with Nexus.
Unfortunately, the recent install of 13.3.2.6 into a safestrap slot complicates matters. I believe installs within Safestrap leaves the bootloader untouched. But I can't be sure. A misstep can leave your device in an unrecoverable condition; don't go experimenting.
Let's see which recovery you have installed. Power down the device then restart holding power + vol-up. When the grey Kindle logo appears release the power key; vol-up can be released a few seconds later. What happens after the grey logo disappears?
Davey126 said:
Warning: Do NOT allow Fire OS to auto-update. Doing so will likely brick your device. Short term the best way to prevent this is to only boot into Nexus. If necessary I can walk you through blocking OTA. Seriously - stay out of Fire OS for now.
I am no Safestrap expert but I believe the rom in the 'base' slot becomes the default when you uninstall Safestrap. So you may have some shuffling to do. Another concern is whether removing/reinstalling Fire OS will impact the ability to recognize the OS once Safetrap is gone. You need a functioning version of Fire OS (and recovery) to follow the 'standard' rollback/update/flash procedures.
However, there may be a shortcut. If 13.3.1.0 was the base rom just prior to installing Nexus and wiping out Fire OS you then should be able to flash twrp without further prep. That would give you access to both Nexus variants and CM11. Unfortunately, there is no easy way to determine the bootloader version which is the component that really matters. It should match the last version of Fire OS that was natively installed before you overwrite it with Nexus.
Unfortunately, the recent install of 13.3.2.6 into a safestrap slot complicates matters. I believe installs within Safestrap leaves the bootloader untouched. But I can't be sure. A misstep can leave your device in an unrecoverable condition; don't go experimenting.
Let's see which recovery you have installed. Power down the device then restart holding power + vol-up. When the grey Kindle logo appears release the power key; vol-up can be released a few seconds later. What happens after the grey logo disappears?
Click to expand...
Click to collapse
I see the following:
Kindle Fire System Recovery
Your Kindle doesn't seem to be able to boot. Resetting your device to Factory defaults may help you to fix this issue.
Then I get the options to Reboot or to reset to Factory Default.
Oh, the Fire OS is not connected to any networks so it won't be able to update.
Timmetjuh said:
I see the following:
Kindle Fire System Recovery
Your Kindle doesn't seem to be able to boot. Resetting your device to Factory defaults may help you to fix this issue.
Then I get the options to Reboot or to reset to Factory Default.
Oh, the Fire OS is not connected to any networks so it won't be able to update.
Click to expand...
Click to collapse
Ok - a working stock recovery. That's good.
I am conflicted on next steps. The scripted approach would have you uninstall Safestrap (assuming Fire OS had remained in slot 0), rollback to 3.1.0 and then install twrp. However, since slot 0 now contains Nexus I do not feel removing Safestrap is wise. Nor to I think reinstalling Fire OS in the base slow will yield a functioning system once Safestrap is gone.
The 'shortcut' would have you flash twrp recovery (via adb or Flashify) since your bootloader *should*_be at the right level due to a previous 3.1.0 rollback. However, if that is not correct you will end up with a borked recovery which is difficult to rectify.
In your shoes I would probably do nothing given the device is fully functional. The developer of the Nexus rom is working on a KitKat 'upgrade' which is close to being released; a Safestrap variant will hopefully follow. There's no shame in running Nexus. Upgrade to v4.4, add a few Xposed modules and you have fully supported, near AOSP environment that's only lacking a few eye candy elements from Lollipop.
Davey126 said:
Ok - a working stock recovery. That's good.
I am conflicted on next steps. The scripted approach would have you uninstall Safestrap (assuming Fire OS had remained in slot 0), rollback to 3.1.0 and then install twrp. However, since slot 0 now contains Nexus I do not feel removing Safestrap is wise. Nor to I think reinstalling Fire OS in the base slow will yield a functioning system once Safestrap is gone.
The 'shortcut' would have you flash twrp recovery (via adb or Flashify) since your bootloader *should*_be at the right level due to a previous 3.1.0 rollback. However, if that is not correct you will end up with a borked recovery which is difficult to rectify.
In your shoes I would probably do nothing given the device is fully functional. The developer of the Nexus rom is working on a KitKat 'upgrade' which is close to being released; a Safestrap variant will hopefully follow. There's no shame in running Nexus. Upgrade to v4.4, add a few Xposed modules and you have fully supported, near AOSP environment that's only lacking a few eye candy elements from Lollipop.
Click to expand...
Click to collapse
It's not that I don't like the Nexus ROM, I just like to experiment with these things..
So I just installed TWRP with Flashify (started Flashify from NEXUS) and now I seem stuck at the grey Kindle fire logo. I'm just going to leave it alone for a few hours, hopefully it boots later today.
Davey126 said:
Ok - a working stock recovery. That's good.
I am conflicted on next steps. The scripted approach would have you uninstall Safestrap (assuming Fire OS had remained in slot 0), rollback to 3.1.0 and then install twrp. However, since slot 0 now contains Nexus I do not feel removing Safestrap is wise. Nor to I think reinstalling Fire OS in the base slow will yield a functioning system once Safestrap is gone.
The 'shortcut' would have you flash twrp recovery (via adb or Flashify) since your bootloader *should*_be at the right level due to a previous 3.1.0 rollback. However, if that is not correct you will end up with a borked recovery which is difficult to rectify.
In your shoes I would probably do nothing given the device is fully functional. The developer of the Nexus rom is working on a KitKat 'upgrade' which is close to being released; a Safestrap variant will hopefully follow. There's no shame in running Nexus. Upgrade to v4.4, add a few Xposed modules and you have fully supported, near AOSP environment that's only lacking a few eye candy elements from Lollipop.
Click to expand...
Click to collapse
It still boots after a very long time, however I don't know if I get the possibility to enter recovery because it takes several hours to boot. Any more ideas?
Timmetjuh said:
It still boots after a very long time, however I don't know if I get the possibility to enter recovery because it takes several hours to boot. Any more ideas?
Click to expand...
Click to collapse
Power down device and attempt to enter recovery by pressing power + vol-up. Release the power button after the grey logo appears; vol-up can be released after a few seconds. What happens next? Likely one of the following (good -> bad):
- blue screen followed by twrp recovery
- stock recovery with only two options: factory reset and reboot
- continuation of grey kindle logo
Davey126 said:
Power down device and attempt to enter recovery by pressing power + vol-up. Release the power button after the grey logo appears; vol-up can be released after a few seconds. What happens next? Likely one of the following (good -> bad):
- blue screen followed by twrp recovery
- stock recovery with only two options: factory reset and reboot
- continuation of grey kindle logo
Click to expand...
Click to collapse
I'm stuck at the grey Kindle logo..
Did it! Managed to flash the stock bootloader, rollback and install TWRP. Now ready to flash CM11. Thanks for you help!
Timmetjuh said:
Did it! Managed to flash the stock bootloader, rollback and install TWRP. Now ready to flash CM11. Thanks for you help!
Click to expand...
Click to collapse
Congrats! Had a bad feeling after your earlier post; glad that was misplaced. Enjoy CM11 and all the goodness that comes from a liberated HDX.
At some point you should consider unlocking the bootloader. That will provide an important fail safe should things go wrong and opens the door to newer roms. Unlike previous flashes there is little/no risk in unlocking. It will either work or not with no adverse consequences. Unlocking can be a frustrating ride as the process involves multiple steps in unfamiliar territory but ultimately the benefits outweigh the effort IMO. Nothing that needs to be tackled right away but keep it on your radar ... especially if you plan to experiment with other roms.
Unlock bootloader
Hello davey,
I am also interested in getting from safestrap v4 to an unlocked bootloader in order to use a lollipop ROM. My 3rd gen hdx 7 started on 4.5.5 so I did OTA rollback to 3.2.8, upgraded to 4.5.2, then rooted and safestrapped. Unfortunately I lost my stock ROM, but I current have both CM11 and HDZ nexus v4 on 2 different ROM slots. What would be my best way to proceed? From my research so far, it would appear I need to flash hdx nexus 2.0, then flash rollback image to get to modified 3.2.4, and from there 3.1.0 stock update with will allow me to use python method to unlock BL. Is this all correct?
Thanks in advance for your guidance
slothdabski said:
Hello davey,
I am also interested in getting from safestrap v4 to an unlocked bootloader in order to use a lollipop ROM. My 3rd gen hdx 7 started on 4.5.5 so I did OTA rollback to 3.2.8, upgraded to 4.5.2, then rooted and safestrapped. Unfortunately I lost my stock ROM, but I current have both CM11 and HDZ nexus v4 on 2 different ROM slots. What would be my best way to proceed? From my research so far, it would appear I need to flash hdx nexus 2.0, then flash rollback image to get to modified 3.2.4, and from there 3.1.0 stock update with will allow me to use python method to unlock BL. Is this all correct?
