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Hello all, I used the htc unlock method, but I am not able to flash a different radio version.
Does anyone know how to do that?
(Just booting into bootloader does not do the trick like it would normal unlock methods)
Thanks.
Anyone?
Sent from my PG86100 using XDA App
have you tried the commands
adb reboot bootloader
fastboot boot recovery.img
and flashing the radios from fastboot? or FlashimageGUI (which probably will not work for radios)
I have been wondering this myself. I have not heard of any methods that have come up to allow this recently. Same thing goes for splash images as I havent seen any method for those.
I have an idea of how it may be possible though. Perhaps someone else with a bit more knowledge can chime in to let us know if it is possible or not.
Anyhow.
Being officially unlocked I don't believe that ROOT is an issue like it is on an unofficial method. I know typically you would NOT accept an OTA to prevent the loss of ROOT. However, being an officially unlocked device, I am not sure if it matters.
I know that when I unlocked my device I had to manually unlock it, then I installed my recovery, then I simply flashed SU to it. My thought is that you can take the OTA. If the OTA doesn't work, you may have to re-lock the device, then run the OTA. But I believe the OTA would be safe. Once OTA completed, then flash your unlock token again, put recovery back on, then flash SU again.
Or I believe you could also wait for the new RUU instead of an OTA. Put on stock ROM, re-lock, run RUU, re-unlock, install recovery, flash SU.
The problem is that you may not be able to flash back to the previous radio once you are done.
Any thoughts on this?
UPDATE: I recently (like two minutes ago) learned that an RUU will not update a radio. I was under the impression that they did. Since it will not, I guess the RUU method will not work. Still curious about the OTA method though.
From the HTCDev Q and A:
HTCDev said:
Why is my security still on (S-On) after I have unlocked my bootloader?
Your device is shipped with Security on (S-ON) to protect your system software configuration (such as the bootloader, radio, boot, recovery, system and others). After you have unlocked the bootloader, however, you will have lifted the restrictions on boot, recovery and system. This means you can customize boot, recovery and system images on your phone as you desire. You can easily see that you have successfully unlocked the bootloader by looking at the top of the screen when entering the bootloader screen. Security is left on to protect things like the radio, and SIM lock.
Click to expand...
Click to collapse
yousefak said:
From the HTCDev Q and A:
Click to expand...
Click to collapse
Well, yeah. The S stays on to protect the radio.
But the S would be on regardless if you never rooted to begin with, but an OTA would allow the radio to update. So, my thought is that you can potentially take an OTA with the HTC unlock method and get the new radio.
If it were me, I would save my titanium file to my PC (just as a precaution), I would re-lock my device using fastboot oem lock, then I would run the RUU that matches my current software version. This would return me to stock/unrooted. At this point you should be able to accept an OTA. The OTA updates your radio/software/etc. Once you update, flash the unlock token again, then flash the superuser binary back onto the phone. Now, this would be contingent that HTC doesn't go back on their word and they dont push an OTA that prevents you from unlocking the phone.
Now, Ill admit I am not a developer, so I am not an expert, but it is my understanding that once it is unlocked putting root on the phone is pretty straight forward. You don't have to come up with a root method such as revolutionary, etc. It should simply allow Superuser because it is unlocked. If this is not the case, then Ill admit that my thought process is flawed. However, if it is the case, then why not return to stock, take an OTA, unlock, re-root, use titanium? Like I said, may not be able to return to previous radio, but why would you anyhow?
mildlydisturbed said:
have you tried the commands
adb reboot bootloader
fastboot boot recovery.img
and flashing the radios from fastboot?
Click to expand...
Click to collapse
Can someone tell me how exactly to accomplish the above?
I ran these commands and the it said "Installing update..." but the radio remains the same.
Thanks again.
I'm aware of the OTA update next week that'll update me to Sense 6.
Currently displays in recovery:
Tampered
Unlocked
S-OFF
Currently on stock 4.4.2 rooted, no other kernel changes, etc. but the ROM I'm using has custom black boot screens added (literally just black instead of default white boot background).
Rooting is nice and all but getting tired and would just like to revert to pretty much locked bootloader, unrooted, factory condition, etc. and be able to also do OTA for future updates.
Any help is appreciated. Baby steps please.
