"Unfortunately, AT&T Ready2Go has stopped." Is stuck looping on my phone. - AT&T HTC One (M8)

"Unfortunately, AT&T Ready2Go has stopped." Is stuck looping on my phone.
About a year ago I rooted my phone, following these directions. (I can't yet post a link, but the first option on google when searching "how to root m8" is the site, htconeroot.com, that I used.)
This morning I noticed that my phone was not vibrating anymore no matter if I restarted the phone or what settings were applied. So I checked online to see if there was a fix, and a factory reset was recommended.
So when I got back from work today, I thought I had successfully uninstalled the root using SuperSU. Then I performed a factory reset. My phone then went into TWRP recovery which was alarming. So I rebooted the system from TWRP , then the message in the title kept popping up over and over again, so I am in a bit of a pickle. I can message and call at the moment but that is about it.
I'm thinking the problem is similar to this one someone had on a note 3, except I was trying to factory reset rather than update. http://forum.xda-developers.com/showthread.php?t=2663120
Has this happened to anyone else, and do you have any suggested fixes for resetting this phone???
Thanks in advance.

I've seen a number of cases on the M8 forums of various processes stopping with message "XXX has stopped" after a factory reset. Not sure what is causing this. But there are a variety of ways to recover.
Since you have TWRP, you can try to restore a TWRP backup of your own (if you made one) or install a stockish ROM. Those methods may be helpful if you want to retain or retrieve any personal data.
Otherwise, relock the bootloader and RUU back to full stock (RUU will wipe the phone).

redpoint73 said:
Otherwise, relock the bootloader and RUU back to full stock (RUU will wipe the phone).
Click to expand...
Click to collapse
Honestly I'd be fine returning to full stock, at least for the time being, to see if the vibration problem would fix itself. But do I need to be S-OFF for RUU?

eaflook said:
But do I need to be S-OFF for RUU?
Click to expand...
Click to collapse
No, and I wish folks would stop saying you need s-off to RUU (not you, but I assume you got this notion from another post/thread).
You can run the an RUU made for the AT&T M8, as long as you aren't "downgrading" to a previous version (such as Lollipop to Kitkat). For that, you need s-off; or to change the CID and run another carrier version RUU.
You do need to relock the bootloader to run RUU while s-on, with command: fastboot oem lock
Are you currently on LP or MM (what does it say for OS number on the bootloader screen)?

redpoint73 said:
No, and I wish folks would stop saying you need s-off to RUU (not you, but I assume you got this notion from another post/thread).
You can run the an RUU made for the AT&T M8, as long as you aren't "downgrading" to a previous version (such as Lollipop to Kitkat). For that, you need s-off; or to change the CID and run another carrier version RUU.
You do need to relock the bootloader to run RUU while s-on, with command: fastboot oem lock
Are you currently on LP or MM (what does it say for OS number on the bootloader screen)?
Click to expand...
Click to collapse
Um... the OS line on the bootloader screen looks blank, unless I'm looking in the wrong place.
Should I do this? http://forum.xda-developers.com/htc-one-m8/help/guide-how-to-solve-soft-brick-phone-t2824193

eaflook said:
Um... the OS line on the bootloader screen looks blank, unless I'm looking in the wrong place.
Click to expand...
Click to collapse
No, you're looking in the right place. Its somewhat common for OS number to be blank, its a known bug in older TWRP versions that it deletes the OS number.
What does it say for hboot number and radio number?
If the phone still on the stock ROM you originally rooted on? If so, is it Lollipop, Kitkat, etc.?
eaflook said:
U
Should I do this? http://forum.xda-developers.com/htc-one-m8/help/guide-how-to-solve-soft-brick-phone-t2824193
Click to expand...
Click to collapse
You can do that. All that "guide" describes is one way to get a ROM on an SD and flash it, which is one of the options I already suggested in Post #2 above.
But what ROM will work, somewhat depends on the info I requested above.

redpoint73 said:
What does it say for hboot number and radio number?
Click to expand...
Click to collapse
hboot number-3.19.0.0000
radio [email protected]
redpoint73 said:
If the phone still on the stock ROM you originally rooted on? If so, is it Lollipop, Kitkat, etc.?
Click to expand...
Click to collapse
Yes it is still on the stock root ROM. I am running Lollipop 5.0.2.

