Many people when they first get a Nexus device, choose to unlock the bootloader right away to prevent a mandatory data wipe if they unlock it later. Myself and a few others have encountered a bootloop after doing so. If this happens to you, follow these steps.
1) If your phone is stuck in a bootloop, Hold volume up, volume down & the power button until the phone turns off.
2) Wait a minute as trying to turn the phone back on may be unresponsive.
3) Hold volume up, volume down & power to boot into the bootloader.
4) Toggle to recovery and press the power button.
5) When you see the android laying down: press and hold the power button and immediately press volume up. It should open the menu.
6) Choose wipe data/factory reset. When completed the phone will reboot and should boot to the welcome screen
Hope this helps anyone who has this issue!
If I boot once, then reboot to boot loader then unlock will I be ok? I'm getting mine tomorrow.
Thanks for the heads up. I have no doubt that I will run into this issue and these instructions will help.
Zainiak said:
If I boot once, then reboot to boot loader then unlock will I be ok? I'm getting mine tomorrow.
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Yes.
Suppose that's from the update that happens when you first boot, we all know how well OTAs and unlocked bootloaders get along.
Sent from N7
This is related to the typical Nexus data partition situation: If the data partition is wiped, the partition needs to be regenerated in some fashion before it can be written to, and this can only be done by booting once into the OS. Recovery and bootloader are unable to complete this operation alone.
If you find yourself in the situation of having wiped both system and data, you must flash any bootable OS version to system & boot via fastboot, and boot into it once, before you will be able to install ROMs via recovery again.
This is very important and I do this with every Nexus device on first boot.
Sent from my Nexus 5 using Tapatalk
This help, also had to format "data" because i skipped the first boot and installed the recovery right away
Thanks for this post
I booted mine straight to bootloader when it came and unlocked it with no problems. I wonder why this only happens sometimes?
did those of you who got a bootloop have to download/install the OTA when it finally booted?
I have a Sprint HTC One M7, which recently got an OTA update. I tried to apply this update, but now I can’t boot my phone. It was previously on stock firmware, but unlocked and rooted, and its internal storage was encrypted with a PIN. Now when I try to boot, it shows the decryption password entry screen, but my PIN doesn’t work.
Here are the steps leading up to this situation:
Using Fastboot, flash the stock recovery. Previously, I had TWRP 2.7.0.1 installed, but I went back to stock recovery (from this thread) so that the OTA would work.
Apply the update. This causes the phone to reboot and go through the update procedure. I wasn’t paying attention to the progress bar, so I don’t know if it finished or not.
When I next look at the phone, it’s showing the exclamation mark symbol indicating that the phone has booted into the stock recovery. Instead of entering the recovery, I force-reboot the phone by holding down the power button.
The phone reboots. Now I see the decryption key entry screen, which appears to have been updated in the OTA—the visual style is different from before. I enter my 6-digit PIN, the same one I was using before the OTA to decrypt the phone.
I press the Decrypt button, but after a second the prompt text changes to “The password you entered is incorrect.” Strangely, the number of remaining attempts does not decrement, but remains at 30. I am unable to boot my phone.
I can still reboot the phone to the bootloader menu, and I can enter Fastboot or recovery. However, the recovery is still unable to mount the data partition.
For some reason, I can take screenshots from the decryption prompt screen using Power + Volume Down.
Please help me fix this! I would very much prefer not to lose all my encrypted data, if at all possible.
Hi everyone! So, recently I backed up my LG G4 running the 11-30 nightly and I had to backup and restore because I was messing with a few things on my phone. After I went back to CM14 and went to restore the backup it installed fine but it changed my pattern lock, so now I cant even get into my phone to turn on USB Debugging or Advanced boot. Im just stuck on my lock screen. Does anyone know how I could bypass that or enter into TWRP another way? Thanks!!
I had a similar problem. The solution:
RogerF81 said:
In fact, it suffices to delete locksettings.db in /data/system. @codeworkx explained this workaround somewhere in the official CM thread.