Thanks in advance for your guidance
Click to expand...
Click to collapse
No. You can NOT unlock the bootloader! You can NOT downgrade to 3.2.4 and then further to 3.1.0/3.2.3.2! DON'T attempt to do so, you will brick your HDX!
Your only available option is to stay on 4.5.2 and use Safestrap v4 with either Nexus and/or CM11.
slothdabski said:
Hello davey,
I am also interested in getting from safestrap v4 to an unlocked bootloader in order to use a lollipop ROM. My 3rd gen hdx 7 started on 4.5.5 so I did OTA rollback to 3.2.8, upgraded to 4.5.2, then rooted and safestrapped. Unfortunately I lost my stock ROM, but I current have both CM11 and HDZ nexus v4 on 2 different ROM slots. What would be my best way to proceed? From my research so far, it would appear I need to flash hdx nexus 2.0, then flash rollback image to get to modified 3.2.4, and from there 3.1.0 stock update with will allow me to use python method to unlock BL. Is this all correct?
Thanks in advance for your guidance
Click to expand...
Click to collapse
Unfortunately, you can not unlock your bootloader. Amazon introduced anti-rollback protection that will hard brick the device if rolled back below 3.2.8. Sorry, mate.
Davey126 said:
Unfortunately, you can not unlock your bootloader. Amazon introduced anti-rollback protection that will hard brick the device if rolled back below 3.2.8. Sorry, mate.
Click to expand...
Click to collapse
Thanks Davey, you have been very helpful replying to me in another thread also. My reason for seeking a ROM other, than Nexus v4 or CM11, is the kitkat bluetooth tether/VPN bug documented at code.google.com/p/android/issues/detail?id=62714 (sorry for no direct link, xda won't let me post them yet). A "work around" is to establish a wifi connection, even if it doesnt have internet access. This, for whatever reason, allows kitkat to forward the packets to apps on the kindle. I probably could get away with plugging in an old access point at work to enable the sharing sharing of my phones data connection with my safestrap kitkit kindle, but this isn't practical outside of my workplace.
FYI, I cant share my phone's connection via wifi because its an ATT note 4 with lollipop, a locked bootloader, and no permaroot available. I doubt there's a way to tether between 2 android devices via microUSB; but i'd be open to that too!
Thanks again for your wisdom and expertise!
slothdabski said:
Thanks Davey, you have been very helpful replying to me in another thread also. My reason for seeking a ROM other, than Nexus v4 or CM11, is the kitkat bluetooth tether/VPN bug documented at code.google.com/p/android/issues/detail?id=62714 (sorry for no direct link, xda won't let me post them yet). A "work around" is to establish a wifi connection, even if it doesnt have internet access. This, for whatever reason, allows kitkat to forward the packets to apps on the kindle. I probably could get away with plugging in an old access point at work to enable the sharing sharing of my phones data connection with my safestrap kitkit kindle, but this isn't practical outside of my workplace.
FYI, I cant share my phone's connection via wifi because its an ATT note 4 with lollipop, a locked bootloader, and no permaroot available. I doubt there's a way to tether between 2 android devices via microUSB; but i'd be open to that too!
Thanks again for your wisdom and expertise!
Click to expand...
Click to collapse
I actually just got it working by running the following as SU in terminal emaulator
# ip route add default dev tun0 scope link
Not sure yet if I have to do this every time I tether, but if so, i think i can just make a script to execute automatically?

please help. Kindle fire HDX 8.9 stuck on grey language screen

Hello, hoping one you experienced Kindle fire HDX 8.9 users can help me. Ok, my kindle fire HDX is running a stock factory rom/ software. The current firmware is 14.3.10. I rooted it a year ago with one of the programs I found on the net.
I kept getting the add pop-ups, so I used sql editor to change one or two of the fields to stop the add pop-ups as per instructions on the net. What ever root program I used, also disabled OTA updates. I installed the common files for getting the google playstore on the device. So over time, the playstore crashed, kept getting the error most people get about playstore has stopped working. I went in and uninstalled the playstore files. Then I decided to do a factory restore. BIG MISTAKE!!
Kindle fire HDX reset, and put me back to the registration screen. I was able to re-register it, then it went to the grey language screen. I choose English. So the problem is: It keeps looping to the language screen. I can choose English, then ok at the bottom of the screen, but it just goes back to the language screen. I can power it down, and back up. I get my unlock screen, and I can see the icon screen, and even go into the settings for about 20 to 30 seconds before it loops to the grey language screen. The kindle does not do any auto re-booting, it just stays stuck on the language screen until I power it down and back up.
Next, I can connect it to my PC through the USB cable, and the kindle is recognized. I have downloaded the program from XDA developers KFHD SRT 2.0. I can start that program, and it recognizes the Kindle , and it will put it into Fastboot mode. The kindle says fastboot and ready on the screen. I'm not sure what to do at this point. I dont want to jack up my kindle anymore than it already is. I read somewhere, that I may have to order a special USB cable for fastboot. I'm not sure if this is true. I never installed any recovery software on the Kindle, nor did I make a back up that I know of.
So what is the easy fix to get it back to stock and get it out this soft loop. I'm sure it can be repaired being I still have some access. I Thank any of you who will take the time to guide me through the process or point me to the right programs and files needed to get it working again.
Thanks
All you need to do is temporarily re-enable OTA updates (HDX Toolkit?)
rlkellyjr said:
Hello, hoping one you experienced Kindle fire HDX 8.9 users can help me. Ok, my kindle fire HDX is running a stock factory rom/ software. The current firmware is 14.3.10. I rooted it a year ago with one of the programs I found on the net.
I kept getting the add pop-ups, so I used sql editor to change one or two of the fields to stop the add pop-ups as per instructions on the net. What ever root program I used, also disabled OTA updates. I installed the common files for getting the google playstore on the device. So over time, the playstore crashed, kept getting the error most people get about playstore has stopped working. I went in and uninstalled the playstore files. Then I decided to do a factory restore. BIG MISTAKE!!
Kindle fire HDX reset, and put me back to the registration screen. I was able to re-register it, then it went to the grey language screen. I choose English. So the problem is: It keeps looping to the language screen. I can choose English, then ok at the bottom of the screen, but it just goes back to the language screen. I can power it down, and back up. I get my unlock screen, and I can see the icon screen, and even go into the settings for about 20 to 30 seconds before it loops to the grey language screen. The kindle does not do any auto re-booting, it just stays stuck on the language screen until I power it down and back up.
Next, I can connect it to my PC through the USB cable, and the kindle is recognized. I have downloaded the program from XDA developers KFHD SRT 2.0. I can start that program, and it recognizes the Kindle , and it will put it into Fastboot mode. The kindle says fastboot and ready on the screen. I'm not sure what to do at this point. I dont want to jack up my kindle anymore than it already is. I read somewhere, that I may have to order a special USB cable for fastboot. I'm not sure if this is true. I never installed any recovery software on the Kindle, nor did I make a back up that I know of.
So what is the easy fix to get it back to stock and get it out this soft loop. I'm sure it can be repaired being I still have some access. I Thank any of you who will take the time to guide me through the process or point me to the right programs and files needed to get it working again.
Thanks
Click to expand...
Click to collapse
Careful what you read on the "net"; fastboot (special USB) cables are useless on a HDX. KFHD SRT is for a different device. Factory resets on a HDX often result in more harm than good as you discovered.
Stock launcher is likely hosed. Common fix is to sideload a third party launcher (recommend Apex or Nova) to regain temporary control over your device and then repair the problem. The latter is best accomplished by allowing FireOS to upgrade (thus replacing the botched components) but that may create to further headaches given the extensive modifications already made to FireOS and lack of detail around exactly what was done.
You'll need to learn some adb commands to install Apex/Nova via USB tether. A slimmed down version of ADB can be found here (Windows host).
Given your firmware version I suggest flashing TWRP (here) which will give your a 'real' recovery. From there you can install Nexus v2 (new rom) which frees your device from the limitations of FireOS and supports full access to the world of Google including the play store. You can stay on Nexus v2 or take the next step and unlock the bootloader which will open the door to additional roms including Nexus v4, CM11 (both KitKat) and CM12 (lollipop). Note the above is not an Rx; I have left out several steps in the interest if brevity. Will fill in the details as needed.
If you want to keep FireOS then you have to unblock OTA (suggest HDX toolkit) and upgrade to a newer version of FireOS (suggest 3.2.6). There is some risk involved but safer than tinkering with your current install which you lead to an unrecoverable situation.
