[Q] HTC M8 Dual SIM Not Booting Into Recovery - One (M8) Q&A, Help & Troubleshooting

Hi Folks,
I have a M8 Dual SIM which I have manged to brick. Despite reading the whole damn internet, every thread there is I have been unsuccessful in restoring. Here is the awful situation:
Unlocked boot loader
Flashed TWRP
Super SU
Flashed custom ROM
All good however after about a week the phone decided to not reboot into the OS.
Re-flashed TWRP, via fastboot, this worked however ADB wouldn't recognize the device, now its in an infinite boot loop, boot-loader is accessible but just drops into the boot again. the TWRP flash screen appears flickering during boot. No OS on the phone now, just data partitions. No Nandroid backup. I could push a ROM via ADB if I could get the recovery stable. S-ON BTW.
Any advise will be gratefully received.

Related

[Q] Stuck in recovery, can someone please help?

Hi all,
Yesterday I unlocked the boot loader on my htc one x, it worked perfectly first time and I had no problems booting back up. I then tried to follow the instructions to rom the CM11 KitKat 4.4.4 onto the device.
Problem is I have now somehow gotten stuck in recovery, I can get back to the boot loader screen, but then never passed the recovery screen, when I installed the rom.zip file on the device it failed to install correctly. I fear I have now cleared all the rom info on the device and I am in a state of eternal recovery.
I am also working on a Mac, I know it's an android sin, but it's my wife's pc. If I plug the sub cable into the device the Mac doesn't pick it up, although the boot loader changes to fast boot use when plugged in.
Can someone please help me, I am new to this and very frustrated. I just want to get the device back to standard or just back to those screen.
Much appreciated.
Android Newbie CT said:
Hi all,
Yesterday I unlocked the boot loader on my htc one x, it worked perfectly first time and I had no problems booting back up. I then tried to follow the instructions to rom the CM11 KitKat 4.4.4 onto the device.
Problem is I have now somehow gotten stuck in recovery, I can get back to the boot loader screen, but then never passed the recovery screen, when I installed the rom.zip file on the device it failed to install correctly. I fear I have now cleared all the rom info on the device and I am in a state of eternal recovery.
I am also working on a Mac, I know it's an android sin, but it's my wife's pc. If I plug the sub cable into the device the Mac doesn't pick it up, although the boot loader changes to fast boot use when plugged in.
Can someone please help me, I am new to this and very frustrated. I just want to get the device back to standard or just back to those screen.
Much appreciated.
Click to expand...
Click to collapse
Install latest Philz recovery or TWRP or CMW

[Q] Updated firmware using MIKE thread

I've just update my firmware using my thread http://forum.xda-developers.com/showthread.php?t=2696282
I'm S-On and followed every instruction. When the phone boot (everything was succesfull), it was stuck on the HTC welcoming screen.
Then I thought because the rom installed didn't match the new firmware, so I decided to unlock the bootloader, that too was fine. But then when the phone boot up, I again got stuck on the HTC welcoming screen. Then I tried adb to boot into the bootloader to flash the TWRP custom recovery, but nothing to do, adb is not recognising the phone. But the storage of my phone is appearing on windows explorer and the drives were successfully installed automatically.
What should I do, urgent please anyone
Thanks
92davin said:
I've just update my firmware using my thread http://forum.xda-developers.com/showthread.php?t=2696282
I'm S-On and followed every instruction. When the phone boot (everything was succesfull), it was stuck on the HTC welcoming screen.
Then I thought because the rom installed didn't match the new firmware, so I decided to unlock the bootloader, that too was fine. But then when the phone boot up, I again got stuck on the HTC welcoming screen. Then I tried adb to boot into the bootloader to flash the TWRP custom recovery, but nothing to do, adb is not recognising the phone. But the storage of my phone is appearing on windows explorer and the drives were successfully installed automatically.
What should I do, urgent please anyone
Thanks
Click to expand...
Click to collapse
[Resolved]
hold up and down volume keys then power button to switch off device. Then boot into bootloader through volume down and power button. Flash recovery and install rom. Panicked for nothing

[Q] Backup via Fastboot or other non-OS method?

Hello! my M8 was dropped to the floor by my girlfriend some days ago, and suddenly i had no carrier network and it just turned of after 5-10 minutes if it wasn't connected to power somehow. I Backuped up most of it, but apparently not all of my essential data........... most importantly my worktime overview.
Now it is stuck in boot loop, but i can access the bootloader and connect via Fastboot in fastboot, but no ADB.
The most important thing for me is just a backup so i can get a backup of my worktime overview. And then try factory reset.
Do you guys have some suggestion for me? The phone had an unlocked bootloader and TWRP and rooted OS, but i flashed back to vanilla os and relocked the bootloader.

Encryption/Brick randomly

Htc One M8... was running marshmallow sense rom with elementalx kernel.
- S-off
- running Bell marshmallow firmware
- Twrp recovery latest one.
Randomly the phone rebooted while I was using it last night and after that got stuck in a bootloop.
Now it seems to boot up but it goes to a screen where it says "please enter password to decrypt phone" ... I don't have a password so then it tells me to factory wipe the phone.
I can get into Hboot fine... the issue I am having is for some reason along with the rom, the recovery has crashed too... I have tried reflashing a new twrp or even the stock recovery but the recovery just will not boot. Regardless of me flashing the stock recovery... when I try to boot into it, it shows that I am booting into twrp (which makes me assume that the recovery isnt really being flashed)
I tried the RUU method but when I do rebootRUU from fastboot it just boots my phone and its stuck back in the bootloop and doesnt go to Black HTC screen :S.
Kind of stuck... I dont have a windows device otherwise I would try the exe method and lost on how to recover the device. Feels like maybe the flash memory crashed... but its so random
If anyone can help, would be greatly appreciated.
Thanks
so just tried to run a gpe ruu as well... it did the first step of flashing the bootloader and just rebooted to the normal htc bootloader :S
seems like whatever I do nothing is being flashed to any partition... i found the adb command that fixes encryption for aosp roms... but I cannot run adb because I cant boot into recovery :S

Can't boot into recovery with TWRP

EDIT: I FIXED IT. I had to go back to an older version of TWRP[2.7xx] for it to work on my older firmware.
HTC One M8 AT&T running 4.4.2, unable to update because I haven't been on AT&T for quite a long time.
Yesterday I unlocked the bootloader on my M8 for the first time and attempted to install TWRP[EDIT: ver 3.0.2] so that I could root my phone. I have the proper SDK and ADB drivers installed, fastboot is working just fine. I used the following commands:
adb reboot bootloader
fastboot erase cache
fastboot flash recovery twrp.img
From there I have tried both rebooting into fastboot[which is what the TWRP website says to do] and also going back into bootloader and booting into recovery without restarting the phone. Neither option has worked. When booting straight into recovery after flashing the recovery, my phone just says "loading recovery" in pink letters with the HTC logo on the screen and stays like that. HOWEVER, I've somehow managed to get screenshots while force restarting my phone during that, and it shows the right TWRP screen, I just can't see it. Any advice at all would be appreciated. I did search through other forum posts but I could not find my problem of the screen I cannot see.

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