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Click to collapse
Boot to TWRP by holding Vol Down + Power until the logo appears, release Power for 1 second then hold again until the factory wipe screen appears. Follow the directions to wipe (don't worry, this will not erase your data unless the stock recovery is installed.) After 20 seconds or so TWRP will load. Go to Advanced -> Terminal or File Manager to delete the file.
Hey Guys,
I unlocked my bootloader and installed TWRP in order to try to upgrade to Oreo.
After a while i decided to just stop with it and leave it stock.
I relocked the bootloader, but now it is hangs at 99% factory reset. Rebooting the phone just brings it back to factory reset.
How do i get in to Fastboot mode to unlock the bootloader again and see if it will just boot up?
Tried different key combo's but it only boots in to the factory reset procedure.....
1. Connect the usb cable already with the pc
2. Press and hold vol- and the power button
3. Connect the phone with the pc when the screen turns black
4. Still hold the buttons until you can see the fastboot screen
Striike said:
1. Connect the usb cable already with the pc
2. Press and hold vol- and the power button
3. Connect the phone with the pc when the screen turns black
4. Still hold the buttons until you can see the fastboot screen
Click to expand...
Click to collapse
Thanks! But i already tried that. Does not work. Always goes to Factory Reset.
Will let the battery drain for now and see what it does then.
i think you flashed the oreo compatible twrp on your phone this makes your nougat phone stuck in boot loop. Try to flash the nougat compatible twrp or try the stock recovery.
I had a problem just like this.
All I did was wait for the battery to drain while it was on the reset screen, and on next bootup it didn't didn't go to that screen.
z1rqdym said:
i think you flashed the oreo compatible twrp on your phone this makes your nougat phone stuck in boot loop. Try to flash the nougat compatible twrp or try the stock recovery.
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Click to collapse
I can't flash anything that is the problem. Cannot get it into bootloader or fastboot mode or anything.
Deevun39 said:
I had a problem just like this.
All I did was wait for the battery to drain while it was on the reset screen, and on next bootup it didn't didn't go to that screen.
Click to expand...
Click to collapse
I let it die, and then i plug in the charger and it boots. I see the initial setup screen but it then reboots again and goes to the Factory Reset loop again.
Guess i will keep trying
Ok i got a bit further.
When i let it die, and then plug it in it boots to android. But as soon as i reboot it, it will go back in to the Factory Rset procedure.
Also adb reboot bootloader does not send it to bootloader so i can unlock the bootloader.
I also tried putting firmware (UPDATE.APP) on an external SD card, but it will not do anything with that either.
Anyone any other suggestion?? Need to either unlock the bootloader, or somehow flash original firmware/recovery.
Audioffensive said:
Ok i got a bit further.
When i let it die, and then plug it in it boots to android. But as soon as i reboot it, it will go back in to the Factory Rset procedure.
Also adb reboot bootloader does not send it to bootloader so i can unlock the bootloader.
I also tried putting firmware (UPDATE.APP) on an external SD card, but it will not do anything with that either.
Anyone any other suggestion?? Need to either unlock the bootloader, or somehow flash original firmware/recovery.
Click to expand...
Click to collapse
can u boot to fastboot?is frp lock?
player98343 said:
can u boot to fastboot?is frp lock?
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Click to collapse
No unfortunately not. When it is booted after draining it, i can do adb reboot bootloader but it just does not go to bootloader. Just reboots back in to factory reset loop.
Audioffensive said:
No unfortunately not. When it is booted after draining it, i can do adb reboot bootloader but it just does not go to bootloader. Just reboots back in to factory reset loop.
Click to expand...
Click to collapse
how about plug your phone to pc/laptop then power button+volme down?
player98343 said:
how about plug your phone to pc/laptop then power button+volme down?
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Click to collapse
Had no succes with that either.....
Unlocking bootloader can only be done from bootloader itseld right??
Audioffensive said:
Had no succes with that either.....
Unlocking bootloader can only be done from bootloader itseld right??
Click to expand...
Click to collapse
i think you already need to send it to huawei service center since you cant boot to fastboot.
