Develop Bugs

T-mobile Firmware issue help required

i have a t-mobile version of htc one m8 but when flashing ROMs , i flash international version of the ROM which i'm flashing. The phone is sim-unlocked.
Lately i'm having problem of my phone getting stuck on boot and only way out is wipe cache and dalvik on every time i reboot. And also GPS is not working (tried every fix but no avail) I'm guessing his is some firmware problem.
So the thing is I want to get back to Android 4.4.4 version ( on which it was earlier before i flashed any Lollipop rom , so that i could flash T-mobile's OTA to Lollipop back ( for firmware update ) and after reading and some research , i have understood that i have to be stock recovery and relock the bootloader and get T-mobile RUU ( very confused about RUU thing)
Could someone confirm if this is the correct procedure and explain what steps i need to follow IN ORDER to get this done ( and if links to corresponding guides i will be really helpful) .
I AM S-ON.
Hboot - 3.19
Radio - 1.22.213311491.08G
Please help , really frustrated by these issues and apparently previous threads of mine have gone unanswered.

Unfortunately, if you want to revert to KK (or any older version), you will have to be S-off to do so. So, pay the $25, get S-off (which will helpfully unlock your bootloader at the same time), run T-Mobile RUU for desired version.
However, even if you are S-on, you should be able to use a current or newer RUU to get the firmware up to date, then move on to installing the ROM of your choice. You are probably better off going to the latest firmware and running an alternate ROM, but that's just me.

jshamlet said:
However, even if you are S-on, you should be able to use a current or newer RUU to get the firmware up to date, then move on to installing the ROM of your choice. You are probably better off going to the latest firmware and running an alternate ROM, but that's just me.
Click to expand...
Click to collapse
So if i were to follow S-on steps , i will have to first flash stock recovery , relock bootloader and run t-mobile RUU for firmware upgrade ?
When i relock bootloader everything will be wiped , right ?
So i connect my phone to pc with relocked bootloader and stock recovery and run t-mobile latest RUU on windows ?
Is this the correct procedure?

rahulsethi said:
So if i were to follow S-on steps , i will have to first flash stock recovery , relock bootloader and run t-mobile RUU for firmware upgrade ?
When i relock bootloader everything will be wiped , right ?
So i connect my phone to pc with relocked bootloader and stock recovery and run t-mobile latest RUU on windows ?
Is this the correct procedure?
Click to expand...
Click to collapse
That is all true; except you do not need to install stock recovery to RUU.
Stock recovery is only needed to OTA, not for RUU.

Flash Unlocked/Developer ROM WWE_6.12.1540.4

I got a M8 currently installed is stock 5.0.1 - 4.16.401.13 / Bootloader unlocked with HTC Dev / S-ON / HBOOT-3.19.0.0000 (using custom Kernel and Xposed)
I would like to update to WWE_6.12.1540.4 using this downloaded RUU here http://www.htc.com/us/support/htc-one-m8/news/
to have newest firmware, use the ROM or use a custom ROM based on the Android M builds with ahving the new firmware.
Can I flash this Unlocked/Developer ROM WWE_6.12.1540.4 (and flash TWRP again) or would I have to wait for the official RUU, relock my BL and flash and then unlock the BL again?
Thanks to HTC for making things so complicated btw.
All this HBOOT CID S-ON S-OFF Firmware BL - Chaos... meh.

t-ryder said:
I got a M8 currently installed is stock 5.0.1 - 4.16.401.13 / Bootloader unlocked with HTC Dev / S-ON / HBOOT-3.19.0.0000 (using custom Kernel and Xposed)
I would like to update to WWE_6.12.1540.4 using this downloaded RUU here http://www.htc.com/us/support/htc-one-m8/news/
to have newest firmware, use the ROM or use a custom ROM based on the Android M builds with ahving the new firmware.
Can I flash this Unlocked/Developer ROM WWE_6.12.1540.4 (and flash TWRP again) or would I have to wait for the official RUU, relock my BL and flash and then unlock the BL again?
Thanks to HTC for making things so complicated btw.
All this HBOOT CID S-ON S-OFF Firmware BL - Chaos... meh.
Click to expand...
Click to collapse
No need for ruu, you can restore stock nand and recovery for your cid/mid and get 6.0 MM OTA update from H E R E

