dead Power button and unable to boot to recovery - Nexus S Q&A, Help & Troubleshooting

my nexus us is oem unlock and rooted.
My nexus s power button is dead and i was trying to remap the power button to volume up or down using apps. i found one and i flash it with rom recovery. after that i reboot and now the rom stuck at the first stages of booting.
i know how to use fastboot and all the commands, but when i remove and reinsert the battery the phone start booting but i can't boot to recovery because power button is dead.
i want to wipe everything but how?
need to boot to recovery.

Related

[Q] Stuck in CM animation, can boot to recovery.

HTC m8, was running CM12 latest nightly with twrp.
I was trying to revert to an earlier build of CM after failure to install MultiROM was creating UI errors. Now my phone is stuck on the CM animation and I can't reboot to recovery mode to access twrp. Power and volume up reset but don't access recovery mode. USB connection on my computer is not recognized so I can't send adb commands to reboot to recovery. Any help would be greatly appreciated.
You need to use power + volume down to get into recovery. Press and hold power + volume up until the phone reboots. As soon as it restarts press and hold power + volume down until it boots to hboot.
Thanks!
I thought I had tried that earlier but apparently my timing was off.

Manually flashed 6.0 stock images, but only get dead android for recovery

I have searched around but cannot find a solution. I can't seem to get a working recovery after flashing stock images with and without TWRP 2.8.7.1.
I followed these steps to upgrade to Android 6.0 after verifying the md5 checksum of my download:
adb reboot bootloader
fastboot flash bootloader bootloader-hammerhead....img [it looks the same as before, but I did it anyway]
reboot bootloader
fastboot flash radio radio-hammerhead....img
reboot bootloader
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
....I have also tried with and without flashing cache
fastboot reboot
...then I go back into the bootloader and try to access recovery, but I only get the dead android with the red triangle.
Is anyone else having this problem? Does anyone have a suggestion for a fix?
I'm having the same problem with my Nexus 7 (2013).
Hold down the Power button and press Volume Up.
slackhouse said:
Hold down the Power button and press Volume Up.
Click to expand...
Click to collapse
When I see the dead android? When the phone is off? When the phone is booted into the system?
The dead Android means you have stock recovery installed. When you see the dead Android, hold down the power button and push the volume up then release and you will receive the stock recovery menu
funnel71 said:
The dead Android means you have stock recovery installed. When you see the dead Android, hold down the power button and push the volume up then release and you will receive the stock recovery menu
Click to expand...
Click to collapse
Thanks for the description, but it didn't work. If I hold those buttons long enough, it just loops on the "Google" screen, and if I let go, it boots into the system.
After flashing other times, I have been able to either get the recovery menu or enter TWRP when I choose Recovery from the bootloader menu. Not this time though.
Well, I re-extracted the recovery.img file and flashed it - same problem. I decided to try flashing TWRP again. After flashing I rebooted the bootloader (probably not necessary), then chose Recovery and it booted TWRP like I normally expect.
Still not sure what is happening with the stock recovery. For now I don't have to worry - I'm getting my backup.
Sometimes it doesn't work right away, I keep switching between the volume buttons and it eventually pops up. Only need to tap the volume key, no need to hold it when at the dead Android.
Good luck
treefrog321 said:
Well, I re-extracted the recovery.img file and flashed it - same problem. I decided to try flashing TWRP again. After flashing I rebooted the bootloader (probably not necessary), then chose Recovery and it booted TWRP like I normally expect.
Still not sure what is happening with the stock recovery. For now I don't have to worry - I'm getting my backup.
Click to expand...
Click to collapse
Getting into stock recovery from the dead android can be very tricky. As stated above, from the dead android screen, you want to hold the Power Button and press Volume Up quickly, then release. It sounds like you are holding the Power Button way too long which is causing it to do a reboot. I had the same issue the first few times.
Below is a video of someone doing it. On the video, he says to press volume up, volume down, and the power button at the same time until the recovery menu works. But, it is just the power button and volume up. The video will just show you how quickly to press the button combination.
https://youtu.be/DRp5jJO34PE?t=471
I don't recall having any difficulty in the past, but I think I get it now. Thanks for the tips guys.

Can't Boot to Download Mode Or Recovery

I've formatted the tab using latest twrp recovery after that I did a restart using recovery and it was taking long to boot back to recovery and force restarted it by holding power button.
Now I can't boot to reocovery or download mode by holding volume down + power button & up + power, it does boot into the usual Galaxy tab logo and then nothing.
If i hold the power button to long it's just boot back again to the tab logo.
When I put the charger to the device it just stuck on the battery logo.
I've also removed the back part and removed battery and tried again, But still same...
Also tried to flash the odin when it's stuck on galaxy logo, odin does recognize the connection but can't flash anything!
Is there any other way to boot back to download mode????
EDIT :
I did removed the back part of the tab to remove battery and try inserting, but still I was not able to boot to download or either recovery mode by hold power + volume buttons.
I think maybe the power button or the volume button has some issue that's why it was not able to boot into recovery/download mode.
After that I've drained the device battery and reconnected it to device charger and it automatically booted into download mode.
And flashed the stock rom then switched to a custom rom!
Problem solved for now, I'll update the thread later!
rakeshbro said:
Problem solved for now, I'll update the thread later!
Click to expand...
Click to collapse
Please elaborate the method you used to restore you tab
Regards

Bootloop. How can i enter Download Mode?

Hello friends.
my U12+ was on 1.15.401.4 and was rooted with magisk. Today i wanted update magisk and the phone stuck into bootloop. But i was able with Power Button and then Volume Button to boot into Download Mode.. So i decided to update firmware. I downloaded the 1.14.401.4 RUU (cause i want to can OTA) and decryped it. installed boot and system image. Now Iam stucking into a bootloop!
Finally i had 0% Energy. So i Could Boot into downloadMode..
But after Flashing stock boot and system...bootloop...
Writing this also for other people looping:
1) In the unlocked bootlader warning screen: Press the power button once to PAUSE boot
2) Wait ca. 20sec and the phone will shut down
3) Press and hold the power button until you feel a vibration (not the initial one but after around 3-5sec)
4) Immediately let go and press and hold the volume UP button to reach bootloader

Reboot to recovery not working

After shutting down when I press & hold power & volume up keys the phone keeps restarting at android one logo. If I release power key after screen on the phone just restarts in recovery. This method is posted on nokia official site. Is there any other method to reboot to recovery?
Note: My phone is stock with stock recovery.

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