I really hoped there was something i could do since it does bootup after draining the battery.
Somehow the factory reset procedure should be stopped so that it boots up after a reboot. There must be some virtual switch to set or something. Problem is i only have adb to do something.
I managed to fix the issue with a tip from another thread.
After draining it again i let it boot again. Then i did a factory reset from the settings menu.
The phone then rebooted and did a lowlevel factory reset. That also was stuck on 99%.
I then rebooted the phone by long pressing the on/off button. The phone then restarted the lowlevel factory reset and that succeeded.
Now its working normally again
Audioffensive said:
I managed to fix the issue with a tip from another thread.
After draining it again i let it boot again. Then i did a factory reset from the settings menu.
The phone then rebooted and did a lowlevel factory reset. That also was stuck on 99%.
I then rebooted the phone by long pressing the on/off button. The phone then restarted the lowlevel factory reset and that succeeded.
Now its working normally again
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Click to collapse
Hello, I don't understand how you arrived to the menu to select factory reset. For me even if draining battery, it continues to loop in factory reset and stuck 99%. . can you explain the procedure step by step. thank you !
mar72kuss said:
Hello, I don't understand how you arrived to the menu to select factory reset. For me even if draining battery, it continues to loop in factory reset and stuck 99%. . can you explain the procedure step by step. thank you !
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Click to collapse
If after draining it still does not boot normally then this does not work for you unfortunately.
Audioffensive said:
Hey Guys,
I unlocked my bootloader and installed TWRP in order to try to upgrade to Oreo.
After a while i decided to just stop with it and leave it stock.
I relocked the bootloader, but now it is hangs at 99% factory reset. Rebooting the phone just brings it back to factory reset.
How do i get in to Fastboot mode to unlock the bootloader again and see if it will just boot up?
Tried different key combo's but it only boots in to the factory reset procedure.....
Click to expand...
Click to collapse
try to use this service firmware it will update your phone into B364
- put the dload folder into the root of a fat32 formatted SD_Card
- shutdown the phone
- While pressing vol_up + vol_down press power_on button the upgrade will be lunched automatically
if the file does not work please provide us with the exact phone model to get the correct file
RAR1991 said:
try to use this service firmware it will update your phone into B364
- put the dload folder into the root of a fat32 formatted SD_Card
- shutdown the phone
- While pressing vol_up + vol_down press power_on button the upgrade will be lunched automatically
if the file does not work please provide us with the exact phone model to get the correct file
Click to expand...
Click to collapse
Ehhhhmmmm...... I solved this already
I wrote that in a post too......
where is the solution to this problem
I have the same problem, what did you do to solve it?
Hello,
Please i need help i made something wrong, i forget after using multidisabler 2 times to format data. i think this is the reason
I cant boot either in recovery or in download mode anymore, iam stuck at bootlogo
My device is yet not rooted, this was my next step.
After many problems i made a factory reset with fw upgrade by odin. Everything was working till i flashed twrp with vbmeta and usin multidisabler without Format- Data
I cant do anything on the device.
When i want to enter recovery mode the phone vibrate just on the bootlogo but it doesnt enter twrp. Holdin Vol-down doesnt do anything, Vol-up it tries to enter twrp i think but it just vibrate
What can i do?
Damn iam hopeless, i need the smartphone asap....
Please help if possible
Aaah iam rescued, i can go to download mode after restarting holding both vol button then it enters download mode, **** iam happy
but anyway i did flash twrp again to gain access to twrp and doing again multidisabler
but i cant format data it says "Invalid argument"
EDIT: after reflashing fw with home csc it works to fornat but anyway i cant get rid of stuck in the bootscreen, i may live without twrp this time looks like i tried with flashing magisk26.1 from twrp if its a root accesss issue but that havent helped, so i need to flash fw again but with csc file which factory resets
bootloader is of course unlocked
it even cant mount data partition when i go under mount, because i wanted to download the patched AP file for root access
I have the latest version of twrp
twrp-3.7.0_11-2_afaneh92-p3s.tar