And what about firmware (Radio)? I thought flashing or upgrading the firmware is only possible with locked bootloader or unlocked + S-OFF.

t-ryder said:
And what about firmware (Radio)? I thought flashing or upgrading the firmware is only possible with locked bootloader or unlocked + S-OFF.
Click to expand...
Click to collapse
Radio is in firmware.zip(which is part of all bigger ota's) along with other stuff(adsp,wcnss,recovery etc).. I've never relocked my bootloader(I have S-on). For ota's, you need non-rooted stock rom or nandroid and stock recovery. For RUU on the other side, if you have S-on, you'll need to relock your bootloader.

Done all the steps and downloading the OTA via device as I am typing.
Thank you very much for your input, Sir.

How to flash OTA update on rooted HTC ONE M9 software number 2.10.401.1 with S-ON

Hi! My M9 is rooted, i didnt backup the unrooted rom and now the situation looks like this : rooted m9 with s-on, stock rom 2.10.401.1 .. im also with twrp recovery.. so my question is how can i flash the ota update and how?

I am also on the same boat. Please suggest best possible way to receive OTA

Depends if which cid you are on . If wwe you can flash from 2.10.401.1 to 2.10.401.8. Then from 2.10.401.8 to the latest firmware. After that flash twrp.

Bricked?

Please help!! I tried to install a 3.x.x firmware ROM via TWPR 2.8.6.1 while my phone was still have 2.x.x firmware. The installation itself was succesful but when i tried to boot system it kept booting into bootloader screen. My phone is still S-ON and software is 2.11.425.7.

MM roms won't run on LP firmware. You need to roll back or upgrade your firmware to 6.0.

Ruu
Can you boot in bootloader ? Flash Ruu or Rom for 2.11.425.7 firmware in TWRP. Probably if firmware and rom version 2.11.425.7 is the same you can normal boot phone (if u see white screen with HTC logo you must WAAAAAAAAIT), or install RUU and update phone official to newest firmware and sofrware if u have Son. Next if u want, unlock bootloader and make SOFF and flash any rom if u want Sorry for my ENG

Bajdaspl: Yes i can boot into bootloader and can you please tell me how i can update its firmware? I've been told that to upgrade firmware my phone needs to be
S-OFF but my phone is still S-ON. I can't even find any RUU for my firmware version anywhere on the Internet. Would relocking helps????

Request at&t 6.20.502.5 stock recovery.img

Hi i have s-on with unlocked bootloader iam trying to restore back to stock using this guide here https://forum.xda-developers.com/htc-one-m8/general/guide-restore-european-htc-one-m8-to-t3072235
But iam unable to find stock recovery.img for at&t in order to proceed, Can anyone help out?

To return to "full" stock, just relock the bootloader and flash the 6.20.502.5 RUU (will wipe all user data on the phone). I don't know why that guide is advising to flash the boot.img and recovery.img before flashing the RUU. It isn't necessary.

redpoint73 said:
To return to "full" stock, just relock the bootloader and flash the 6.20.502.5 RUU (will wipe all user data on the phone). I don't know why that guide is advising to flash the boot.img and recovery.img before flashing the RUU. It isn't necessary.
Click to expand...
Click to collapse
Will this work even though the device is s-on?

David_UK said:
Will this work even though the device is s-on?
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Click to collapse
Yes. RUU that is intended for your specific device version (AT&T) will work just fine with s-on. As long as it's equal or greater to version number on the phone (no "downgrading" by RUU is allowed with s-on).
S-off is only needed to run RUU for another version (need s-off to change CID, MID), or to run an older version RUU (downgrade).