eaflook said:
hboot number-3.19.0.0000
radio [email protected]
Yes it is still on the stock root ROM. I am running Lollipop 5.0.2.
Click to expand...
Click to collapse
You should be fine flashing most any ROM on the AT&T or "international" M8 development forums. Just avoid other dev sections for variants, such as the Sprint or Verizon dev sections.
Before flashing a ROM, you may want to update your TWRP version to 3.0.whatever.
Although I have to admit, I'm still on TWRP 2.8.4, and its worked fine flashing LP and MM custom ROMs. Any older than 2.8.something may cause issues.
Alternately, relock bootloader and run RUU 4.28.502.2 (Lollipop). If you want to run the Marshmallow RUU (6.20.502.5), you'll need to flash the MM firmware first, then RUU. Link that describes that process, as well as all ATT RUUs is on my Index thread: http://forum.xda-developers.com/showthread.php?t=2751432

redpoint73 said:
You should be fine flashing most any ROM on the AT&T or "international" M8 development forums. Just avoid other dev sections for variants, such as the Sprint or Verizon dev sections.
Before flashing a ROM, you may want to update your TWRP version to 3.0.whatever.
Although I have to admit, I'm still on TWRP 2.8.4, and its worked fine flashing LP and MM custom ROMs. Any older than 2.8.something may cause issues.
Alternately, relock bootloader and run RUU 4.28.502.2 (Lollipop). If you want to run the Marshmallow RUU (6.20.502.5), you'll need to flash the MM firmware first, then RUU. Link that describes that process, as well as all ATT RUUs is on my Index thread: http://forum.xda-developers.com/showthread.php?t=2751432
Click to expand...
Click to collapse
Do you know how I might update TWRP from 2.7.0.2?-----Nevermind, I got it.

eaflook said:
Do you know how I might update TWRP from 2.7.0.2?-----Nevermind, I got it.
Click to expand...
Click to collapse
Good practice is to post what you did (or going to do) for the benefit of others that may have the same question; or so we can verify you are on the right track.
In case others may have the same question (or you get stuck again), all TWRP versions, and instructions (recommend install with fastboot method) are here: https://twrp.me/devices/htconem8gsm.html

Related

[Q] Question about CID and GPE

Hi All,
So need some help. I have an ATT m8 that I did a GPE conversation following the tutorial at
http://sakitechonline.com/fully-convert-your-htc-one-m8-to-google-play-edition-w-ota-updates/
as well as a youtube video.
So there's a section about CID's and in the tutorial link, it says if my CID matches one of the ones listed, I can skip down to step #6 and install the GPE (which it did match, so I didn't change my CID to GOOGL001.) My question is, will I have issues with future OTA's? If so, do I have to start from scratch to change my CID, or can I do it as my phone currently sits right now? Also, if I do it as my phone currently sits, will it wipe my phone? Lastly, how do I go about changing my CID at this time? I know there are a few tutorials out there, but I'm not sure if I can follow them since most of the instructions to change CID's are midway through a tutorial and I'm already converted. I just don't want to brick my phone, and I've had bad luck and what not.
Any help would be great as I'm now using this phone as my primary and I don't wan't to have issues when android L finally decides to roll out. Thank you in advance!
jm0327 said:
Hi All,
So need some help. I have an ATT m8 that I did a GPE conversation following the tutorial at
http://sakitechonline.com/fully-convert-your-htc-one-m8-to-google-play-edition-w-ota-updates/
as well as a youtube video.
So there's a section about CID's and in the tutorial link, it says if my CID matches one of the ones listed, I can skip down to step #6 and install the GPE (which it did match, so I didn't change my CID to GOOGL001.) My question is, will I have issues with future OTA's? If so, do I have to start from scratch to change my CID, or can I do it as my phone currently sits right now? Also, if I do it as my phone currently sits, will it wipe my phone? Lastly, how do I go about changing my CID at this time? I know there are a few tutorials out there, but I'm not sure if I can follow them since most of the instructions to change CID's are midway through a tutorial and I'm already converted. I just don't want to brick my phone, and I've had bad luck and what not.
Any help would be great as I'm now using this phone as my primary and I don't wan't to have issues when android L finally decides to roll out. Thank you in advance!
Click to expand...
Click to collapse
So I ended up changing my CID to GOOGL001 from CWW__1 (or something). Is there any "prep" work I need to do to my phone besides having S-OFF before changing my CID so as not to brick it later or have issues with OTA's? Again, just don't want issues down the line that I may not foresee and wasn't sure if I can just freely change my CID without doing anything beforehand.
jm0327 said:
So I ended up changing my CID to GOOGL001 from CWW__1 (or something). Is there any "prep" work I need to do to my phone besides having S-OFF before changing my CID so as not to brick it later or have issues with OTA's? Again, just don't want issues down the line that I may not foresee and wasn't sure if I can just freely change my CID without doing anything beforehand.
Click to expand...
Click to collapse
Dude, fire is going to rain down from the skies onto your phone. JK, if I remember correctly, the only thing I did was make sure that I had the GPE recovery installed and relock bootloader and got OTA's just fine. I am thinking about playing with the GPE again too.
hack14u said:
Dude, fire is going to rain down from the skies onto your phone. JK, if I remember correctly, the only thing I did was make sure that I had the GPE recovery installed and relock bootloader and got OTA's just fine. I am thinking about playing with the GPE again too.
Click to expand...
Click to collapse
haha,, i wouldn't be surprised if my phone spontaneously combusted. Hmm, I haven't read anything about relocating the boot loader to make it work with OTA's. I only remember the CID thing. Thanks for the tip, I'll look into it.
jm0327 said:
Hmm, I haven't read anything about relocating the boot loader to make it work with OTA's. I only remember the CID thing.
Click to expand...
Click to collapse
That's because its not correct. You don't need to relock the bootloader to get or install OTAs. You do need stock recovery, and all system files need to be intact (if any are modified/deleted/frozen by root, they need to be restored to stock condition).
redpoint73 said:
That's because its not correct. You don't need to relock the bootloader to get or install OTAs. You do need stock recovery, and all system files need to be intact (if any are modified/deleted/frozen by root, they need to be restored to stock condition).
Click to expand...
Click to collapse
Sounds like I'm good to go now. I used the Stock Non-Rooted 4.4.4 2.12.1700.1 RUU Zip. Thanks for the heads up!