Update !!!
Thanks for your help. I used HDX tool kit to re-enable updates. The kindle took and update, so it is at 4.5.2. But now it wants to install the newer update as soon as I power it on. What should I do?? Is the newer update (4.5.3 or higher / unknow at this time) still going to allow root.
rlkellyjr said:
Thanks for your help. I used HDX tool kit to re-enable updates. The kindle took and update, so it is at 4.5.2. But now it wants to install the newer update as soon as I power it on. What should I do?? Is the newer update (4.5.3 or higher / unknow at this time) still going to allow root.
Click to expand...
Click to collapse
You'll need to root via adb. You can then disable OTA updates by renaming a system file.
- enable adb via settings -> device -> enable ADB
- tether via standard USB cable
- install minimal adb and fastboot (Windows host)
- open command window, switch to adb directory and issue command 'adb devices'. If no responses install drivers, reboot Windows and try again
- (optional) some lite reading on adb command
- grab kingroot apk, place in adb folder and then issue command 'adb install <package-name>.apk'
- install ES File Explorer in a similar manner
- run kingroot from your HDX. If it requests Internet connectivity enable WiFi briefly (<30 sec) until it completes then immediately disable (or place in airplane mode)
- replace Kinguser with SuperSU (here)
- enable root support in ES File Explorer via toggle in left side panel navigate to /system/priv-app/ and search for DeviceSoftwareOTA.apk
- use ES File Explorer to rename DeviceSoftwareOTA.apk to DeviceSoftwareOTA.old (or whatever name you want provided it does not end in .apk)
At this point you can safely enable WiFi. I strongly suggest installing Safestrap v4 before making any other changes to your device. This tool offers:
- enhanced recovery capability (it is not a full recovery but better than Amazon's tools)
- ability to make a complete backup of your device; essential should something go wrong
- ability to install other roms including Nexus v4 or CM11
Good luck.
final steps in re-rooting and preventing update
What file do I need to rename to prevent the pending update from installing. My kindle is powered off currently, if I turn it on its going to go straight to the kindle fire screen and state installing the update. What do I need to rename the file to? I'm assuming I can do all that you tell me to do thru windows 7 , with the kindle connected via USB and it being powered off????
Thank you for your time in helping me getting it going again.
rlkellyjr said:
What file do I need to rename to prevent the pending update from installing. My kindle is powered off currently, if I turn it on its going to go straight to the kindle fire screen and state installing the update. What do I need to rename the file to? I'm assuming I can do all that you tell me to do thru windows 7 , with the kindle connected via USB and it being powered off????
Thank you for your time in helping me getting it going again.
Click to expand...
Click to collapse
Assuming you missed my prior post given close timestamps. Details here. Kindle must be powered on to issue adb commands. To prevent and immediate OTA either: 1) place device in airplane mode; or 2) move to an area where it can not connect to WiFi.
Follow up, needing help still
Davey126 said:
Assuming you missed my prior post given close timestamps. Details here. Kindle must be powered on to issue adb commands. To prevent and immediate OTA either: 1) place device in airplane mode; or 2) move to an area where it can not connect to WiFi.
Click to expand...
Click to collapse
Thank you Sir. I guess I need to clarify what I meant by update. My kindle has already downloaded the update, so it is trying to install or apply the update upon start up. So I just press and held the power button to power it off. However as soon as I power it back on, the kindle will go back to the screen where it's trying to install the update. Is there a way to stop it from applying the update, and still accomplish what you suggested.
Thank you for any help that you can provide.
rlkellyjr said:
Thank you Sir. I guess I need to clarify what I meant by update. My kindle has already downloaded the update, so it is trying to install or apply the update upon start up. So I just press and held the power button to power it off. However as soon as I power it back on, the kindle will go back to the screen where it's trying to install the update. Is there a way to stop it from applying the update, and still accomplish what you suggested.
Thank you for any help that you can provide.
Click to expand...
Click to collapse
Well that's a problem. Are you certain it is trying to process fully downloaded OTA upate to FireOS (likely 4.5.5) vs completing the 4.5.2 install? The messages look a bit similar. If it is trying to update to a higher version I would let it complete as the risk of interrupting the update mid-stream could leave you in a worse state. You would then need to perform the 3.2.8 rollback / 4.5.2 update again. Or just stay with 4.5.5 depending on your passion around root and/or running an alternate rom (via Safestrap) on this device.
Davey126 said:
Well that's a problem. Are you certain it is trying to process fully downloaded OTA upate to FireOS (likely 4.5.5) vs completing the 4.5.2 install? The messages look a bit similar. If it is trying to update to a higher version I would let it complete as the risk of interrupting the update mid-stream could leave you in a worse state. You would then need to perform the 3.2.8 rollback / 4.5.2 update again. Or just stay with 4.5.5 depending on your passion around root and/or running an alternate rom (via Safestrap) on this device.
Click to expand...
Click to collapse
I think it might be trying to install the 4.5.5. Could be wrong?? So if you suggest, I will let it finish what it's trying to do. But I do want to obtain root again, and install the playstore. I'm not sure if these most recent updates lock the bootloader, where I can not install another custom OS. Or if a roll back will re-enable it. I'm still new to the Kindle. It's been rooted for over a year, and I never had a reason to mess with it, until the start of this thread.
Thank You.
rlkellyjr said:
I think it might be trying to install the 4.5.5. Could be wrong?? So if you suggest, I will let it finish what it's trying to do. But I do want to obtain root again, and install the playstore. I'm not sure if these most recent updates lock the bootloader, where I can not install another custom OS. Or if a roll back will re-enable it. I'm still new to the Kindle. It's been rooted for over a year, and I never had a reason to mess with it, until the start of this thread.
Thank You.
Click to expand...
Click to collapse
If there is no way to stop the installation, then I might as well power it back on , and let it finish. Is there not a way to make it do a factor reset, or boot loader menu I could put it in, providing a little time to modify a the update file to prevent it from updating??
Thanks
rlkellyjr said:
I think it might be trying to install the 4.5.5. Could be wrong?? So if you suggest, I will let it finish what it's trying to do. But I do want to obtain root again, and install the playstore. I'm not sure if these most recent updates lock the bootloader, where I can not install another custom OS. Or if a roll back will re-enable it. I'm still new to the Kindle. It's been rooted for over a year, and I never had a reason to mess with it, until the start of this thread.
Click to expand...
Click to collapse
Updating to 4.5.2 eliminated the path to an unlocked bootloader. However, there is an alternate solution (Safestrap v4) that permits loading other KitKat based roms (currently Nexus and CM11) but you must be running FireOS 4.5.2 first. Note 4.5.5 can not be rooted at present.
I strongly discourage layering gapps onto FireOS. Amazon and Google components don't play nice; you can get it to work (mostly) but maintenance is a nightmare as each version change seems to bring new headaches. A better solution is to use one of the previously mentioned roms which turns your HDX into a 'normal' Android tablet with full access to the Playstore.
As previously mentioned keep WiFi off until your tablet completes whatever updates it is trying to apply. Post back the final version number which will dictate future steps.
Davey126 said:
Updating to 4.5.2 eliminated the path to an unlocked bootloader. However, there is an alternate solution (Safestrap v4) that permits loading other KitKat based roms (currently Nexus and CM11) but you must be running FireOS 4.5.2 first. Note 4.5.5 can not be rooted at present.
I strongly discourage layering gapps onto FireOS. Amazon and Google components don't play nice; you can get it to work (mostly) but maintenance is a nightmare as each version change seems to bring new headaches. A better solution is to use one of the previously mentioned roms which turns your HDX into a 'normal' Android tablet with full access to the Playstore.
As previously mentioned keep WiFi off until your tablet completes whatever updates it is trying to apply. Post back the final version number which will dictate future steps.
Click to expand...
Click to collapse
Ok, its sitting at 4.5.4 airplane mode is on. So what is my next step from here.
Thanks
rlkellyjr said:
Ok, its sitting at 4.5.4 airplane mode is on. So what is my next step from here.
Click to expand...
Click to collapse
To secure root and Safestrap v4 you will need to rollback to 4.5.2 via 3.2.8 (there is no direct path). There is risk involved; procedures need to be followed carefully to avoid permanently bricking your device. Don't take that lightly; new causalities are reported with surprising frequency from individuals who skipped steps or simply made a mistake. Amazon devices are unforgiving. Also note there are no step-by-step guides or videos. It's your responsibility to understand the end-to-end process and associated procedures.
First have a read through this thread. Everything you need is there but like most of the forums it is disorganized and full of off-topic commentary.
