phone factory reset - One (M8) Q&A, Help & Troubleshooting

Hello All,
my phone was bootloader unlocked, rooted, installed with custom ROM and custom recovery.
Selling it to my friend, I did a phone reset in the phone setting menu.
Seems like I have done the wrong way? should have done in the custom recovery menu (TWRP)?
Now seems like I can not boot up to recovery mode anymore, by pressing power & volume down button, it always boot up straight to normal state.
Questions:
Have I lost the custom recovery?
How do I re-install? go thru ADB mode?
Thanks!

That button combo reboots to bootloader, not recovery (which doesn't have a button combo to boot directly to). Its a subtle difference (recovery vs. bootloader), but important. Its nearly impossible for the phone to not be able to boot into bootloader (if the bootloader was damaged, you wouldn't even have the screen coming on). If that is what you are experiencing (can't get into bootloader), you are probably just doing the button combo incorrectly: Hold vol up and power buttons until the phone reboots. When the screen goes black, but before the white HTC logo screen appears, let go of those buttons, and only hold vol down. Don't let go of vol down until you see the bootloader screen. If the phone boots normally, you likely just got the timing wrong, either started pressing vol down too late, or let go of it too early. Just repeat until you get into bootloader.
Alternately, within OS (and debugging enabled) you can do:
adb reboot-bootloader
or
adb reboot recovery
Now, if you get into bootloader, select recovery, and TWRP still doesn't boot. Then yes I'd recommend fastboot erase cache, and re-install TWRP by fastboot.

Pardon me,
I used the wrong term, I mean boot to bootloader.
I also pressed the wrong buttons, vol down and power instead of vol UP and power.
Many thanks for your advise.

Related

Help I just bricked my one x can't even fastboot

I have unlocked my bootloader then install the recovery.
And I am flashing a ROM ,but as I came from Atrix the step was to flash from recovery
I didn't read the instruction and flash the ROM through recovery without flashing boot.img first
Now, I can't boot to my ROM (It stuck at HTC quietly brilliant screen)
So, I reboot it and try to enter fastboot ,but not either. I can't get to fastboot. pressing volume down and power
Then, I was unable to turn it off. I disassemble and take the battery out. and charge it for an hour now. But, still no luck can't get to fastboot.
Anyone can help me.
I am so dumb if I have read the instruction, I wouldn't brick.
I don't know what pure doing wrong, but holding down power and volume down will get you to hboot. From there you can go to fastboot and then flash the boot.img.
Not even hboot too. press volume - and power doesn't do anything for me. or do they need more battery?
Then you're doing it wrong or your buttons are broken.
Keep hold of volume even after it reboots. Don't let go until you're in hboot.
When I first installed custom ROM I made the same mistake and didn't flash boot.img separately, causing the device to just hang at HTC screen you described, or being in a constant bootloop. However I was able to get into bootloader and sort things out. I know it's something basic, but are you making sure you hold that volume down + power button long enough?
Oh GOD! I got it! It boot into hboot and I can fastboot now. I think the button are hard to press so, I can't press it correctly the first time. THANKS

Phone stuck in TWRP recovery lock screen and can't force power-down

I am in a bit of a predicament. When I tried power-off my phone from the TWRP reset menu TWRP froze up. I could click any of the buttons on screen (the clicking/tapping animation did go off) but got no repsonse. When I tried to do a forced power-off by holding the power button, the only thing that happened was the screen locked. Now I am stuck on the lock screen because for some reason the phone won't unlock when I slide to unlock it. Am I screwed and will have to wait until the battery goes dead to be able to get back to the bootloader? I tried to flash TWRP 2.8.6.0 inside TWRP but it flashed to the boot partition instead. I have a backup but I need to first be able to flash the new recovery to restore it.
Press vol up+vol down + power button for 15 sec or more
When screen goes black
Press voldown + power to enter bootloader
Thanks for the quick response. Sadly I ended up calling it a night soon after posting so I ended up letting the battery die.