[Q] CRITICAL: Messed up device badly (not hard bricked)

I was trying to flash my AT&T HTC One M8 to either T-Mobile or Google Play Edition. I rooted, unlocked my bootloader, got S-Off, but my firmware/hboot was outdated (3.16). I tried to flash CM12 instead, and here's where I messed up. I tried to flash the AT&T stock RUU ZIP without relocking the bootloader and now my HBOOT says "Software status: Modified". I'm running CM12, and all RUU exe don't detect my phone. I just want to convert my M8 to the T-Mobile or GPE. Any help is GREATLY appreciated,
ad4mydev said:
I was trying to flash my AT&T HTC One M8 to either T-Mobile or Google Play Edition. I rooted, unlocked my bootloader, got S-Off, but my firmware/hboot was outdated (3.16). I tried to flash CM12 instead, and here's where I messed up. I tried to flash the AT&T stock RUU ZIP without relocking the bootloader and now my HBOOT says "Software status: Modified". I'm running CM12, and all RUU exe don't detect my phone. I just want to convert my M8 to the T-Mobile or GPE. Any help is GREATLY appreciated,
Click to expand...
Click to collapse
The RUU isn't recognizing your phone because you have a non HTC rom on your phone. Just flash one of the various stock roms from this forum and then you can use the RUU. Secondly, you don't have to re-lock your bootloader if you are s-off to run the RUU.
Fixing the Device
ad4mydev said:
I was trying to flash my AT&T HTC One M8 to either T-Mobile or Google Play Edition. I rooted, unlocked my bootloader, got S-Off, but my firmware/hboot was outdated (3.16). I tried to flash CM12 instead, and here's where I messed up. I tried to flash the AT&T stock RUU ZIP without relocking the bootloader and now my HBOOT says "Software status: Modified". I'm running CM12, and all RUU exe don't detect my phone. I just want to convert my M8 to the T-Mobile or GPE. Any help is GREATLY appreciated,
Click to expand...
Click to collapse
<br />
Hi, Since you do have a working device with a rom on it, all you need to do is find a T-Mobile Rom that is compatible with the At&t version. Make sure this is a stock rom because an accidental flash can hard brick your device. Thanks.
johnnyutah22 said:
The RUU isn't recognizing your phone because you have a non HTC rom on your phone. Just flash one of the various stock roms from this forum and then you can use the RUU. Secondly, you don't have to re-lock your bootloader if you are s-off to run the RUU.
Click to expand...
Click to collapse
AFAIK, the ROM doesn't need to be stock to RUU, only to OTA. There doesn't even need to be a ROM on the device to RUU.
Also, if there was something wrong with the phone's configuration, an error message would have been the result; not failing to connect to the phone.
If the RUU isn't recognizing the device at all, there is probably a fundamental USB connectivity issues. OP should try to :
- Make sure phone is booted into OS, or into bootloader-fastboot mode to RUU. "Regular" bootloader mode or recovery won't work.
- Try another USB cable or port, even another computer if possible (in particular USB 3.0 doesn't play well with RUUs).
- Uninstall and re-install HTC Sync and Drivers.
Also, keep in mind that in order to run an RUU that is different from your version (which is the case for T-Mob RUU or GPE RUU on an AT&T device) you need to change the CID and MID to correspond to the RUU. This won't cause failure to connect, but will cause the RUU to fail with an error message.
---------- Post added at 09:36 AM ---------- Previous post was at 09:31 AM ----------
kps2501 said:
Hi, Since you do have a working device with a rom on it, all you need to do is find a T-Mobile Rom that is compatible with the At&t version.
Click to expand...
Click to collapse
The AT&T variant won't support all 3G (HSPA) and 4G (LTE) bands used by T-Mobile if you just flash a T-Mob ROM. You need to install the T-Mob firmware to enable full T-Mob band support; which the RUU does.
Also, the RUU will "fully convert" to the T-Mob or GPE versions; and allow official OTA updates for that version, if that is what the OP is looking for. But the band support is the more important factor.
kps2501 said:
Make sure this is a stock rom because an accidental flash can hard brick your device.
Click to expand...
Click to collapse
Not sure what is trying to be conveyed here. No ROMs (stock or custom) meant for the "GSM" versions of the M8 (meaning stay away from Sprint and Verizon specific ROMs) will brick your phone.
Flashing a ROM meant for another device can brick your phone (and may be possible with s-off), but again, that isn't what you stated (although may be what you meant)
Thanks to all.
I ended up figuring it out using the steps below.
•ADB sideload CM12 via TWRP
•Once booted started USB debugging
•Changed the MID to the GPe (using ADB shell)
•Changed CID from CWS__001 to GOOGL001
•Rebooted into bootloader (fastboot oem rebootRUU)
•Found the RUU zip (can't post the link- too new)
•Pushed it to the phone (fastboot flash zip)
•Failed
•Flashed again
•Success
Sent from my HTC One_M8 using XDA Free mobile app

