Develop Bugs

[Q] Troubles at UnRooting M8

Hello there!
I know there are many threads and questions about unrooting, but I haven't found anything useful to me (or I just don't understand them) and also I'm new to the whole root/unroot thing.
Here is the story. I rooted my device via TWRP Recovery. Then I tried to get S-OFF using Firewater. When I wasted like a few days trying to get this done I discovered that my device is "Patched by HTC" so I cannot use Firewater anymore to get this S-OFF.
The whole thing was to convert my M8 into a GPE version. Now I'm trying to revert my phone back to stock ver. because I have no need in root.
So is it possible to unroot my phone?
My CID is HTC_622
Software number is 1.60.708.2
Thanks in advance!

Funky_Noises said:
Hello there!
I know there are many threads and questions about unrooting, but I haven't found anything useful to me (or I just don't understand them) and also I'm new to the whole root/unroot thing.
Here is the story. I rooted my device via TWRP Recovery. Then I tried to get S-OFF using Firewater. When I wasted like a few days trying to get this done I discovered that my device is "Patched by HTC" so I cannot use Firewater anymore to get this S-OFF.
The whole thing was to convert my M8 into a GPE version. Now I'm trying to revert my phone back to stock ver. because I have no need in root.
So is it possible to unroot my phone?
My CID is HTC_622
Software number is 1.60.708.2
Thanks in advance!
Click to expand...
Click to collapse
just flash stock then flash stock recovery and your done
but bootloader will still say tampered

jaythenut said:
just flash stock then flash stock recovery and your done
but bootloader will still say tampered
Click to expand...
Click to collapse
Thanks for the reply.
I wish there was more detail in your post: like what software should I use to flash stock?
Should I download some rom for that?
As I said, I'm really new to the whole thing.

1. Flash your backup in TWRP
2. Once restored and confirmed working, flash the stock recovery image for your software version in fastboot the same way you flashed TWRP (fastboot flash recovery <nameofrecovery>.img

3419
EddyOS said:
1. Flash your backup in TWRP
2. Once restored and confirmed working, flash the stock recovery image for your software version in fastboot the same way you flashed TWRP (fastboot flash recovery <nameofrecovery>.img
Click to expand...
Click to collapse
I see! Thanks a lot!
Will try that.
Damn, I wish I could do S-OFF and convert my phone into GPE ;|

stock recovery
EddyOS said:
1. Flash your backup in TWRP
2. Once restored and confirmed working, flash the stock recovery image for your software version in fastboot the same way you flashed TWRP (fastboot flash recovery <nameofrecovery>.img
Click to expand...
Click to collapse
Hey I've been googling for hours for this too.I know this is an old post.
I am one of the unfortunate people do get a 1.60 up
Update on CID HTC__622
I have surfed the page with the list of nandroids, however there is no stock recovery that begins with 1.60. From other research it states that the first two numbers are the most important whilst flashing recoveries.
Any information would be really helpful
Thanks

[Q] Go back to stock

Hi All,
I have a Dutch T-Mobile HTC One M8 (Gunmetal Gray)
I unlocked bootloader via HTCDEV
i have TWRP
i have HD 10.2 ROM
i don't have S-OFF
I made a backup from my original rom (via TWRP)
Now i have some warranty issues, so i want to go back to stock (so total stock, no root, no unlocked bootloader, and original rom back)
Can some body explain me step by step how to get back to stock.
Thanks in advance!

samstar said:
Hi All,
I have a Dutch T-Mobile HTC One M8 (Gunmetal Gray)
I unlocked bootloader via HTCDEV
i have TWRP
i have HD 10.2 ROM
i don't have S-OFF
I made a backup from my original rom (via TWRP)
Now i have some warranty issues, so i want to go back to stock (so total stock, no root, no unlocked bootloader, and original rom back)
Can some body explain me step by step how to get back to stock.
Thanks in advance!
Click to expand...
Click to collapse
Since you made a backup your stock ROM this shouldn't be too difficult. Sadly though unless you obtain S-OFF as far as I know you will not be able to achieve LOCKED again only RELOCKED. This shouldn't be a problem with your warranty but you may want to check.
If you enter TWRP and restore from your backup you will be back to stock and about relocking the bootloader it's simply the command:
After your restore your backup ensure fastboot is desabled in settings and USB debugging is still enabled and then reboot into FASTBOOT.
In fastboot use the command:
fastboot oem lock
That should be it as far as I know. Still take my advice with caution considering I am new to this as well but I am pretty sure considering your backup it's very simple task.
Good luck with returning your phone!

questions about returnig to stock - warrenty

I have to get 100% stock for warrenty.. my devices is s-off, custom recovery, bootloader unlocked and custom rom. Will i get to stock with these steps: ?
- flash the stock rom (from my nadroid backup)
- flash the stock recovery
- set the bootloader to "locked"
- go back s-on
do i need an unlocked bootloader to get s-on ("writesecureflag 3) ?
Thanks!