Anyone?
First, relock your bootloader. To do that, start your phone in bootloader mode, connect your phone to pc via usb cable and type "fastboot oem lock" on command prompt. Next, download the proper ruu exe file from htc1guru.com. By proper,I mean the one that matches your phones actual model number and custom id. Execute the ruu while connecting your phone to pc in fastboot mode. Follow the on screen instructions and when finished, you will have s phone that says re locked and s-off. You will get ota in this condition and will be able to install ota and upgrade to Sense 6.0 without any problems.
http://forum.xda-developers.com/showthread.php?t=2695749
Can I just flash that RUU in the link above? It should take me back to stock 4.4.2 with no modifications, stock recovery, and since I have an unlocked bootloader + S-OFF I should be able to get OTA's.
I'm just getting replies and finding info in other threads with different methods so I just don't want to screw up anything.
SaHiLzZ said:
If you are only rooted with stock ATT software, unroot using the SuperSU app, make sure you have stock recovery, and you are golden. DO NOT turn S-ON, and also no need to lock bootloader, as with S-OFF, you will get updates with unlocked bootloader
Click to expand...
Click to collapse
I'm running stock AT&T 4.4.2 but the person who uploaded the ROM used a custom black boot screen (black HTC background instead of white when the phone boots) and so I was worried that might affect things. Hence I thought I could just flash an RUU to go back to 100% stock AT&T 4.4.2 (+ unroot) and maintaining unlocked bootloader + S-OFF so I can OTA.
EDIT: Could I just convert it to a Developer Edition using the link in your signature? Will there be any problems with my AT&T SIM card? All I have to do is relock bootloader and flash the Dev. Edition ROM.
Yes you can flash the decrypted ruu. It is the same as using the ruu exe.
If you haven't changed your mid and/cid,then what you need to is just lock the bootloader and flash the ruu (zip or exe). You will be on stock with s-off which is fine for getting ota.
Yes you can convert to developer edition. The DE and the at&t version are the same hardware-wise (except DE have 64gb storage instead of 32gb on at&t version) and have the same radio bands. You will get faster Android upgrades with no at&t bloats.
mch277 said:
http://forum.xda-developers.com/showthread.php?t=2695749
Can I just flash that RUU in the link above? It should take me back to stock 4.4.2 with no modifications, stock recovery, and since I have an unlocked bootloader + S-OFF I should be able to get OTA's.
I'm just getting replies and finding info in other threads with different methods so I just don't want to screw up anything.
I'm running stock AT&T 4.4.2 but the person who uploaded the ROM used a custom black boot screen (black HTC background instead of white when the phone boots) and so I was worried that might affect things. Hence I thought I could just flash an RUU to go back to 100% stock AT&T 4.4.2 (+ unroot) and maintaining unlocked bootloader + S-OFF so I can OTA.
EDIT: Could I just convert it to a Developer Edition using the link in your signature? Will there be any problems with my AT&T SIM card? All I have to do is relock bootloader and flash the Dev. Edition ROM.
Click to expand...
Click to collapse
You may want to just try and apply the OTA when released. I'm not aware that S-OFF is a problem, I know an unlocked bootloader nor rooted isn't an issue. I got the Rogers OTA with an unlocked bootloader a rooted (by the way was still rooted after the OTA)
Just my 0.02
mb_guy said:
You may want to just try and apply the OTA when released. I'm not aware that S-OFF is a problem, I know an unlocked bootloader nor rooted isn't an issue. I got the Rogers OTA with an unlocked bootloader a rooted (by the way was still rooted after the OTA)
Just my 0.02
Click to expand...
Click to collapse
My understanding is that, if there's any modification in system files, applying OTA may result in a bootloop/brick. I agree that rooted devices remain rooted after OTA. As the OP said that s/he us using a rom with modified boot animation, I suggested him/her to return to stock first.
I've had a lot of trouble upgrading to KitKat. After attempting to flash different image files for stock recovery/boot/system, I found it impossible to completely unroot the phone using the instructions posted because the phone kept re-rooting itself. Finally, I S-offed, wrote superCID, used the Telus RUU, applied the OTA downloaded to the phone, changed the CID back to GLOBA001 (my carrier is WindMobile). And finally! I know I relocked and unlocked the bootloader somewhere in the process, but I can't quite remember when.