Returning M8 with S-ON, TWRP and modified kernel to Stock (has Skydragon 9.0)

Please bear with me since I'm not too experienced on this and did research on XDA to the best I could before asking. I'm planning on returning my device to stock, but I'm worried I might brick it. I'm currently running the Skydragon 9.0 rom (http://forum.xda-developers.com/att-htc-one-m8/development/rom-sd-4-0-sense7-port-sdkernel-t3062367) and toggled on quite a lot of things. Mainly, I remember allowing it to overwrite my current kernel.
My device has S-ON from what I saw on HBOOT, is using the Skydragon custom kernel, and I'm using TWRP custom recovery. I still have the RUU I downloaded from AT&T to return my device to stock 5.0.2 firmware. My question is, shall I just run the RUU and it will all be back to stock? Should I flash the stock recovery first? Should I relock the bootloader first? and if any of those are true, in what order?
The guide which seemed the most similar to me was this one http://forum.xda-developers.com/showthread.php?t=2751011 but that required S-OFF which I don't have and don't think it's a good thing to have. Could anyone point me in the right direciton? thanks!
First of all, what is your intent in returning to stock: to sell or give away the phone? Or return for warranty service?
sarxion said:
Please bear with me since I'm not too experienced on this and did research on XDA to the best I could before asking. I'm planning on returning my device to stock, but I'm worried I might brick it.
Click to expand...
Click to collapse
You won't brick the phone with s-on. You just won't.
You might screw something up, and temporarily render the phone unable to boot. But that can easily be fixed with the right knowledge; and that is not a brick.
sarxion said:
I'm currently running the Skydragon 9.0 rom (http://forum.xda-developers.com/att-htc-one-m8/development/rom-sd-4-0-sense7-port-sdkernel-t3062367) and toggled on quite a lot of things. Mainly, I remember allowing it to overwrite my current kernel.
Click to expand...
Click to collapse
On this device, flashing a custom ROM always overwrites the kernel. What you selected when you flashed the ROM, is to flash the custom SD kernel instead of flashing the "stock" HTC kernel that came with the ROM base (that Skydragon 9 is based on).
None of that matters, once you return to stock, the custom ROM (including kernel) and any other settings, tweaks, etc. will be returned to their "stock" condition.
sarxion said:
My question is, shall I just run the RUU and it will all be back to stock?
Click to expand...
Click to collapse
Will "all" be back to stock? No. The bootloader will still say RELOCKED instead of the original LOCKED condition. You need s-off to make it say LOCKED.
Also bear in mind that HTC has a record of you unlocking the bootloader, if you did it via HTCDev.com (which is most likely the case). Nothing will change that fact, and it should be disclosed to potential buyers if selling/trading the phone (that it was bootloader unlocked and modded, then returned to near-stock condition).
But everything else will be back to stock after RUU: Stock ROM, stock kernel, stock recovery, and the user data will be wiped.
sarxion said:
Should I flash the stock recovery first? Should I relock the bootloader first? and if any of those are true, in what order?
Click to expand...
Click to collapse
No need to flash stock recovery.
You will need to relock the bootloader to RUU.
Backup (move) anything you want to keep (personal photos, etc.) to your computer, etc. before RUU, as RUU will wipe the phone.
sarxion said:
The guide which seemed the most similar to me was this one http://forum.xda-developers.com/showthread.php?t=2751011 but that required S-OFF which I don't have and don't think it's a good thing to have.
Click to expand...
Click to collapse
As I've mentioned, s-off is only needed if you want to return the phone to LOCKED (instead of RELOCKED). I will agree its probably not necessary to spend $25 for s-off just to do that.
Further, the guide is very old (May 2014 - right after the phone was released) and probably before any RUU was available. It follows a much more complicated path to "return to stock" and needlessly so.
Just relock the bootloader and run the RUU, is my recommendation.
redpoint73 said:
First of all, what is your intent in returning to stock: to sell or give away the phone? Or return for warranty service?
