I had my phone rooted on old Oreo version and wanted to reinstall the latest factory image. While I was doing this my laptop got a BSOD and the installation didn't fully finish. I redid the install but now my phone is in a bootloop. It will go past the Google logo but afterwards will loop on the dead Android guy with the ''No command'' message, same happens when I try to enter recovery mode. Is there something I can do?
I would flash TWRP and try wiping all including internal. Sounds like one of the partions is corrupted. You could do it with fastboot in bootloader mode but not sure of the commands.
teunnk said:
I had my phone rooted on old Oreo version and wanted to reinstall the latest factory image. While I was doing this my laptop got a BSOD and the installation didn't fully finish. I redid the install but now my phone is in a bootloop. It will go past the Google logo but afterwards will loop on the dead Android guy with the ''No command'' message, same happens when I try to enter recovery mode. Is there something I can do?
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You're probably not used to the stock recovery. The no command droid is normal. Watch this video, and see if you can get to recovery or bootloader.
Hi,
I did a TWRP wipe (everything checked) to prepare for a restore to stock, but my device is now stuck at the very first "Google" screen with the pad lock icon at the bottom. How do I get it to boot?
goister said:
Hi,
I did a TWRP wipe (everything checked) to prepare for a restore to stock, but my device is now stuck at the very first "Google" screen with the pad lock icon at the bottom. How do I get it to boot?
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So since everything was checked, that means you wiped the system partition. The device will not boot if you do that unless you flash a factory image via fastboot or new ROM via TWRP
OK, I thought wiping /system would just bring it back to factory state. 2 questions now
1. How do I get to recovery when it's always stuck at the Google screen with no adb access? Would I have to wait for the battery to run out (hence turn off), charge it for a while, then use the buttons to boot to recovery, or is there a faster way?
2. I am actually trying to revert to stock ROM (downloaded at https://developers.google.com/android/images#angler) by following step 10 of the Heisenburg guide (https://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928) which advises me to use fastboot to flash the individual images. In my case, how do I boot to fastboot?
OK, so I managed to boot to the bootloader and run the following commands as per the Heisenberg guide (using the stock MTC20L firmware)
Code:
fastboot flash bootloader C:\angler\images\bootloader-angler-angler-xx.xx.img
fastboot reboot-bootloader
fastboot flash radio C:\angler\images\radio-angler-angler-xx.xx.img
fastboot reboot-bootloader
fastboot flash boot C:\angler\images\boot.img
fastboot erase cache
(above command is unnecessary on Android 7.1.2 and above)
fastboot flash cache C:\angler\images\cache.img
(above command is unnecessary on Android 7.1.2 and above)
fastboot flash recovery C:\angler\images\recovery.img
fastboot flash system C:\angler\images\system.img
fastboot flash vendor C:\angler\images\vendor.img
Everything was successful, and I did a fastboot reboot after that.
However, my device still doesn't boot up. This time. It's boot loops for a few times before turning off.
I tried booting up to bootloader with power/vol-. Curiously, I can now only do this when cable is connected. If cable is disconnected, the orange LED just blinks once when power button is pressed, and nothing happens. Once cable is connected, then I'm able to boot up to bootloader with the button combination. I then retried the flash process again, but still no go. I noticed after fastboot reboot that the orange LED blinked a few times before rebooting and boot looping.
Kinda stuck now, any ideas?
Try booting into recovery and doing a factory reset. I've had that happen to me a few times after flashing factory images and a wipe in recovery always fixed it.
Just for future information: if at any time the device is stuck in a bootloop you can get it to robot into recovery by holding the power and volume down buttons for 10 seconds, or get it to boot into bootloader by holding power and volume up buttons for 10 seconds.
Face_Plant said:
Try booting into recovery and doing a factory reset. I've had that happen to me a few times after flashing factory images and a wipe in recovery always fixed it.
Just for future information: if at any time the device is stuck in a bootloop you can get it to robot into recovery by holding the power and volume down buttons for 10 seconds, or get it to boot into bootloader by holding power and volume up buttons for 10 seconds.