Now, before I even think of re-rooting the phone or installing a custom recovery, I'd like to create a backup of the stock boot, recovery, and system. I tried running
Code:
fastboot boot openrecovery-twrp-2.7.1.1-zaracl.img
using the special KitKat TWRP. There's a message about boot.img being downloaded successfully but the phone reboots to a black screen.
I know that TWRP 2.7.1.0 downloaded from their website worked fine on my phone before I ran the RUU . So I'm not sure that the new TWRP is incompatible with my phone.
If I wanted to use adb instead, I'd need to root the phone before being able to pull the stock recovery, boot, and system images using adb shell. If I have to resort to rooting, is there any way to do so without flashing a custom recovery first? If there is, I might be able to unroot the phone afterward and make it stick. (Delete the supersu apk and su binary, right?)
I remember that the first time my phone attempted to download and apply the OTA automatically, my phone wiped itself. It was a lot of hard work to get it back to a usable state, but it was my own fault for not having a proper backup. I'd like to avoid making that mistake again, and have a stock backup handy on my computer in case there are carrier updates for my phone in the future.
To re-iterate, possible to back up stock everything without root? If not, possible to root without installing custom recovery?
You can no longer boot into a custom recovery, you have to actually flash it.
As far as having the stock recovery and boot, those are actually inside the OTA so you can pull it from there.
Since you'll have the stock recovery already, you can flash TWRP and use that to backup boot and system.
When you need to go stock, just use TWRP to restore your backup and then manually flash the stock recovery.
Since you made the device S-OFF, I recommend that if you need to lock/unlock the bootloader that you use the commands in this thread versus using the htcdev method as that wipes the /data/preload/ folder (as part of its normal /data wipe) which includes a few stock apps.
I had already re-locked the bootloader using the HTCdev method after the upgrade and before starting the thread. Do you think the potential loss of apps would cause any future OTAs to fail? If so, I don't mind re-doing the RUU (no important data on the phone right now). If not, I'll proceed with flashing TWRP.
Thanks for the tip on the alternate unlock method. I'll use that method the next time I need to re-unlock the bootloader.
EveKnight75 said:
I had already re-locked the bootloader using the HTCdev method after the upgrade and before starting the thread. Do you think the potential loss of apps would cause any future OTAs to fail? If so, I don't mind re-doing the RUU (no important data on the phone right now). If not, I'll proceed with flashing TWRP.
Thanks for the tip on the alternate unlock method. I'll use that method the next time I need to re-unlock the bootloader.
Click to expand...
Click to collapse
Locking the bootloader won't do anything, it's only unlocking using the htcdev token that causes the data wipe. So if you haven't unlocked using the htcdev method since running the RUU you will still have the 2 - 3 apps.
I don't know if the /data/preload/ folder is a requirement for a successful OTA update or not but I checked inside my OTA zip for my phone and it does include the 3 items stored there for the VM variant.
The unlock was AFTER the RUU. I ran the RUU, then used the OTA to upgrade to KitKat, then unlocked the bootloader again. However, I didn't notice any apps disappearing and the OTA zip for Wind also has a /data/preload folder.
*Shrugs* Seems good enough to me. TWRP, here I come!
needing wind stock stuck with wind awsy amd wont connect
I have an unlocked desire 601 it finds only wind away I'm trying to get a backup of the stock Rom to flash it does anyone k ow if there any around or even a back up I can use to try to get my phone working on wind home
jayjsteez said:
I have an unlocked desire 601 it finds only wind away I'm trying to get a backup of the stock Rom to flash it does anyone k ow if there any around or even a back up I can use to try to get my phone working on wind home
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2804427
needing help for s-off
EveKnight75 said:
I had already re-locked the bootloader using the HTCdev method after the upgrade and before starting the thread. Do you think the potential loss of apps would cause any future OTAs to fail? If so, I don't mind re-doing the RUU (no important data on the phone right now). If not, I'll proceed with flashing TWRP.
Thanks for the tip on the alternate unlock method. I'll use that method the next time I need to re-unlock the bootloader.
Click to expand...