You won't brick the phone with s-on. You just won't.
You might screw something up, and temporarily render the phone unable to boot. But that can easily be fixed with the right knowledge; and that is not a brick.
On this device, flashing a custom ROM always overwrites the kernel. What you selected when you flashed the ROM, is to flash the custom SD kernel instead of flashing the "stock" HTC kernel that came with the ROM base (that Skydragon 9 is based on).
None of that matters, once you return to stock, the custom ROM (including kernel) and any other settings, tweaks, etc. will be returned to their "stock" condition.
Will "all" be back to stock? No. The bootloader will still say RELOCKED instead of the original LOCKED condition. You need s-off to make it say LOCKED.
Also bear in mind that HTC has a record of you unlocking the bootloader, if you did it via HTCDev.com (which is most likely the case). Nothing will change that fact, and it should be disclosed to potential buyers if selling/trading the phone (that it was bootloader unlocked and modded, then returned to near-stock condition).
But everything else will be back to stock after RUU: Stock ROM, stock kernel, stock recovery, and the user data will be wiped.
No need to flash stock recovery.
You will need to relock the bootloader to RUU.
Backup (move) anything you want to keep (personal photos, etc.) to your computer, etc. before RUU, as RUU will wipe the phone.
As I've mentioned, s-off is only needed if you want to return the phone to LOCKED (instead of RELOCKED). I will agree its probably not necessary to spend $25 for s-off just to do that.
Further, the guide is very old (May 2014 - right after the phone was released) and probably before any RUU was available. It follows a much more complicated path to "return to stock" and needlessly so.
Just relock the bootloader and run the RUU, is my recommendation.
Click to expand...
Click to collapse
Thank you very much for your quick answer. I'm returning it to stock firmware to sell the device. Is it safe to lock the bootloader while Skydragon is on my device? and after that, just run the AT&T RUU and I'm done, right?
Also, do you by any chance have any resource on how to relock the bootloader? I've searched for guides on this but I the guides I find don't look very trustworthy, or don't apply, such as this one that requires S-OFF http://forum.xda-developers.com/showthread.php?t=2708571
sarxion said:
Thank you very much for your quick answer. I'm returning it to stock firmware to sell the device. Is it safe to lock the bootloader while Skydragon is on my device? and after that, just run the AT&T RUU and I'm done, right?
Click to expand...
Click to collapse
Correct. It doesn't matter what ROM is on the device when you relock the bootloader. The phone will be rendered unable to boot (may even wipe OS) when you relock.
sarxion said:
Also, do you by any chance have any resource on how to relock the bootloader? I've searched for guides on this but I the guides I find don't look very trustworthy
Click to expand...
Click to collapse
I don't know what you mean by "trustworthy". But you won't fine a "guide" because its a single fastboot command: fastboot oem lock
redpoint73 said:
Correct. It doesn't matter what ROM is on the device when you relock the bootloader. The phone will be rendered unable to boot (may even wipe OS) when you relock.
I don't know what you mean by "trustworthy". But you won't fine a "guide" because its a single fastboot command: fastboot oem lock
Click to expand...
Click to collapse
Thank you very much. So I can run the RUU with my M8 on bootloader mode? Because after relocking the bootloader, I'm asuming it probably won't even boot since it's running a custom ROM and kernel. (I'll be running the exact same RUU version I ran before installing the custom rom)
sarxion said:
So I can run the RUU with my M8 on bootloader mode?
Click to expand...
Click to collapse
The RUU will run with the phone in bootloader-fastboot mode, yes.
sarxion said:
Because after relocking the bootloader, I'm asuming it probably won't even boot since it's running a custom ROM and kernel.
Click to expand...
Click to collapse
That is correct. And in fact, as far as I know, the phone is rendered unable to boot into OS after relocking the bootloader, even if you were on the stock ROM.
OP,
Were you able to go back to stock?