Before starting I recommend downloading the following into the suggested folders (you'll need to create these; name them as you wish):
- 3.2.8 rollback file for Apollo (here) -> 328RB folder
- 4.5.2 update file for Apollo (here) -> 452UD folder
- ES File Explorer (here) -> Tools folder
- Kingroot (here) -> Tools folder
Thoughts:
- keep above files in respective folders until needed
- make sure you can see/communicate with your device via USB tether. Vital for transferring files and performing certain functions should things go wrong.
- keep WiFi off at all times unless instructed otherwise. Keep airplane mode engaged (on). If possible stay away from open hotspots; skip WiFi setup when prompted
- WARNING: If you device takes an OTA update during rollback it will almost certainly brick with no chance of recovery. OTA updates are delivered via WiFi.
- WARNING: Never perform a 'factory reset' from the HDX recovery menu unless specifically instructed to do so.
Ask questions if unsure. Good luck.
Thanks for your help
Davey126 said:
To secure root and Safestrap v4 you will need to rollback to 4.5.2 via 3.2.8 (there is no direct path). There is risk involved; procedures need to be followed carefully to avoid permanently bricking your device. Don't take that lightly; new causalities are reported with surprising frequency from individuals who skipped steps or simply made a mistake. Amazon devices are unforgiving. Also note there are no step-by-step guides or videos. It's your responsibility to understand the end-to-end process and associated procedures.
First have a read through this thread. Everything you need is there but like most of the forums it is disorganized and full of off-topic commentary.
Before starting I recommend downloading the following into the suggested folders (you'll need to create these; name them as you wish):
- 3.2.8 rollback file for Apollo (here) -> 328RB folder
- 4.5.2 update file for Apollo (here) -> 452UD folder
- ES File Explorer (here) -> Tools folder
- Kingroot (here) -> Tools folder
Thoughts:
- keep above files in respective folders until needed
- make sure you can see/communicate with your device via USB tether. Vital for transferring files and performing certain functions should things go wrong.
- keep WiFi off at all times unless instructed otherwise. Keep airplane mode engaged (on). If possible stay away from open hotspots; skip WiFi setup when prompted
- WARNING: If you device takes an OTA update during rollback it will almost certainly brick with no chance of recovery. OTA updates are delivered via WiFi.
- WARNING: Never perform a 'factory reset' from the HDX recovery menu unless specifically instructed to do so.
Ask questions if unsure. Good luck.
Click to expand...
Click to collapse
Thank you for all your help.
A tad more info needed
rlkellyjr said:
Thank you for all your help.
Click to expand...
Click to collapse
Can I apply the downgrade with 4.5.4, or do I need to let the kindle update to 4.5.5 before attempting the downgrade. ???
Thanks again.
can rollback be done with firmware 4.5.4 ?
rlkellyjr said:
Thank you for all your help.
Click to expand...
Click to collapse
can the roll back be applied to 4.5.4? or do I need to update all the way to 4.5.5 before doing the roll back. Thanks..
rlkellyjr said:
can the roll back be applied to 4.5.4? or do I need to update all the way to 4.5.5 before doing the roll back. Thanks..
Click to expand...
Click to collapse
rlkellyjr said:
Can I apply the downgrade with 4.5.4, or do I need to let the kindle update to 4.5.5 before attempting the downgrade. ???
Thanks again.
Click to expand...
Click to collapse
You can begin the rollback from any variant of FireOS v4 including 4.5.4.

Will there ever be a more simple way to unlock bootloader Thor 13.3.2.4

I am on rooted Thor with 13.3.2.4, with the Nexus Rom installed via safestrap. I have been reading all the threads on unlocking the bootloader and find all of the steps to be very scary. I would like to wait until there was some kind of "toolkit" for this rather than having to first downgrade and then use python through adb etc which I am somewhat uncomfortable with. Will there ever be such a simpler solution?
The bootloader unlock procedure is a no brainer, can't mess up anything there. Downgrading is a little risky, but you're on 3.2.4, thus you can even use the rollback images for Safestrap, take a look at this thread (page 1 is about 3.2.5/3.2.6 users who can NOT use the downgrade images). I'm afraid it won't get any easier than that.
If you don't want to use Python, just execute the adb commands to get your ID and serial (post them here, or PM me if you don't want anyone to see them), I'll create the .unlock file for you then. Downgrading and (actual) unlocking are tasks you have to do yourself though.
I think I might try it this weekend. Thanks for the help.
Cl4ncy said:
The bootloader unlock procedure is a no brainer, can't mess up anything there. Downgrading is a little risky, but you're on 3.2.4, thus you can even use the rollback images for Safestrap, take a look at this thread (page 1 is about 3.2.5/3.2.6 users who can NOT use the downgrade images). I'm afraid it won't get any easier than that.
If you don't want to use Python, just execute the adb commands to get your ID and serial (post them here, or PM me if you don't want anyone to see them), I'll create the .unlock file for you then. Downgrading and (actual) unlocking are tasks you have to do yourself though.
Click to expand...
Click to collapse
I have successfully downgraded to 13.3.1.0, but I am confused about how to install TWRP. Since I have not enabled wifi and registered, I can't install flashify or cwm, or even install a file explorer apk to access my storage, and I don't know how to get the twrp.img file (which I guess I can only install via adb?) Where do I get the correct twrp.img file? I'm kind of stuck....
kbs24 said:
I have successfully downgraded to 13.3.1.0, but I am confused about how to install TWRP. Since I have not enabled wifi and registered, I can't install flashify or cwm, or even install a file explorer apk to access my storage, and I don't know how to get the twrp.img file (which I guess I can only install via adb?) Where do I get the correct twrp.img file? I'm kind of stuck....
Click to expand...
Click to collapse
I am by no means an expert but I just went through this process myself yesterday and it was relatively simple. Check this thread. It has a number of helpful posts in it, including my questions from yesterday.
The correct TWRP image is here. Just follow the instructions in that thread. It's super simple if you use the minimal adb and fastboot linked by Cl4ncy in the first thread I linked. If you have any other questions I'll do my best to help you.
kbs24 said:
I have successfully downgraded to 13.3.1.0, but I am confused about how to install TWRP. Since I have not enabled wifi and registered, I can't install flashify or cwm, or even install a file explorer apk to access my storage, and I don't know how to get the twrp.img file (which I guess I can only install via adb?) Where do I get the correct twrp.img file? I'm kind of stuck....
Click to expand...
Click to collapse
Sorry for the late reply, @muunkin pointed you in the right direction already.
Be sure to (re-)root 3.1.0 and disable OTA via HDX ToolKit, and enable USB debugging in Fire OS, hope you installed minimal adb and fastboot, then copy the TWRP image for your HDX (Thor = 7", Apollo = 8.9") to the root of the sdcard (which is the directory you'll see in Explorer after connecting the HDX to your PC, i.e. don't open another directory), open a DOS box, change dir to the adb directory (enter cd\adb) and enter the commands mentioned in the TWRP thread. This will flash the TWRP image to the recovery parition.
Do a backup of your Fire OS in TWRP before you flash any custom ROM, and copy it to your PC, also look for the TWRP backup of the stock recovery (I think TWRP does a backup somewhere), and move that to your PC as well.
In case you don't know how to access TWRP: with the HDX powered off, you press and hold volume up, then press and hold the power button, release both when the grey Kindle Fire logo appears on screen. Some ROMs (e.g. CM12) offer the advanced reboot in developer options, this will add options to reboot into recovery, bootloader or a soft (quick) reboot to the power menu.
Cl4ncy said:
Sorry for the late reply, @muunkin pointed you in the right direction already.
Be sure to (re-)root 3.1.0 and disable OTA via HDX ToolKit, and enable USB debugging in Fire OS, hope you installed minimal adb and fastboot, then copy the TWRP image for your HDX (Thor = 7", Apollo = 8.9") to the root of the sdcard (which is the directory you'll see in Explorer after connecting the HDX to your PC, i.e. don't open another directory), open a DOS box, change dir to the adb directory (enter cd\adb) and enter the commands mentioned in the TWRP thread. This will flash the TWRP image to the recovery parition.
Do a backup of your Fire OS in TWRP before you flash any custom ROM, and copy it to your PC, also look for the TWRP backup of the stock recovery (I think TWRP does a backup somewhere), and move that to your PC as well.
In case you don't know how to access TWRP: with the HDX powered off, you press and hold volume up, then press and hold the power button, release both when the grey Kindle Fire logo appears on screen. Some ROMs (e.g. CM12) offer the advanced reboot in developer options, this will add options to reboot into recovery, bootloader or a soft (quick) reboot to the power menu.
Click to expand...