Possibly bricked HTC One M8

Ok,
Was installing the viper rom on my M8, and for some reason, now my phone is stuck in a boot loop. Obviously the install went pear shaped. But now I cant even boot the phone into recovery mode.
Boot sequence now is: Google lettering appears on screen, followed by green android with the blue spinning shape in its chest, then the green android with the red triangle and black exclamation mark appears and the whole thing loops again.
When plugged into the PC its not recognized so I cant use adb to boot into recovery or try load another rom/wipe cache etc.
I've tried all combinations of power button & volume up/down to break the boot sequence, no joy.
Any ideas how to resolve, or do I have a very expensive paper-weight?
Cheers,
sombaht
Rest assured, if the screen comes on, the phone isn't bricked.
Red triangle with exclamation point is stock recovery.
What was your exact sequence, in detail? From bootloader unlock, install custom recovery, etc.
Was the phone on Lollipop when you unlocked the bootloader?
To reboot into bootloader (not recovery, there is no button sequence to boot directly into recovery on this device):
1) Hold power and vol up for several seconds to force a reboot
2) The moment the screen goes black to reboot, let go of the buttons, and only hold vol down
3) Don't let go of vol down until you are on the bootloader screen
4) Failure to get into bootloader is virtually always user error. You either started pressing vol down too late, or let go of it too early. Just repeat until you get it right.
But from there, as mentioned it sounds like you are on stock recovery. You will probably need to flash TWRP again via fastboot in order to do much more.
Did you flash a custom recovery before you flashed the rom?? Can you boot in the bootloader mode (turn of Device completely- turn on again and hold volume down all the time.. then you should be in the bootloader)?
And your phone is not really bricked
Edit: damn to slow should not write on the phone
sombaht said:
Ok,
Was installing the viper rom on my M8, and for some reason, now my phone is stuck in a boot loop. Obviously the install went pear shaped. But now I cant even boot the phone into recovery mode.
Boot sequence now is: Google lettering appears on screen, followed by green android with the blue spinning shape in its chest, then the green android with the red triangle and black exclamation mark appears and the whole thing loops again.
When plugged into the PC its not recognized so I cant use adb to boot into recovery or try load another rom/wipe cache etc.
I've tried all combinations of power button & volume up/down to break the boot sequence, no joy.
Any ideas how to resolve, or do I have a very expensive paper-weight?
Cheers,
sombaht
Click to expand...
Click to collapse
My friend, did you flash it using stock recovery or custom recovery? if you did flash it using stock recovery you will meet this kind of problems. I suggest you try power button and down if im not mistaken and go to hboot and fastboot usb and connect to adb, type fastboot devices in cmd if it detects your device then you can flash TWRP , find any kind of custom rom for M8 and flash it. I also assume your bootloader is unlocked and driver is installed in your PC.
Problem solved. Redpoint73's key press combination worked!
Cheers,
sombaht

No ROM, can't access bootloader, stuck in bootloop

Hey guys,
Ok, this is a tough one for you. I'm actually not 100% convinced that my phone isn't hard bricked. But every where I look for, it says, it's only hard bricked if your phone wont turn on at all and that's just not true in my case. So here's the story:
My volume-up button is kind of screwed, I don't know, what happened to it, but one day, it just started being triggered randomly until it just didn't work at all anymore. It wasn't that big of a problem, since I was still able to change the volume by hitting the volume-down button once and changing the volume by the on screen slider. I was running SkyDragon GPE V5.5 for quite a while now.
But now I wanted to upgrade to Android 6.0, so I downloaded the firmware from here. Next I rebooted to bootloader switched to fastboot and used "sudo fastboot oem rebootRUU" and "sudo fastboot flash zip firmware.zip" twice. So far so good, everything went fine and I actually even am able to see the new Google splashscreen.
So now I want to flash this ROM. But, for some reason, the touchscreen doesn't work anymore, even though it's activated in the CWM Philz Touch GUI settings enabled. Alright, so I "wipe to install a new ROM" and navigate to the zip file to install it and it starts the aroma installer, which I can't control since the touchscreen doesn't work. So, I'm kind of frustrated by now, I flash TWRP, because, maybe here, the touchscreen works. I flash it and try to reboot into it. But it doesn't work, it just stays at the Google splashscreen, I can restart by holding down the power button but it will just go back to the Google splashscreen. After a couple of tries I actually get it to turn off, so I hold down power and volume down to get into the bootloader but it just goes back to the splashscreen.
I can't get to the bootloader, I don't have a ROM installed and I can't get into the recovery. Is there anything I can still do or is everything lost?
Which TWRP version ? You need to use 2.8.7.0
You can't get to bootloader because of the timing when pressing power & volume down button.
If you can turn it off, press and hold volume down button then press power button until it vibrates then release the power button.