Click to collapse
hey i have unlocked desire 601 but only says wind away and wont connect ive knoticed the wind version is the same as the other versions but im wondering do i need the wind rom in order for it to pick up the wind home i cant seem to find anywhere online the wind rom and everytime i try to s-off it saysfailed and ive followed everything is there any insite you could give me to help me with this issue if its fixable again my phone says wind away but wont connect to it and i need to get it working as its my only device and carrier i use thx
---------- Post added at 11:29 PM ---------- Previous post was at 11:16 PM ----------
EveKnight75 said:
I had already re-locked the bootloader using the HTCdev method after the upgrade and before starting the thread. Do you think the potential loss of apps would cause any future OTAs to fail? If so, I don't mind re-doing the RUU (no important data on the phone right now). If not, I'll proceed with flashing TWRP.
Thanks for the tip on the alternate unlock method. I'll use that method the next time I need to re-unlock the bootloader.
Click to expand...
Click to collapse
hey i have unlocked desire 601 but only says wind away and wont connect ive knoticed the wind version is the same as the other versions but im wondering do i need the wind rom in order for it to pick up the wind home i cant seem to find anywhere online the wind rom and everytime i try to s-off it saysfailed and ive followed everything is there any insite you could give me to help me with this issue if its fixable again my phone says wind away but wont connect to it and i need to get it working as its my only device and carrier i use thx
-Duir- said:
You can no longer boot into a custom recovery, you have to actually flash it.
As far as having the stock recovery and boot, those are actually inside the OTA so you can pull it from there.
Since you'll have the stock recovery already, you can flash TWRP and use that to backup boot and system.
When you need to go stock, just use TWRP to restore your backup and then manually flash the stock recovery.
Since you made the device S-OFF, I recommend that if you need to lock/unlock the bootloader that you use the commands in this thread versus using the htcdev method as that wipes the /data/preload/ folder (as part of its normal /data wipe) which includes a few stock apps.
Click to expand...
Click to collapse
I don't understand how you can pull the stock recovery from the OTA. I thought OTA's are immediately installed, instead of stored untill you want to install it? So, how do you backup the stock recovery?
It is saved until you want to install. When it go finishes Downloading, just choose install later. And you will be able to copy it into other storage devices and extract files and what not. I'm not sure if it stores in internal or external I'm 80% sure external sd if you have one.
Sent from my HTC0P4E1 using XDA Free mobile app
FOUND THE RECOVERY (See below)
Right now my goal is to go back to stock to flash the OTA Update. I am running my nandroid back up I first made when which is the 4.4.4 w/ Software # 1.58.502.1. and right now I have TWRP as my recovery.
Also can someone confirm something for me. This nandroid I am running is rooted obviously and has SuperUser on it. If I go back to the stock recovery can I still do the OTA update even though SuperUser is there and the phone is unlocked?
Also in order to get the stock recovery back on the phone I need to use ABD and the windows command prompt method correct?
Thanks
found this link and was able to find the stock recovery finally. I clicked "Non-WWE- Recovery Images" Ten on the site it opens I clicked the more recoveries folder at the top and 1.58.502.1 was the first one.
http://forum.xda-developers.com/showthread.php?t=2701376
Now the only thing I need to know is if going back to stock recovery will allow me to update to OTA even though there is SuperUser on my device and even though I am rooted and unlock (S-on)
magicbumm328 said:
found this link and was able to find the stock recovery finally. I clicked "Non-WWE- Recovery Images" Ten on the site it opens I clicked the more recoveries folder at the top and 1.58.502.1 was the first one.
http://forum.xda-developers.com/showthread.php?t=2701376
Now the only thing I need to know is if going back to stock recovery will allow me to update to OTA even though there is SuperUser on my device and even though I am rooted and unlock (S-on)
Click to expand...
Click to collapse
As long as the ROM is stock (nothing modified by root) and stock recovery, you can update by OTA (root okay, unlocked bootloader okay).
Another option, just relock the bootloader and run the 4.4.4 RUU. It saves you from all the hassle (finding stock ROM and stock recovery), plus installing 2 OTAs. Only reason to do it the way you are, is to keep user data (RUU wipes phone) and it also saves you from having to relock.
redpoint73 said:
As long as the ROM is stock (nothing modified by root) and stock recovery, you can update by OTA (root okay, unlocked bootloader okay).