Click to collapse
Thank you both @muunkin and @Cl4ncy for guiding me through this. It is clear now that I have to flash TWRP via adb. Unfortunately I did, however, last night briefly turn on wifi in order to get es file explorer, and very quickly the OS ugraded itself to 13.3.2.3. Then, stupidly, I decided to go back to Nexus rom 2.0.2, which I did by reinstalling safestrap. And, Nexus rom is installed on the Stock Rom slot, and I did NOT backup the 13.3.2.3 stock rom. SO, since I am on Nexus rom, do I understand correctly that I need to begin again by downgrading to 13.3.1.0? Right? (After printing out all of these threads and printing out a lot of it and carefully reading, it looks to me like if I had stayed on stock 13.3.2.3 I would not have had to downgrade.....but too late now anyway.) I do have the minimal adb and fastboot installed, and my device is recognized, so eventually this will work I'm pretty sure. I appreciate the help!
kbs24 said:
Thank you both @muunkin and @Cl4ncy for guiding me through this. It is clear now that I have to flash TWRP via adb. Unfortunately I did, however, last night briefly turn on wifi in order to get es file explorer, and very quickly the OS ugraded itself to 13.3.2.3. Then, stupidly, I decided to go back to Nexus rom 2.0.2, which I did by reinstalling safestrap. And, Nexus rom is installed on the Stock Rom slot, and I did NOT backup the 13.3.2.3 stock rom. SO, since I am on Nexus rom, do I understand correctly that I need to begin again by downgrading to 13.3.1.0? Right? (After printing out all of these threads and printing out a lot of it and carefully reading, it looks to me like if I had stayed on stock 13.3.2.3 I would not have had to downgrade.....but too late now anyway.) I do have the minimal adb and fastboot installed, and my device is recognized, so eventually this will work I'm pretty sure. I appreciate the help!
Click to expand...
Click to collapse
No, 13.3.2.3 is ok for both TWRP and unlocking the bootloader, i.e. no need to flash 3.1.0 again - a firmware below 3.2.4 is enough.
Cl4ncy said:
No, 13.3.2.3 is ok for both TWRP and unlocking the bootloader, i.e. no need to flash 3.1.0 again - a firmware below 3.2.4 is enough.
Click to expand...
Click to collapse
Even if I am not running on the stock rom? I can adb install TWRP while on Nexus rom?
kbs24 said:
Even if I am not running on the stock rom? I can adb install TWRP while on Nexus rom?
Click to expand...
Click to collapse
Hm, I'm not exactly sure about this - @ggow's answer here seems to point out that you really have to do it all over again.
Why did you install Safestrap again anyway? ADB-flashing TWRP and unlocking the bootloader before you install a custom ROM would've been the next steps. Also I told you to create a backup of your stock slot before you flash any custom ROM, didn't I?
Cl4ncy said:
Hm, I'm not exactly sure about this - @ggow's answer here seems to point out that you really have to do it all over again.
Why did you install Safestrap again anyway? ADB-flashing TWRP and unlocking the bootloader before you install a custom ROM would've been the next steps. Also I told you to create a backup of your stock slot before you flash any custom ROM, didn't I?
Click to expand...
Click to collapse
Yes you sure did, and that's why I said "stupidly" about me putting safestrap back and nexus rom. I was overanxious and acted impulsively, not having a recovery installed was freaking me out. Bad habit. About doing the backup, there did not appear to be enough room on the internal storage. Sorry. We'll start over no problem. Again thanks.
kbs24 said:
Yes you sure did, and that's why I said "stupidly" about me putting safestrap back and nexus rom. I was overanxious and acted impulsively, not having a recovery installed was freaking me out. Bad habit. About doing the backup, there did not appear to be enough room on the internal storage. Sorry. We'll start over no problem. Again thanks.
Click to expand...
Click to collapse
I'm also not sure how to do this now. You don't have any Safestrap 3.2.3 Fire OS backup to restore, you shouldn't use the 3.2.4 rollback image, as you're not on 3.2.4, so what do you want to flash to the stock slot now? Or did I miss anything?
Cl4ncy said:
I'm also not sure how to do this now. You don't have any Safestrap 3.2.3 Fire OS backup to restore, you shouldn't use the 3.2.4 rollback image, as you're not on 3.2.4, so what do you want to flash to the stock slot now? Or did I miss anything?
Click to expand...
Click to collapse
I was going to look for a stock 3.2.3 to flash. If can't find, I do have a backup of stock 3.2.4 on the card which I would flash, thus requiring the downgrade.
kbs24 said:
I was going to look for a stock 3.2.3 to flash. If can't find, I do have a backup of stock 3.2.4 on the card which I would flash, thus requiring the downgrade.
Click to expand...
Click to collapse
I haven't seen a 3.2.3 Safestrap flashable Image, good luck. Regarding the 3.2.4 backup I'm not sure whether it works with the 3.2.3 bootloader.
Cl4ncy said:
I haven't seen a 3.2.3 Safestrap flashable Image, good luck. Regarding the 3.2.4 backup I'm not sure whether it works with the 3.2.3 bootloader.
Click to expand...
Click to collapse
Yeah, I am probably screwed. But we'll see. I'm pretty sure I understand what the process should be at least.
kbs24 said:
Yeah, I am probably screwed. But we'll see. I'm pretty sure I understand what the process should be at least.
Click to expand...
Click to collapse
Not sure how far you got with this but you *should* be able to flash TWRP from Nexus provided the version of FireOS was 3.2.3.2 or lower prior to the installation of Safestrap v3. The customized version of twrp leverages a vulnerability in the HDX bootloader that is installed with FireOS. Neither Safestrap nor Nexus mess with the bootloader so the prerequisites should remain intact. I say should as interactions are complex - further complicated by a fussy device with limited recovery capability should something go wrong. To the best of my knowledge no one has attempted a twrp flash from Nexus while Safestrap v3 is installed.
Thoughts:
- grab flashify from the play store or here; make a backup of your current recovery environment (this step will also help to familiarize you with flashify)
- download the HDX customized version of twrp (here); use ES File Explorer to verify MD5
- use flashify to install twrp (can also be done via adb commands as shown in the twrp op)
Options:
- unlock the bootloader before attempting other remedial steps. Unlocking is a frustrating but low/no risk activity that yields substantially improved recovery capabilities once completed. Yep - you can do this without twrp (unlocking before flashing twrp is the recommended path according to several devs - although I prefer the opposite).
[-or-]
- flash 3.1.0 from here to the stock slot and then attempt to remove Safestrap v3. If successful you can proceed with flashing twrp unlocking, etc in the normal manner. As with any flash there is a risk something will go wrong or FireOS will not start up properly. To help mitigate the latter suggest installing a fallback version of Nexus v2 in a secondary slot. Don't forget to remove this slot before uninstalling SS.
The above is only an outline. Give it some thought and post any questions BEFORE taking action. I also suggest you let this post sit for a few days in case some of the rational is fatally flawed. Lots of smart people in the community who will jump in if my guidance is misdirected (which it has been shown to be on occasion). Don't risk a brick by acting too quickly. Proper preparation is essential for a successful outcome.
Sorry for sounding like your mum ... :angel:
Davey126 said:
Not sure how far you got with this but you *should* be able to flash TWRP from Nexus provided the version of FireOS was 3.2.3.2 or lower prior to the installation of Safestrap v3. The customized version of twrp leverages a vulnerability in the HDX bootloader that is installed with FireOS. Neither Safestrap nor Nexus mess with the bootloader so the prerequisites should remain intact. I say should as interactions are complex - further complicated by a fussy device with limited recovery capability should something go wrong. To the best of my knowledge no one has attempted a twrp flash from Nexus while Safestrap v3 is installed.
Thoughts:
- grab flashify from the play store or here; make a backup of your current recovery environment (this step will also help to familiarize you with flashify)
- download the HDX customized version of twrp (here); use ES File Explorer to verify MD5
- use flashify to install twrp (can also be done via adb commands as shown in the twrp op)
Options:
- unlock the bootloader before attempting other remedial steps. Unlocking is a frustrating but low/no risk activity that yields substantially improved recovery capabilities once completed. Yep - you can do this without twrp (unlocking before flashing twrp is the recommended path according to several devs - although I prefer the opposite).
[-or-]
- flash 3.1.0 from here to the stock slot and then attempt to remove Safestrap v3. If successful you can proceed with flashing twrp unlocking, etc in the normal manner. As with any flash there is a risk something will go wrong or FireOS will not start up properly. To help mitigate the latter suggest installing a fallback version of Nexus v2 in a secondary slot. Don't forget to remove this slot before uninstalling SS.