Upgrading Software Issue.

Software up to date issue
HI all, just got this M8 and it is an ATT Version. but I believe it is unlocked because I am using it with cricket.
When trying to update Android Tells me software is up to date ?
Android version 5.0.2
HTC Sense Version 6.0
Software Number 4.28.502.1
HTC SDK API Level
I am pretty sure that ATT has updated to Marshmallow by now / So why can't I update? I am on wifi and 4G/LTE Could it be because I am using a Cricket Sim Card in the Phone ?
I have downloaded the RUU for Marshmallow software version 6.20.502.5. Should I continue with the Manual update ?
I believe this phone was originally purchased from ATT on May of 2016 if it makes any difference , figured I post it. since it could be a newer version of HTC M8.
Also is there a way to back up my current stock rom, without Rooting phone ? Thanks for all your help.
As I cannot root my phone, because when I go into developer option and search for S-off That option is not there and I can't Continue.
My responses below in red font:
ELEVO said:
HI all, just got this M8 and it is an ATT Version. but I believe it is unlocked because I am using it with cricket.
When trying to update Android Tells me software is up to date ?
I am pretty sure that ATT has updated to Marshmallow by now / So why can't I update? I am on wifi and 4G/LTE Could it be because I am using a Cricket Sim Card in the Phone ?
That is correct, the AT&t version (and most US versions) can only OTA update if connected to the proper branded carrier (AT&T in this case). Therefore, the RUU is your best option to update.
I have downloaded the RUU for Marshmallow software version 6.20.502.5. Should I continue with the Manual update ?
You can. But you need to flash the 6.20.502.5 firmware first, before you can flash the RUU. See instructions to flash the firmware here: https://forum.xda-developers.com/showpost.php?p=67123738&postcount=7
Then run the RUU. Keep in mind, that RUU will wipe the phone. So backup your data to an off-phone location (cloud, computer, etc.) before RUU.
Also is there a way to back up my current stock rom, without Rooting phone ? The current Lollipop ROM? No, there will be no way to revert to LP by official means, once you RUU to Marshmallow. I doubt you will find the need or desire to "downgrade" to obsolete LP version. If for some reason you did want to, there are options, but would require unlocking the bootloader (to install custom recovery and flash a Lollipop ROM), or s-off (which would allow you to "downgrade" by RUU - which is not allowed with s-on).
As I cannot root my phone, because when I go into developer option and search for S-off That option is not there and I can't Continue.
You are misunderstanding a couple things:
1) s-off is not a setting in Developer Options. s-off can only be obtained with sunshine app ($25)
2) You don't need s-off to root this device. Simply unlock the bootloader, install TWRP, and flash SuperSU to root
Click to expand...
Click to collapse
Detailed
redpoint73 said:
My responses below in red font:
Click to expand...
Click to collapse
Thanks for the detailed reply, really helpful and greatly appreciated :good:
Two more Questions, Can I upgrade to an official DEV Edition RUU on this ATT Device? or would I have to use a Custom Dev ROM ? as I am trying to Tether with my phone, just like my official Developer HTC M8 I purchased in 2014 , Seems AT&T phone wont allow me to Tether ?
Also once I flash firmware and upgrade to official RUU will need to Unlock and Root Loader? Will doing upgrading to official Marshmallow Relock bootloader and Un Root Phone ? Back to Stock ? Thanks again, I will be attempting this pretty soon. Thanks again
For the Record, I have made a back up of my Lollipop via TWRK. I also backed it up using Titanium back up, just in case.
Again, my responses in red font:
ELEVO said:
Thanks for the detailed reply, really helpful and greatly appreciated :good:
You're welcome. Always happy to help!
Two more Questions, Can I upgrade to an official DEV Edition RUU on this ATT Device?
You can't flash the Dev Edition RUU with s-on. Even though the versions are very similar (same model ID - MID) the two versions have different carrier ID (CID). Wrong carrier ID will make the Dev Ed RUU fail, by definition. And the only way to change CID is with s-off. Further, its not really necessary to flash the Dev Ed RUU (and not worth spending money of s-off) to accomplish what you want (see more below)
or would I have to use a Custom Dev ROM ? as I am trying to Tether with my phone, just like my official Developer HTC M8 I purchased in 2014 , Seems AT&T phone wont allow me to Tether ?
Its correct that the AT&T stock ROM disables tethering. Flashing most custom ROMs (or the Dev Ed ROM) will enable tethering - as well as remove annoying AT&T branding and bloat apps. Flashing the Dev Ed RUU is not necessary to accomplish this.
Also once I flash firmware and upgrade to official RUU will need to Unlock and Root Loader? Will doing upgrading to official Marshmallow Relock bootloader and Un Root Phone ? Back to Stock ? Thanks again, I will be attempting this pretty soon. Thanks again
You need to relock the bootloader in order to flash firmware and RUU (command: fastboot oem lock). Once the RUU is complete, the phone will be on a fully stock "factory" image. So you will be unrooted. You will also be back to stock recovery (no longer have TWRP installed). From there, what you want to do:
1) Unlock the bootloader again. Either use the same unlock bin code you used to unlock BL before. Or get a new code from HTCDev.com
2) Flash TWRP back to the phone with fastboot. TWRP 3.0.2 is recommended for compatibility with MM firmware.
3) Flash the desired custom ROM. The custom ROM will be rooted (if you flash the Dev Ed ROM, you can select root in the AROMA installer).
For the Record, I have made a back up of my Lollipop via TWRK. I also backed it up using Titanium back up, just in case.
Always good to make backups. Although be aware, that RUU will wipe the phone, including internal storage. So if you picked internal storage as your backup location, you'll want to move/copy to another location (removable SD is okay, otherwise to computer or cloud).
Also note that restoring app data (as well as call logs, SMS) using Titanium, after RUU or ROM flash should be okay. But don't restore any system data, as this can cause problems.
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redpoint73 said:
Again, my responses in red font:
Click to expand...
Click to collapse
Ok i came back to this old post. I forgot all about it, it really is helping me alot.
My questioin is after i Relock the bootloader can i do a factory wipe? will this remove everything from my phone and bring it back to stock?
I relocked my phone, but all my apps and contacts are their.
Bricked ?
ELEVO said:
Ok i came back to this old post. I forgot all about it, it really is helping me alot.
My questioin is after i Relock the bootloader can i do a factory wipe? will this remove everything from my phone and bring it back to stock?
I relocked my phone, but all my apps and contacts are their.
Click to expand...
Click to collapse
I think i may have bricked my phone? I went and installed an RUU firmware file for Marshmallow as most instruct to do via Fastboot. All went well, installation completed and i was able to send command to phone to reboot. when it tried to reboot. white screen with HTC Comes on and then goes almost black with a very light dark grey background.
Phone would not reboot into anything but dark screen. even when i restarted it with power button. the only thing that worked for me, was Holding Down Power/Volume and quickly hit the volume down button before device would vibrate to reboot, that took me into recovery. Below is what i see in Recovery.
Phone now has new software
***RELOCKED***
m8_UL_CA PVT SHIP S-ON
HBOOT-3.1.0.0000
RADIO-4.0 [email protected]
OpenDSP-V56.2.2-00593-M8974_FO.0126
0S-6.20.502.5
eMMC-boot 2048MB
APR 14 2016,19:39:46.0
HBOOT
<Vol UP> to previous item
<Vol Down> to next item
<Power> to select item
FASTBOOT
RECOVERY
FACTORY RESET
SIMLOCK
CHECK SMARTSD
IMAGE CRC
SHOW BARCODE
I was able to run and "IMAGE CRC" via boot loader. it gave me alot of numbers after calculating. not sure if that is a good sign ?
Things I've tried in Recovery.
1. Recovery goes back to black screen.
2. SHOW BARCODE Works- 3 bar codes showed up.
3. Fastboot works. but when i try command "adb devices" it says list of devices attached. but nothing shows up
4. Tried to do a factory reset and tries to do it, then a black phone pops up on screen with green arrow sgoing in circles for like 10 seconds. then reboots to dark screen.
Please Help :crying: Thanks
Can anyone help me with this? I bought the phone with me on vacation and now using an HTC Developer Edition that the button down doesn't work and Volume down button us sunk in But at least i have my phone with all my contacts and apps , For now ?
I would like to know if i can unbrick my other HTC . Thanks.
Late in responding, as I was on work travel myself, and not on XDA for over a week.
ELEVO said:
I think i may have bricked my phone?
Click to expand...
Click to collapse
It's basically impossible for you to do anything with an s-on M8 that will actually brick it. That is the good thing about s-on.
ELEVO said:
I went and installed an RUU firmware file for Marshmallow as most instruct to do via Fastboot. All went well, installation completed and i was able to send command to phone to reboot. when it tried to reboot. white screen with HTC Comes on and then goes almost black with a very light dark grey background.
Click to expand...
Click to collapse
I think you only flashed the firmware.zip and not the RUU. Based on the condition here, and your other thread you created here: https://forum.xda-developers.com/htc-one-m8/help/htc-one-e-m8-fastboot-issues-t3757628
I clearly described above to flash the firmware.zip then the RUU. They are 2 completely different things. Firmware is about 80 MB and only contains hboot, radio, and a few other things. RUU is a full image that is 1.5 GB.
No boot after flashing signed firmware is normal, as it expects the RUU to be run afterwards.
ELEVO said:
Fastboot works. but when i try command "adb devices" it says list of devices attached. but nothing shows up
Click to expand...
Click to collapse
adb doesn't work in fastboot mode. Only fastboot commands will work in fastboot mode. You can only use adb when booted to OS (not an option for you, obviously) or alternately in custom recovery TWRP. So what you describe (adb not working) is normal and expected.
However, fastboot is enough to get the phone working from the described condition.