If you used htcdev to unlock the boot loader, this can be a problem since HTC can see it!

MICH_** said:
I have to get 100% stock for warrenty.. my devices is s-off, custom recovery, bootloader unlocked and custom rom. Will i get to stock with these steps: ?
- flash the stock rom (from my nadroid backup)
- flash the stock recovery
- set the bootloader to "locked"
- go back s-on
do i need an unlocked bootloader to get s-on ("writesecureflag 3) ?
Thanks!
Click to expand...
Click to collapse
Have you tried looking at this thread? http://forum.xda-developers.com/showthread.php?t=2735235

MrKhozam said:
Have you tried looking at this thread? http://forum.xda-developers.com/showthread.php?t=2735235
Click to expand...
Click to collapse
Yes i have Do i have to flash the whole firmware? Or is it enough to flash te stock recovery? should be okay i think..

MICH_** said:
Yes i have Do i have to flash the whole firmware? Or is it enough to flash te stock recovery? should be okay i think..
Click to expand...
Click to collapse
If you're already on stock Sense 6 before doing these steps, I would think flashing stock recovery is enough. Then you can manually boot into the OS and do a factory reset from within the settings, before sending it off for warranty repairs.

MrKhozam said:
If you're already on stock Sense 6 before doing these steps, I would think flashing stock recovery is enough. Then you can manually boot into the OS and do a factory reset from within the settings, before sending it off for warranty repairs.
Click to expand...
Click to collapse
okay, thank you! do you think i should go s-on? (i heard about may risks when going back s-on)

MICH_** said:
okay, thank you! do you think i should go s-on? (i heard about may risks when going back s-on)
Click to expand...
Click to collapse
You can try spoofing S-ON status through hboot. I have not tried this before, so proceed with caution. You can read about it here: http://forum.xda-developers.com/showthread.php?t=2708721.

MrKhozam said:
You can try spoofing S-ON status through hboot. I have not tried this before, so proceed with caution. You can read about it here: http://forum.xda-developers.com/showthread.php?t=2708721.
Click to expand...
Click to collapse
Does it work to flash files (.zip & recovery) with a locked bootloader but s-off? And is it possible to get s-on with a locked bootloader?
Okay, thanks guys! I just "stocked" my phone The only thing that´s left is s-off. Do you recommend to go back s-on?

I successfully returned my M8 back to full stock (no root, locked bootloader and S-On). I wrote about my experiences here: http://forum.xda-developers.com/showpost.php?p=55374704&postcount=7

[Q] HTC One M8 HELP!

Hello, i must send my phone to service and need help.
My phone is rooted and i have custom recovery, i went from S-OFF to S-ON and locked the bootloader but forgott to install stock recovery.
Now i try to S-OFF with Sunshine again but it fails all the time:

Adrianiii said:
Hello, i must send my phone to service and need help.
My phone is rooted and i have custom recovery, i went from S-OFF to S-ON and locked the bootloader but forgott to install stock recovery.
Now i try to S-OFF with Sunshine again but it fails all the time:
Click to expand...
Click to collapse
So did you try to contact Sunshine team as per the instructions?

yes no help from them..

You'll need to unlock your bootloader at HTCDev if Sunshine won't work.... And obviously that's not a good idea if you're sending it in.
Not sure what you can do... You're a bit stuck.

Flash an untouched firmware for your device version with external_sd method. It'll install the stock recovery.

ckpv5 said:
Flash an untouched firmware for your device version with external_sd method. It'll install the stock recovery.
Click to expand...
Click to collapse
I did that and it worked, thx but my next prob is that i cant unroot my phone and in my bootloader i have status: Modified

No recovery.... ?

Is it possible to have a working phone without a recovery installed ?
Unlocked bootloader, flashed twrp 3.0.1.0, phone wouldn't boot into recovery.
Relocked bootloader cause phone is s-on, ran 401 ruu but can't get into stock recovery but otherwise phone works ok
:banghead:

There is always a recovery installed. Either the stock one or the custom one. What does it do when you go to the recovery?

10rdan said:
Is it possible to have a working phone without a recovery installed ?
Unlocked bootloader, flashed twrp 3.0.1.0, phone wouldn't boot into recovery.
Relocked bootloader cause phone is s-on, ran 401 ruu but can't get into stock recovery but otherwise phone works ok
:banghead:
Click to expand...
Click to collapse
Just fyi, but I'm pretty sure you can flash RUU in RUU mode with bootloader unlocked.
Phone works fine without recovery, but you can't take an ota, flash roms (custom recovery) or wipe data/cache.
I'd unlock again, and flash either stock recovery, run the RUU again, or flash TWRP 3.0.2-2. Why were you using such an old version in the first place? That's likely the cause of your issue in getting the phone to boot to TWRP.