The above is only an outline. Give it some thought and post any questions BEFORE taking action. I also suggest you let this post sit for a few days in case some of the rational is fatally flawed. Lots of smart people in the community who will jump in if my guidance is misdirected (which it has been shown to be on occasion). Don't risk a brick by acting too quickly. Proper preparation is essential for a successful outcome.
Sorry for sounding like your mum ... :angel:
Click to expand...
Click to collapse
Thanks for your input. I am still on the nexus rom, but I am fairly sure that Safestrap was installed while on 13.3.2.4. Is there a way to tell? It is safestrap 3.75, based on twrp 2.7.
I had some time today to work on this, and after looking over the ideas from all of you (thank you very much!) it seemed that my only option is to restore my backup which will get me back to the Nexus 2.0.2 rom. So I did this successfully. Being on Nexus rom, I was then able to use the 13.3.2.4 rollback file to get back to 13.3.0.9. Then ran into trouble......the system update to 13.3.1.0 was not successful. the .bin file was located, but all that happened was a "validating update file" followed by forced reboot. I remain stuck on 13.3.0.9. There are threads discussing editing build.prop but I know I did not have to do this when I first did a rollback a few days ago. Not sure whether to give up or maybe someone has another idea how to get the system to use that .bin file? Should I turn on wifi and wait for an ota or is that too risky, will it jump me all the way up to the most current build? Will it maybe go incrementally?
kbs24 said:
Thanks for your input. I am still on the nexus rom, but I am fairly sure that Safestrap was installed while on 13.3.2.4. Is there a way to tell? It is safestrap 3.75, based on twrp 2.7.
Click to expand...
Click to collapse
(Also as you suggested, I did try flashing the zip 3.1.0 and it did not work, never rebooted successfully. So went back again to 3.0.9.)
kbs24 said:
I had some time today to work on this, and after looking over the ideas from all of you (thank you very much!) it seemed that my only option is to restore my backup which will get me back to the Nexus 2.0.2 rom. So I did this successfully. Being on Nexus rom, I was then able to use the 13.3.2.4 rollback file to get back to 13.3.0.9. Then ran into trouble......the system update to 13.3.1.0 was not successful. the .bin file was located, but all that happened was a "validating update file" followed by forced reboot. I remain stuck on 13.3.0.9. There are threads discussing editing build.prop but I know I did not have to do this when I first did a rollback a few days ago. Not sure whether to give up or maybe someone has another idea how to get the system to use that .bin file? Should I turn on wifi and wait for an ota or is that too risky, will it jump me all the way up to the most current build? Will it maybe go incrementally?
Click to expand...
Click to collapse
Glad you were able to make some progress. I believe you could have flashed twrp from Nexus as I believe you successfully downgraded/upgraded to 13.3.2.3 which would then be the base version when you reininstalled Safestrap. But you found another path which is just fine.
It is possible the 13.3.1.0 is invalid (possibly corrupt). You can use ES File Explorer to validate the MD5 (c49c0363de4d8dfa5c87c1bdb88aa2ba) or download a fresh copy here. You can also upgrade directly to 13.3.2.3 instead of hopscotching through 13.3.1.0 and then applying the 13.2.3.3 bootloader update.
I strongly suggest you NOT connect to WiFi as it is unpredictable if/when you will receive at OTA and what version will be downloaded. Options for getting files onto you device:
- use HDX toolkit to root and block OTA on 13.3.0.9; you can then enable WiFi
- tether your device and drop files into "Internal Storage"
- use 'adb push' to transfer files
You should not need to mess with build.prop as the 3.2.4->3.0.9 rollback should have handed that. It's quite easy to brick your device if you get any of the edits or permissions wrong.

Need help going from Fire OS 4.5.5 to custom ROM

Hey everyone I recently bricked my kindle fire because I was not careful enough about loading a custom ROM. Long story short I followed the instructions for a kindle fire HD7 instead of HDX7. Luckily, Amazon's customer service is WAY better than their operating systems because I was able to return my bricked device and get a new one within 3 days!
That being said, I was wondering if anyone here could provide a good, clear guide, or at least overview of the steps I need to take to install cyanogenmod 11 or some other custom ROM on my kindle fire hdx 7. I have been searching for a decent guide, but haven't been able to find one. Links to actual resources would be even better. I don't mind searching on my own, but I need at least enough information to not screw up my device again. Any help anyone could give me would be very appreciated! Thank you!
and just for reference my device is Kindle Fire HDX 7" THOR currently running FireOS 4.5.5
tropicallazerbeams said:
Hey everyone I recently bricked my kindle fire because I was not careful enough about loading a custom ROM. Long story short I followed the instructions for a kindle fire HD7 instead of HDX7. Luckily, Amazon's customer service is WAY better than their operating systems because I was able to return my bricked device and get a new one within 3 days!
That being said, I was wondering if anyone here could provide a good, clear guide, or at least overview of the steps I need to take to install cyanogenmod 11 or some other custom ROM on my kindle fire hdx 7. I have been searching for a decent guide, but haven't been able to find one. Links to actual resources would be even better. I don't mind searching on my own, but I need at least enough information to not screw up my device again. Any help anyone could give me would be very appreciated! Thank you!
and just for reference my device is Kindle Fire HDX 7" THOR currently running FireOS 4.5.5
Click to expand...
Click to collapse
Amazon support is usually quite responsive. Be aware device replacement for software issues under warranty is a one-time courtesy. You own the replacement (actually a refurb).
High level steps required to prep your device for CM11 (or Nexus v4):
- rollback to FireOS 3.2.8
- upgrade to FireOS 4.5.2
- root with Kingroot or other method
- block OTA (over-the-air updates) - step #1
- install Safestrap v4
- flash a Safestrap v4 compatible rom (currently CM11 or Nexus v4)
The above links are NOT click and execute! There are no step-by-step guides, helpful videos, comprehensive tutorials (despite titles suggesting otherwise), etc. You have to dive into the forums and wade through hundreds of posts (many off-topic/extraneous) to get feel for the detailed procedures. There are some outstanding posts but you'll need to find them. Be aware some steps carry significant risks including a full-on brick from which there is no recovery. Read instructions carefully and be sure to ask questions before taking action.
A few tips:
- download everything you need in advance storing them in uniquely named folders. Some steps mandate your HDX be isolated from any networks. While most items can be retrieved via USB tether it is much easier to simply head for the folder on your HDX when the file is needed.
- understand what USB debug means and know how to enable in FireOS
- install minimal adb + fastboot and learn basic adb commands such as 'install' and 'push'
- ES File Explorer is your friend; alway keep a copy of the apk on your device for installation when needed.
- never perform a 'factory reset' unless specifically advised to do so by someone experienced with HDX devices; many sad tales begin with 'I did a factor reset ...'
Good luck.
Wow, awesome, this was exactly what I was looking for. I just finished installing CM11, the whole process took me about an hour now that I understand what to do. Thanks for the guide, I have a feeling this will help more people than just me. I would add one more step for anyone else looking: When installing your custom ROM, go ahead and install gapps (https://wiki.cyanogenmod.org/w/Google_Apps) so that you can access the google play store from your new ROM.
Here are some decent video guides on how to use Safestrap in case anyone needed help with that:
(https://www.youtube.com/watch?v=K6fPF5UZsWw) General Safestrap usage
(https://www.youtube.com/watch?v=xR0WXCITq2Q) Specifically how to install a custom ROM
So I have just a few more questions now, CM11 can only access about 8 out of the 16GB on the device. Is there a way to expand that memory to the entire 16GB? I should probably just be satisfied with my progress so far, but I honestly would not miss the stock fireOS if it would give me more space.
When/if I need to update CM, do I need to flash each and every update via recovery?
Thanks for all the help so far, you da man!
tropicallazerbeams said:
Wow, awesome, this was exactly what I was looking for. I just finished installing CM11, the whole process took me about an hour now that I understand what to do. Thanks for the guide, I have a feeling this will help more people than just me. I would add one more step for anyone else looking: When installing your custom ROM, go ahead and install gapps (https://wiki.cyanogenmod.org/w/Google_Apps) so that you can access the google play store from your new ROM.
Here are some decent video guides on how to use Safestrap in case anyone needed help with that:
(https://www.youtube.com/watch?v=K6fPF5UZsWw) General Safestrap usage
(https://www.youtube.com/watch?v=xR0WXCITq2Q) Specifically how to install a custom ROM
So I have just a few more questions now, CM11 can only access about 8 out of the 16GB on the device. Is there a way to expand that memory to the entire 16GB? I should probably just be satisfied with my progress so far, but I honestly would not miss the stock fireOS if it would give me more space.