Another option, just relock the bootloader and run the 4.4.4 RUU. It saves you from all the hassle (finding stock ROM and stock recovery), plus installing 2 OTAs. Only reason to do it the way you are, is to keep user data (RUU wipes phone) and it also saves you from having to relock.
Click to expand...
Click to collapse
Well I do have the stock ROM. Idk if it having super user on it counts as being modified by root though? If not then its fine. And as mentioned I found the stock recovery as well.
The only reason I was looking to do it this way was because I do not really know what RUU is or how to do any of it. Idk how difficult it would be to relock the boot loader then figure out the RUU thing. Idk what the differences are between that and my phone being rooted as it is now are. I'll have to see if there is a thread that explains this RUU thing to me.
Thanks for the help and suggestion too btw
magicbumm328 said:
Well I do have the stock ROM. Idk if it having super user on it counts as being modified by root though? If not then its fine.
Click to expand...
Click to collapse
SuperUser is same as root, and is fine.
When I say "modifed by root" that often is when a user deletes "bloatware" they don't want, or adds apps, or modifies apps in the system partition.
If you didn't explicitly do any of those things, you should be fine. You will know this is the problem when you install the OTA, as the install will fail with the error message that the "system has been modified".
magicbumm328 said:
The only reason I was looking to do it this way was because I do not really know what RUU is or how to do any of it. Idk how difficult it would be to relock the boot loader then figure out the RUU thing. Idk what the differences are between that and my phone being rooted as it is now are. I'll have to see if there is a thread that explains this RUU thing to me.
Click to expand...
Click to collapse
RUU = ROM update utility
RUU is super easy, you don't really need much guidance to use it. LOCKED or RELOCKED bootloader is required to run it (UNLOCKED if okay if you have s-off). PC required, and the RUU will wipe the phone (so backup any personal data you want to keep, into your PC, cloud, etc.). Aside from those points, RUU is a self-explanatory executable (.exe) program that runs from your PC, and simple to use.
Relocking the bootloader is accomplished easily with a single fastboot command (after connecting phone to PC and booting into fastboot mode): fastboot oem lock
This is also assuming you did the bootloader unlock yourself, and therefore have fastboot/adb setup on your computer.
Running the RUU itself (after relocking the bootloader) is very easy. Boot into OS (some folks have better success being booted into fastboot mode, but I think the RUU is designed to run when booted into OS), connect to PC, then just run the RUU executable on your PC. The RUU executable will then just guide you what you need to do. Its mostly automated, you just need to confirm a few dialogue screens, etc. The RUU will reboot the phone a couple times, install the needed files automatically, and that's really it.
However, since you seem confidant you already have a stock ROM and corresponding stock recovery, I suppose the RUU doesn't gain you too much. But if you hadn't done those steps already, it often saves folks the hassle of tracking down the right stock ROM and recovery for their CID and current firmware. RUU in my opinion is a cleaner install, as it installs a complete stock image (not just updating piecemeal, like an OTA often does).
Also, since OTAs typically need to be installed in sequence, you will probably need to OTA to 2.23 software, than another OTA to 3.42 software. As RUU is a complete image, it would get you to 3.42 software in one fell swoop.
One other thing to note, is that if you are for some reason not connected to AT&T's network (using another carrier, another country, etc.) you will not get any OTAs on the AT&T branded device. AT&T oddity here, most other version will still OTA, even when not connected to a specific carrier. In contrast the AT&T RUU is able to be downloaded and run by anyone with an internet connection and PC (regardless of country, carrier, etc.). I'm under the assumption that most folks on this forum section are on AT&T's network, although I know that some are not (you haven't stated either way).
RUU links are included on my Index thread under heading "RUUs": http://forum.xda-developers.com/showthread.php?t=2751432
Aside from wiping the phone (OTA keeps user data, but you may end up wiping anyway if you run into bugs after OTA), the other downside to RUU is that you need to relock the bootloader. Then you need to unlock the bootloader again (via the HTCDev.com site, or alternately sunshine) if you want to install custom recovery, install custom ROMs, root, etc.
So the choice is really yours (RUU versus OTA). I'm just giving it as an alternative.
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?
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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
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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
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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?
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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.
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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?