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Thanks. Booting into stock recovery shows an exclamation sign with "no command", since I don't have TWRP anymore. Would I need to first flash TWRP before I can do a factory reset?
I just tried flashing to the same sock firmware as before the problem happened (7.1.2 N2G47W) but still same problem. I notice that after the Google logo disappears and the screen goes blank, the orange LED blinks 10 times before rebooting.
Edit: Tried factory resetting in stock recovery (by holding down power button and pressing vol+), the rebooting after factory reset. Still getting a boot loop.
OK I solved the problem. Apparently if you reboot after the flash, you need to disconnect the USB cable, else it will boot loop.
OK I solved the problem. Apparently if you reboot after the flash, you need to disconnect the USB cable, else it will boot loop.
goister said:
OK I solved the problem. Apparently if you reboot after the flash, you need to disconnect the USB cable, else it will boot loop.
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brother help me! i am facing same issue
first little info abt my device.
my device was running on android nougat with twrp recovery installed but the device was not rooted.
so get back to stock and install oreo I followed every step given on http://www.androidexplained.com/nexus-6p-revert-stock/ but somehow my phone is stuck at bootloop with no recovery installed.
Please help me here.
As per the Heisenberg guide, if you don't install root (SuperSU or Magisk), TWRP won't stick, so you'll go back to stock recovery.
For me, simply unplugging the USB cable after rebooting after a flash solved my problem. For some reason, if the cable is connected during reboot, it would boot loop.
brother, somehow I managed to install twrp. but everytime I touch it 2-3 times the phone gets switched off.
then it keeps rebooting to 'Google' logo.
can you tell me what should I do now?
@goister Hi how you manage to get to recovery when it's always stuck at the Google screen with no adb access. Please I am stuck there
tommast said:
@goister Hi how you manage to get to recovery when it's always stuck at the Google screen with no adb access. Please I am stuck there
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hi, did youmanage to solve this problem? I am aving the exct same problem. Disconnecting the ucb isnt working for me
I was tinkering with my Z500m after a factory reset seemed to cause issues. As I could not boot into recovery I ended up, stupidly it now seems, running "fastboot erase cache", which led to a boot loop on the Asus splash page. I then thought I could do a factory reset through fastboot by erasing system, data and cache (I may have read this somewhere in xda), but this resulted in the tablet booting just to Asus splash and then straight to the 'dead android' with the red triangle and exclamation. This flashes every few seconds. All combinations of post, vol up, vol down, result in nothing, and I cannot get it to boot to fastboot or recovery, let alone a normal boot. If I connect it to my pc, there is a beep from the pc suggesting it is not totally bricked.
I have scoured this site and other useful web sites, but can find no solution. Does anyone have anything to suggest?
Hello, have you found a solution for this problem ?
Hello!
I just repaired the display of my OP2 and when turning it back on it went straight into bootloop. Only showed the OP Logo and android on the bottom. ADB obviously doesnt work and tried to all partitions via fastboot to get fresh start. After completely resetting I unlocked the bootloader again just to be sure. Then I tried to flash twrp 3.2.1-0. it say dtb not found error. I tried a twrp 3.0.0-0 and it said succesfully flashed but after automatically rebooting the screen just turns black. I can the into fastboot mode or into bootloop can't do anything else. I also tried the MSM8994DownloadTool.exe but it just returns into bootloop again or turns black.
Help pls
I performed a factory reset from within the OS and when it restarted it was stuck on the Samsung splash page. After this I performed a reset from the recovery menu. Now the phone was stuck in a boot loop. At this point I re-flashed the factory ROM from ODIN and it is again in a boot loop. Sometimes it makes it to setting up the apps but just resets again.
For some reason the phone attempts to install an update whenever I enter the recovery and once there it states that it cannot locate files. The location of these files is "E:". I have no idea why it cannot locate anything it looks for and why " E: " is not there if it needs that location as the phone is completely stock.
Did you flash the HOME-CSC or the normal CSC file? I too got into a bootloop after a factory reset from the recovery, so flashing with the CSC file could be useful I guess. Recovery checking for an update always happens for me and it goes to recovery normally after checking.