When/if I need to update CM, do I need to flash each and every update via recovery?
Thanks for all the help so far, you da man!
Click to expand...
Click to collapse
Based on a few reports CM11 works best in the stock slot. Seems WiFi won't enter a low power state in secondary slots resulting in excessive battery drain. Thoughts:
- backup up stock slot in SS recovery. Save archive off-device.
- backup cm11 slot, switch to slot slot and restore
- after stock slot w/cm11 confirmed ok delete secondary slot(s)
You'll have access to the full 16GB with ability to restore FireOS if needed.
---------- Post added at 08:00 AM ---------- Previous post was at 07:55 AM ----------
tropicallazerbeams said:
Here are some decent video guides on how to use Safestrap in case anyone needed help with that:
(https://www.youtube.com/watch?v=K6fPF5UZsWw) General Safestrap usage
(https://www.youtube.com/watch?v=xR0WXCITq2Q) Specifically how to install a custom ROM
Click to expand...
Click to collapse
Thanks - nice find.
@ggow - possible add to SS v4 OP or separate thread for newbies.
tropicallazerbeams said:
Wow, awesome, this was exactly what I was looking for. I just finished installing CM11, the whole process took me about an hour now that I understand what to do. Thanks for the guide, I have a feeling this will help more people than just me. I would add one more step for anyone else looking: When installing your custom ROM, go ahead and install gapps (https://wiki.cyanogenmod.org/w/Google_Apps) so that you can access the google play store from your new ROM.
Here are some decent video guides on how to use Safestrap in case anyone needed help with that:
(https://www.youtube.com/watch?v=K6fPF5UZsWw) General Safestrap usage
(https://www.youtube.com/watch?v=xR0WXCITq2Q) Specifically how to install a custom ROM
So I have just a few more questions now, CM11 can only access about 8 out of the 16GB on the device. Is there a way to expand that memory to the entire 16GB? I should probably just be satisfied with my progress so far, but I honestly would not miss the stock fireOS if it would give me more space.
When/if I need to update CM, do I need to flash each and every update via recovery?
Thanks for all the help so far, you da man!
Click to expand...
Click to collapse
Davey126 said:
Based on a few reports CM11 works best in the stock slot. Seems WiFi won't enter a low power state in secondary slots resulting in excessive battery drain. Thoughts:
- backup up stock slot in SS recovery. Save archive off-device.
- backup cm11 slot, switch to slot slot and restore
- after stock slot w/cm11 confirmed ok delete secondary slot(s)
You'll have access to the full 16GB with ability to restore FireOS if needed.
---------- Post added at 08:00 AM ---------- Previous post was at 07:55 AM ----------
Thanks - nice find.
@ggow - possible add to SS v4 OP or separate thread for newbies.
Click to expand...
Click to collapse
- Added links to the OP of Safestrap 4.0.1 thread
Okay I ran into one more problem. I followed your instructions on switching ROM-1 to ROM-STOCK, but when I was restoring the contents of ROM-1 to ROM-STOCK, the procedure failed. It didn't say why, it just showed up in red text saying "failed". So it rebooted, but since ROM-STOCK was selected and a restoration had just failed on it, nothing happens when I boot up. It is stuck on the grey kindle fire logo. Is there a way that I can get into safestrap?
tropicallazerbeams said:
Okay I ran into one more problem. I followed your instructions on switching ROM-1 to ROM-STOCK, but when I was restoring the contents of ROM-1 to ROM-STOCK, the procedure failed. It didn't say why, it just showed up in red text saying "failed". So it rebooted, but since ROM-STOCK was selected and a restoration had just failed on it, nothing happens when I boot up. It is stuck on the grey kindle fire logo. Is there a way that I can get into safestrap?
Click to expand...
Click to collapse
Well crap - that's not good. The symptoms suggest Safestrap v4 may have been damaged. I assume you tried waiting, rebooted multiple times, powered off/on, etc. Is there any indication Safestrap (or any environment beyond the grey boot screen) is present?
hehe, looks like I may have bricked my 2nd Fire....Tried waiting, rebooting and everything, still broke..... So Safestrap never really appeared to be damaged when it was rebooting after the installation failure. If I had to guess, I would say that ROM-1 and safestrap are totally fine, the only problem is that I can't access them because ROM-STOCK is selected. So what if I got my hands on one of those factory fastboot cables, do you think I could boot straight into fastboot, change my boot options to boot into recovery or my ROM-1?
tropicallazerbeams said:
hehe, looks like I may have bricked my 2nd Fire....Tried waiting, rebooting and everything, still broke..... So Safestrap never really appeared to be damaged when it was rebooting after the installation failure. If I had to guess, I would say that ROM-1 and safestrap are totally fine, the only problem is that I can't access them because ROM-STOCK is selected. So what if I got my hands on one of those factory fastboot cables, do you think I could boot straight into fastboot, change my boot options to boot into recovery or my ROM-1?
Click to expand...
Click to collapse
Sorry, with locked bootloader fastboot mode on HDX is practically useless, factory cable won't help you. Did you by any chance when you created ROM-1 slot changed data partition to bigger size? That would explain why restoration to STOCK slot failed. If you can't enter safestrap recovery at boot time, that means it IS damaged.
Yeah I did change the partition size when I created ROM-1. Thanks for all the help fellas, but it looks like I am right back where I started. Good thing my tablet was a gift
Im going to follow the process since I have at 4.5.2 rooted before.
How do I create the rom-1 to later install on stock without brick?
Or I should install directly to stock without doing rom-1?
alberto1414 said:
Im going to follow the process since I have at 4.5.2 rooted before.
How do I create the rom-1 to later install on stock without brick?
Or I should install directly to stock without doing rom-1?
Click to expand...
Click to collapse
Review the video in the Safestrap v4 OP for general usage info. For a variety of reasons I recommend only using the stock slot in SS v4. You should create a backup of the stock slot containing FireOS before flashing a new rom. Keep a copy off-device.
http://forum.xda-developers.com/showthread.php?p=61410598
Davey126 said:
Review the video in the Safestrap v4 OP for general usage info. For a variety of reasons I recommend only using the stock slot in SS v4. You should create a backup of the stock slot containing FireOS before flashing a new rom. Keep a copy off-device.
http://forum.xda-developers.com/showthread.php?p=61410598
Click to expand...
Click to collapse
When being on safestrap after back up the stock slot.
do I have to do anything before flashing the new rom? like some wipes os what?
Can help with steps?
1. wipe? what to wipe?
2. flash?
3. factory reset?
I saw the instructions on the hdx nexus v4. but it doesnt say anything before flash. I think they talk about a new rom slot. but mine has the fire os.
alberto1414 said:
When being on safestrap after back up the stock slot.
do I have to do anything before flashing the new rom? like some wipes os what?
Can help with steps?
1. wipe? what to wipe?
2. flash?
3. factory reset?
I saw the instructions on the hdx nexus v4. but it doesnt say anything before flash. I think they talk about a new rom slot. but mine has the fire os.
Click to expand...
Click to collapse
I suggest you do some additional reading to gain confidence in the process. Briefly:
- backup the stock rom slot before taking any other action (use backup option within Safestrap v4)
- nothing needs to be done before flashing a new rom (Nexus v4 or CM11 only)
- each rom has its own requirements but in general performing a factory reset from within Safestrap is recommended. This is NOT the same thing as doing a factory reset from the Kindle recovery menu. Never to that unless instructed by an experienced member of the community.
While others may be willing to do so I will not provide a 'step-by-step' as all the information you need is one of the following threads. Reading and gaining confidence the the best way to avoid a mistake that could cripple your device. Community members are happy to answer specific questions as you become familiar with the details.
Safestrap v4
Nexus v4
CM11 for HDX (Safestrap build)
Read through posts now, thanks for the help
m1kemyer5 said:
Read through posts now, thanks for the help
Click to expand...
Click to collapse
Just one note: if it says factory reset in the installation notes it's the standard wipe only, i.e. you open the wipe menu, and swipe to wipe - do NOT go into advanced wipe!
Now it so happens @ggow implemented a System-wipe-protection in Safestrap v4 to prevent more bricked devices, but usually you should NOT have any reason to open the advanced wipe menu. Wiping System in Safestrap v3.7x is lethal (doesn't concern Safestrap v4 users, but can't be mentioned often enough).
Hi to all looking to have a custom rom, I recommend CM11 because it gives you a safe try and the wifi works.
Many new people trying nexus v4 are stuck.
If you like me, new to these things go with CM11.
I started with fire os 4.5.5 and downgrade to 3.2.8 to later upgrade to 4.5.2 , root and safestrap 4. create a new rom slot with default(no modification on size). to later install there the CM11 and everything without touching the stock slot of fire os 4.5.2.