Which Stock Recovery Version for HTC One M8

There is a master list of stock recovery versions for the HTC One. How do I determine which version I should be using?
None of those. That is hardly a "master" list. It's over 3 years old, never updated past the original Kitkat (M8 release) recoveries, and woefully obsolete. You'll want your recovery number to match your OS number (main version on bootloader screen or getvar all). Also, none of those are valid for AT&T version M8 (which is what I assume you have, since this section is specifically for the AT&T M8). It would need to have "502" in the version number x.xx.502.x which specifically denotes AT&T.
Why exactly do you want stock recovery? Most folks want this, in order to get OTA updates. But you will also need a stock, never rooted ROM (unrooting doesn't work), and also must be connected to the AT&T network. It's probably easier to relock the bootloader, and update by RUU. Note that RUU will wipe all data from the phone. See RUU section in my Index thread: https://forum.xda-developers.com/showthread.php?t=2751432
If you really want stock recovery, you should be able to extract it from the firmware.zip. Find the right firmware version number from the firmware collection, and extract recovery.img from the "Stock, Full Wipe" firmware zip:
https://forum.xda-developers.com/htc-one-m8/development/progress-fuu-m8-t2813792
That is definitely helpful. Thank you. I didn't realize that I could pull the bootloader out of the firmware.zip. The phone was AT&T and later unlocked and made in to a rooted Cyanogenmod phone. I had to un-root and install Android GPE. It's not really AT&T anymore. Now I can download OTA updates, but cannot install them because TWRP is still the bootloader. I would rather do the OTA updates since the phone is already stock-ish and resetting everything is only slightly preferable to stabbing my eye out.
Since I'm unlocked on marshmallow, it looks like I want the 6.12.1540.4 zip.
mortifyxda said:
I didn't realize that I could pull the bootloader out of the firmware.zip.
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Click to collapse
Recovery and bootloader are two completely different things! You can pull recovery.img from firmware.zip, and flash with fastboot. I would not do this with bootloader, which would require s-off (to flash manually) and it would still be risky. Better to flash the whole firmware.zip or RUU, if you want to update bootloader. But I don't think that is what you meant.
mortifyxda said:
I had to un-root and install Android GPE. It's not really AT&T anymore. Now I can download OTA updates, but cannot install them because TWRP is still the bootloader. I would rather do the OTA updates since the phone is already stock-ish and resetting everything is only slightly preferable to stabbing my eye out.
Since I'm unlocked on marshmallow, it looks like I want the 6.12.1540.4 zip.
Click to expand...
Click to collapse
Your description is confusing, and I think you're mixing the terms up again. 6.12.1540.4 is the version number for the US Developer's Edition, which is Sense, and not the same as Google Play Edition (GPE) which is not Sense.
To OTA, the version number of the current stock ROM needs to match your firmware number (in bootloader and getar all), and you also need matching stock recovery.
To be clear, what is the current ROM (and version number) as shown in Settings? And also do fastboot getvar all, and post the result (delete IMEI and serial number). Need those pieces of info, before I can properly advise what stock recovery to use.

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