jollywhitefoot said:
Just fyi, but I'm pretty sure you can flash RUU in RUU mode with bootloader unlocked.
Phone works fine without recovery, but you can't take an ota, flash roms (custom recovery) or wipe data/cache.
I'd unlock again, and flash either stock recovery, run the RUU again, or flash TWRP 3.0.2-2. Why were you using such an old version in the first place? That's likely the cause of your issue in getting the phone to boot to TWRP.
Click to expand...
Click to collapse
With s-on you need to relock the bootloader to use official signed ruu files. When he flashed the ruu he could be seeing the exclamation mark that is normal as a warning before entering the stock recovery for which you need to push a volume and power button combo (don't know them heads up)
A possibility is to clear the cache and try to enter again (as this was a thingy on older HTC devices) or indeed as suggested at least to use the latest twrp available

Mr Hofs said:
With s-on you need to relock the bootloader to use official signed ruu files. When he flashed the ruu he could be seeing the exclamation mark that is normal as a warning before entering the stock recovery for which you need to push a volume and power button combo (don't know them heads up)
A possibility is to clear the cache and try to enter again (as this was a thingy on older HTC devices) or indeed as suggested at least to use the latest twrp available
Click to expand...
Click to collapse
It doesn't get as far as red exclamation mark, that's what I was waiting for. I'll try the newer version of twrp tomorrow after I've unlocked bootloader again. Do you think the same unlock code will work again?

10rdan said:
It doesn't get as far as red exclamation mark, that's what I was waiting for. I'll try the newer version of twrp tomorrow after I've unlocked bootloader again. Do you think the same unlock code will work again?
Click to expand...
Click to collapse
Yes i think it does work again. But that's a try and find out. There is always the possibility i could be wrong.
Edit :
This is why i love s-off....no more relocking / unlocking the BL with also an increased chance of bricks. The BL isn't made to be relocked and unlocked over and over.

Mr Hofs said:
With s-on you need to relock the bootloader to use official signed ruu files.
Click to expand...
Click to collapse
Sorry, but I believe this is misinformation, possibly residual to older HTC devices. I've heard this going back to the M7.
You need to be s-off to flash in download mode, but s-on can flash signed firmware and ruu's in RUU mode. I'm s-off so I can't test at the moment, but I'm about 99% that my information is correct.
S-on, you can only flash same or newer, though. You can't flash older firmware.
See post 19 here:
http://forum.xda-developers.com/htc-10/how-to/unlocked-official-ruu-t3378540/page2
I'm 100% that you can flash signed firmware package in ruu mode with bootloader unlocked and s-on.

jollywhitefoot said:
Sorry, but I believe this is misinformation, possibly residual to older HTC devices. I've heard this going back to the M7.
You need to be s-off to flash in download mode, but s-on can flash signed firmware and ruu's in RUU mode. I'm s-off so I can't test at the moment, but I'm about 99% that my information is correct.
S-on, you can only flash same or newer, though. You can't flash older firmware.
See post 19 here:
http://forum.xda-developers.com/htc-10/how-to/unlocked-official-ruu-t3378540/page2
I'm 100% that you can flash signed firmware package in ruu mode with bootloader unlocked and s-on.
Click to expand...
Click to collapse
That's new to me. Hopefully it isn't just tied to the developers edition then.
Thanks for the information

Mr Hofs said:
This is why i love s-off....no more relocking / unlocking the BL with also an increased chance of bricks. The BL isn't made to be relocked and unlocked over and over.
Click to expand...
Click to collapse
I'll bare that in mind, will unlock tomorrow again and try newer twrp. Only reason I relocked was to run ruu to get phone running again.

jollywhitefoot said:
Just fyi, but I'm pretty sure you can flash RUU in RUU mode with bootloader unlocked.
Phone works fine without recovery, but you can't take an ota, flash roms (custom recovery) or wipe data/cache.
I'd unlock again, and flash either stock recovery, run the RUU again, or flash TWRP 3.0.2-2. Why were you using such an old version in the first place? That's likely the cause of your issue in getting the phone to boot to TWRP.
Click to expand...
Click to collapse
Where can I find 3.0.2.2, can only see 3.0.2.0 on twrp site?
Cheers
Edit.... Found it. ?

@jollywhitefoot
I've got stock recovery back on phone. Can you think of any reason, other than old version, as to why twrp wouldn't boot after flashing it ?
Will try again tomorrow.

10rdan said:
@jollywhitefoot
I've got stock recovery back on phone. Can you think of any reason, other than old version, as to why twrp wouldn't boot after flashing it ?
Will try again tomorrow.
Click to expand...
Click to collapse
I'm not exactly sure, but up until 3.0.2.2 Captain Throwback didn't even have the device and was working blind. I know he was trying different things to make it compatible with different variants, too, so in my mind that was a test build. I'm not sure why they have it on the downloads page. For me, I always download it from the download section of the twrp thread.