If any one wants my personal experience, simple PM I'll be glad to help. just in this particular situation I just explained.
Thanks to the dev that made this posible.
alberto1414 said:
Hi to all looking to have a custom rom, I recommend CM11 because it gives you a safe try and the wifi works.
Many new people trying nexus v4 are stuck.
If you like me, new to these things go with CM11.
I started with fire os 4.5.5 and downgrade to 3.2.8 to later upgrade to 4.5.2 , root and safestrap 4. create a new rom slot with default(no modification on size). to later install there the CM11 and everything without touching the stock slot of fire os 4.5.2.
If any one wants my personal experience, simple PM I'll be glad to help. just in this particular situation I just explained.
Thanks to the dev that made this posible.
Click to expand...
Click to collapse
Quick clarifications to @alberto1414's comments:
- both Nexus v4 and CM11 run equally well in the stock (default) slot of Safestrap v4. There is no significant difference in stability or performance.
- creating one or more secondary slots allows multiple roms to reside on the device at the same time; a reboot is required to switch between roms.
- CM11 can function in a secondary slot; Nexus v4 and FireOS v4 can not as WiFi only works in the stock slot.
- flashing either Nexus v4 or CM11 to the stock slot overwrites FireOS; however this is not a problem as FireOS v4.5.2 can be restored at a later time either from a backup created by the user or as a 'fresh' install using a custom version available here.
- individuals who flashed Nexus v4 to the stock slot are not "stuck"; they can restore or reinstall FireOS 4.5.2 as outlined above.
- creating/using a secondary slot in Safestrap v4 significantly increases battery consumption. Root cause has yet to be identified but it appears the device never enters 'deep sleep' when secondary slots are in use.
- permanent device storage is shared across slots. This can become a problem on 16GB or 32GB devices. In contrast, all available storage is available to the stock slot if secondary slots are not created.
- Safestrap compatible roms are created/tested in the stock slot. Functionality and stability in secondary slots is not assured.

Safest way to root KFHDX 7" 2013 (thor)?

I do not want to brick this device. Could someone give/list me steps that would root it using the 'safest' (aka hardest to mess up), install TWRP, and maybe then install a good ROM (CM13?)
Also, fire os 4.5.5
ADB works.
GameExpertNetwork said:
I do not want to brick this device. Could someone give/list me steps that would root it using the 'safest' (aka hardest to mess up), install TWRP, and maybe then install a good ROM (CM13?)
Also, fire os 4.5.5
ADB works.
Click to expand...
Click to collapse
Starting from 4.5.5 you can not install 'native' twrp or unlock the bootloader. Nor is their any path to allow this due due anti-rollback protections. Your safest path (which still holds risks) is to rollback to 3.2.8, upgrade to 4.5.2, root, install Safestrap v4 followed by one of two kitkat based roms: Nexus v4 or CM11. At present you can not install CM12 (lollipop) or CM13 (marshmallow) under Safestrap v4.
There are many posts detailing the above process; a few recent ones can be found here, here and here. Scroll through the entire thread for other examples along with a diary of user experiences.
Key points:
- be sure to keep wifi off (airplane/flight mode engaged) while passing through 3.2.8 and 4.5.2 until OTA is block. Receiving an update on 3.2.8 will brick your device. The consequences on 4.5.2 are less severe but still unpleasant.
- suggest downloading everything you need to your device in advance; put each component into a separate folder to be extracted/renamed as needed
- read, read and read some more before attempting anything. Ask questions as needed; never guess or assume. Make sure you know the expected outcome, potential consequences and fallback options for each step before executing
- Kindles in general and HDX models in particular are unforgiving relative to other devices. Tough to mod, easy to brick, nearly impossible to recover. If not 100% confident in your abilities enjoy your device as is (or be mentally prepared to toss it in the trash).
Davey126 said:
Starting from 4.5.5 you can not install 'native' twrp or unlock the bootloader. Nor is their any path to allow this due due anti-rollback protections. Your safest path (which still holds risks) is to rollback to 3.2.8, upgrade to 4.5.2, root, install Safestrap v4 followed by one of two kitkat based roms: Nexus v4 or CM11. At present you can not install CM12 (lollipop) or CM13 (marshmallow) under Safestrap v4.
There are many posts detailing the above process; a few recent ones can be found here, here and here. Scroll through the entire thread for other examples along with a diary of user experiences.
Key points:
- be sure to keep wifi off (airplane/flight mode engaged) while passing through 3.2.8 and 4.5.2 until OTA is block. Receiving an update on 3.2.8 will brick your device. The consequences on 4.5.2 are less severe but still unpleasant.
- suggest downloading everything you need to your device in advance; put each component into a separate folder to be extracted/renamed as needed
- read, read and read some more before attempting anything. Ask questions as needed; never guess or assume. Make sure you know the expected outcome, potential consequences and fallback options for each step before executing
- Kindles in general and HDX models in particular are unforgiving relative to other devices. Tough to mod, easy to brick, nearly impossible to recover. If not 100% confident in your abilities enjoy your device as is (or be mentally prepared to toss it in the trash).
Click to expand...
Click to collapse
So, from my assumptions, there are 2 major ways to mess up
1. OTA update.
2. Low battery
And IF I ever do this, I will click the 'forget' button on the wifi network AND set it into airplane mode, and also have it fully charged overnight and STILL plugged in,
What are some other risks that I can try to "eliminate"
GameExpertNetwork said:
So, from my assumptions, there are 2 major ways to mess up
1. OTA update.
2. Low battery
And IF I ever do this, I will click the 'forget' button on the wifi network AND set it into airplane mode, and also have it fully charged overnight and STILL plugged in,
What are some other risks that I can try to "eliminate"
Click to expand...
Click to collapse
There are risks throughout the process - a comprehensive detailing would never be complete. Your best defense is carefully reading instructions, understanding what is suppose to happen at each step (expected outcomes) and avoiding 'gotchas' which are well documented. Most disasters are the result of poor preparation, impatience and experimentation. Like anything else the work is relatively easy with manageable risk if do your homework. Keep reading until comfortable.
Add to your list:
- using files obtained from sources other than listed in the relevant threads (eg: stock 3.2.8 vs rollback file)
- performing a native factory reset (from the stock recovery menu) unless recommended by an experienced contributor
- performing a native factory reset after Safestrap v4 is installed (instant brick)
- activating/using secondary slots in Safestrap v4 and then attempting to swap backup images between slots
- flashing unsupported roms in Safestrap v4 (CM12/CM13, stock FireOS, etc)
- manually twiddling file permissions or messing with build.prop after obtaining root (there's an app for that if needed)
Davey126 said:
There are risks throughout the process - a comprehensive detailing would never be complete. Your best defense is carefully reading instructions, understanding what is suppose to happen at each step (expected outcomes) and avoiding 'gotchas' which are well documented. Most disasters are the result of poor preparation, impatience and experimentation. Like anything else the work is relatively easy with manageable risk if do your homework. Keep reading until comfortable.
Add to your list:
- using files obtained from sources other than listed in the relevant threads (eg: stock 3.2.8 vs rollback file)
- performing a native factory reset (from the stock recovery menu) unless recommended by an experienced contributor
- performing a native factory reset after Safestrap v4 is installed (instant brick)
- activating/using secondary slots in Safestrap v4 and then attempting to swap backup images between slots
- flashing unsupported roms in Safestrap v4 (CM12/CM13, stock FireOS, etc)
- manually twiddling file permissions or messing with build.prop after obtaining root (there's an app for that if needed)
Click to expand...
Click to collapse
I bricked a nextbook tablet with that last way (build.prop messing)
Will factory resetting from a custom ROM brick my device?
And don't worry, I won't be flashing stock fire OS.
Also, sorry if i'm asking too much, but since I don't see a place where the info is all together in one thread and not links to many others, could you either link me to a step-by-step tutorial or list them out yourself? Thank you
GameExpertNetwork said:
I bricked a nextbook tablet with that last way (build.prop messing)
Will factory resetting from a custom ROM brick my device?
And don't worry, I won't be flashing stock fire OS.
Also, sorry if i'm asking too much, but since I don't see a place where the info is all together in one thread and not links to many others, could you either link me to a step-by-step tutorial or list them out yourself? Thank you
Click to expand...
Click to collapse
As previously mentioned never do a factory reset from the native Kindle Fire recovery menu with Safestrap v4 installed. It will destroy the Safestrap environment and everything running within it regardless of rom.
Post #3 contains several links that should prove helpful. You'll need to do some reading.

Categories

Resources