Bricked

My 7-year old was playing a game on my wife's 3a XL tonight and it shut off. Now it's stuck in a bootloop.
I tried to boot into Recovery, but was greeted with the busted android screen. So I tried to boot into Rescue, with the same result. The bootloader is still locked, so all my attempts to flash factory images or boot into stock boot, I am greeted with the "not allowed" error.
Any ideas how I can recover this, or is it completely bricked?
If your bootloader is still locked you should be able to sideload the stock OTA. I've never heard of not being able to boot to stock recovery either. What method did you use to get there?
derekr44 said:
My 7-year old was playing a game on my wife's 3a XL tonight and it shut off. Now it's stuck in a bootloop.
I tried to boot into Recovery, but was greeted with the busted android screen. So I tried to boot into Rescue, with the same result. The bootloader is still locked, so all my attempts to flash factory images or boot into stock boot, I am greeted with the "not allowed" error.
Any ideas how I can recover this, or is it completely bricked?
Click to expand...
Click to collapse
When you reach that screen on recovery you hold the power button and tap the vol + button and your options should show up. Just factory reset the device.
luigi90210 said:
When you reach that screen on recovery you hold the power button and tap the vol + button and your options should show up. Just factory reset the device.
Click to expand...
Click to collapse
Thanks. Didn't know how to bring the menu up.
ctfrommn said:
If your bootloader is still locked you should be able to sideload the stock OTA. I've never heard of not being able to boot to stock recovery either. What method did you use to get there?
Click to expand...
Click to collapse
I tried to boot to TWRP but couldn't because the bootloader is locked. So I tried using ADB commands to sideload through Rescue, but it only said "error: closed".
Ended up doing a factory reset. (running now)
Haven't seen you in awhile
Well well.... thought i recognized that username. Good to see you again.
Bricked help
I cannot get my phone into fastboot or recovery. It stuck on the white google loading screen loop. I hold the power and volume down and it goes into fastboot but if I release the volume down button to scroll (while holding the power button) it will then go black and go back to the google white loading screen. If I hold down the volume down button and release the power button it will restart back to the fastboot page. If I release both then it will restart and go back to the white google screen. If I do power and volume up it goes to the "andriod no command" sreen then back to the googe white screen. In sum, is my phone recoverable?
brettscott648 said:
I cannot get my phone into fastboot or recovery. It stuck on the white google loading screen loop. I hold the power and volume down and it goes into fastboot but if I release the volume down button to scroll (while holding the power button) it will then go black and go back to the google white loading screen. If I hold down the volume down button and release the power button it will restart back to the fastboot page. If I release both then it will restart and go back to the white google screen. If I do power and volume up it goes to the "andriod no command" sreen then back to the googe white screen. In sum, is my phone recoverable?
Click to expand...
Click to collapse
When in fastboot, don't hold the power button down to scroll. Is your bootloader locked?
Tulsadiver said:
When in fastboot, don't hold the power button down to scroll. Is your bootloader locked?
Click to expand...
Click to collapse
I'm guessing its locked because the phone is completely stock. When I get to fast boot I dont hold down the power button, but if I hit the volume up or down it instantly goes back to the google white screen and starts the loop over.
brettscott648 said:
I'm guessing its locked because the phone is completely stock. When I get to fast boot I dont hold down the power button, but if I hit the volume up or down it instantly goes back to the google white screen and starts the loop over.
Click to expand...
Click to collapse
When on the bootloader screen can you fastboot a full image to the phone?
Said another way, try to download the full Google image.. not the ota... Setup a computer with fastboot and driver's boot the phone into bootloader mode and try to run the flashall.bat
brettscott648 said:
I cannot get my phone into fastboot or recovery. It stuck on the white google loading screen loop. I hold the power and volume down and it goes into fastboot but if I release the volume down button to scroll (while holding the power button) it will then go black and go back to the google white loading screen. If I hold down the volume down button and release the power button it will restart back to the fastboot page. If I release both then it will restart and go back to the white google screen. If I do power and volume up it goes to the "andriod no command" sreen then back to the googe white screen. In sum, is my phone recoverable?
Click to expand...
Click to collapse
Try-Once in bootloader scroll to recovery and press power button. When you see Android on his side hold power button and press volume up button. You should now be in stock recovery. From there you can adb or factory reset.
Edit- to get to bootloader power off phone then hold power and volume down buttons at the same time.

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