Nexus 6p with custom recovery is in bootloop! - Nexus 6P Q&A, Help & Troubleshooting

Hi there! I recently got my first android phone so wanted to install Lineage os 15.1 but messed it up right away as it's in now in boot loop! Here's what I did:
It was on Android 8.0 angler-opr5.170623.011-factory-0e60ceb6 but I unlocked its boot loader and installed custom recovery and I successfully flashed in the fastboot , vendor, radio and boot loader from Lineage OS 15.1 thread, now instead of following the rest of instructions, I madly decided to reboot the device using fastboot reboot and now I don't see anything except these colored circles which is what boot loop probably is! Please help me find a solution! Thank you!
edited: I have successfully entered into bootloader mode but don't know how to proceed!

I'd flash all the stock firmware in bootloader and start over. Grab the latest firmware package from Google's site, extract it, then run:
fastboot flash bootloader bootloader.img (name changes with version)
fastboot reboot-bootloader
fastboot flash radio radio.img (name changes with version)
fastboot reboot-bootloader
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash vendor vendor.img
Reboot to system
You'll probably have to flash your custom recovery again in bootloader after the first boot. It usually reverts back to stock.

https://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928/page1
Part 10 in the thread above^
I recommend you installing an easy official ROM.
With them all you need to do is a clean flash of the ROM

Since I'm still a noob so I need to muster up courage to proceed but I really appreciate your valuable input guys!! Cheers!! :good:
edited: I have successfully installed stock firmware! cheers!

Related

help soft bricked stuck on animation tried many things no luck

as the tittle says... i am soft-bricked, stuck on google animation.. I did a install of the full android rom 1.4 from zulu99 and everything worked like a champ but i wanted to go back to stock for the kids and now i am stuck
I can access fastboot and recovery on the device and compute recognizes it also..
I downloaded the stock image for marsh 3.2.0 and i flashed all the required files:
fastboot flash staging blob
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash vendor vendor.img
fastboot reboot
it reboots and goes to the google animation and it just stays there!!!(left it there for a day!!!) i also tried to flashing fastboot flash tegra210-foster-e-p2530-0930-e02-00.dtb and did not fix it..
also tried to flash 3.1.0 same steps and no go... i know my adb files are up to date... any ideas?
I was able to flash full android 1.4 from zulu again and works like a champ but i need stock for the kiddos.
try flashing twrp recovery from there wipe system and data partition then reboot into fastboot flash 3.2 again
i was stuck at the boot animation about a month ago after the 3.2 update.... see my post in this thread:
http://forum.xda-developers.com/shi...ion-screen-t3263143/post67564062#post67564062
please note: i used the 3.1 recovery image because the 3.2 image had not been released yet. have not tried it with the newer 3.2 image
also, if you follow my post and install the 3.1 image....be sure to flash the files in the order posted! some will flash quickly, but one or two took awhile to complete, so be patient and wait for each step to finish before moving on to the next.
yes, i saw ur post and how you solved it and i did try the same thing and it did not fix it.. it just gets me to the animation screen... i am gonna try to load twrp from fastboot, wipe.. then re install everything and once done, i will try to fastboot -w and see if that helps me...
foomanjackel said:
i was stuck at the boot animation about a month ago after the 3.2 update.... see my post in this thread:
http://forum.xda-developers.com/shi...ion-screen-t3263143/post67564062#post67564062
please note: i used the 3.1 recovery image because the 3.2 image had not been released yet. have not tried it with the newer 3.2 image
also, if you follow my post and install the 3.1 image....be sure to flash the files in the order posted! some will flash quickly, but one or two took awhile to complete, so be patient and wait for each step to finish before moving on to the next.
Click to expand...
Click to collapse
lalord69 said:
yes, i saw ur post and how you solved it and i did try the same thing and it did not fix it.. it just gets me to the animation screen... i am gonna try to load twrp from fastboot, wipe.. then re install everything and once done, i will try to fastboot -w and see if that helps me...
Click to expand...
Click to collapse
if you un pack the nvidia recovery image there is a scipt inside caled flashall.bat one of the steps run in there is a reboot to fastboot after you flash the boot.image
flash staging blob
fastboot flash boot boot.img
fastboot reboot
adb wait-for-device
adb reboot bootloader
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash vendor vendor.img
fastboot reboot
echo Press any key to exit...
pause >nul
exit

Switching between N and MM roms

Good morning, (at least where I'm at) I want to test out a Nougat rom or two and I am currently on a Marshmallow rom (specifically Resurrection Remix). I know I have to flash the radios for Nougat, and also the vendor image. However,if I end up going back to my old rom will I have to flash MM radios again or will the new radios still work? Also will there be any other problems when going between Nougat and MM? I don't believe this question has been asked. At least I could not find it. If it was feel free to just leave the link below! Thanks for you help!
Hi mate.
Radios are backwards compatible, so the Nougat radio will work on MM, however in case you want to go back you can also do it.
About downgrading from N to MM this are the steps I used to return to stock MM. The only thing that cannot be downgraded is the bootloader.
1. Enabled OEM unlock in developer options.
2. Booted into bootloader and used "fastboot flashing unlock" to unlock bootloader.
3. Rebooted phone and went through initial setup (Still in Nougat).
4. Booted into bootloader and flashed radio.img and rebooted bootloader.
5. In bootoader, I booted TWRP without flashing it using "fastboot boot twrp.img"
6. In TWRP I did a factory reset, then went into advanced wipe and marked all the options and proceeded to wipe. Finally I used the option of wipe data.
7. Booted into bootloader again from the options in TWRP, and started doing the following commands:
a. fastboot flash boot boot.img
b. fastboot erase cache
c. fastboot flash cache cache.img
d. fastboot flash recovery recovery.img
e. fastboot format system
f. fastboot flash system system.img
g. fastboot erase vendor
h. fastboot flash vendor vendor.img
i. fastboot format userdata
8. Then proceeded to boot the phone and now I'm running MM again.
You do need only this...from Marshmallow just update to the last Nougat version NRD90U, with the stock factory image...then you can with a custom recovery, switch between N and M without any problem...just flash custom via recovery and it works...no need to flash boot, bootloader, vendor ecc any time... only rom
Thanks, if i would have known that i would have updated my stock to Nougut first before unlocking, when i get home tonight i will go back to stock and update. Then i will reflash twrp and my custom rom. Thanks!

nVidia Shield 2015 bricked?

I recently updated to 5.2 and everything seemed to be fine andworked. A few days later, the device was in a boot loop. I downloaded the Stock Rom from nVidia site (NVIDIA SHIELD ANDROID TV Recovery OS Image 5.2.0 2017/06/15) and flash it using the following commands:
fastboot flash staging blob
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash vendor vendor.img
fastboot reboot
Everything flashed fine, but the device is still in a boot loop. Any suggestions?
Thanks!
vuser74 said:
I recently updated to 5.2 and everything seemed to be fine andworked. A few days later, the device was in a boot loop. I downloaded the Stock Rom from nVidia site (NVIDIA SHIELD ANDROID TV Recovery OS Image 5.2.0 2017/06/15) and flash it using the following commands:
fastboot flash staging blob
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
fastboot flash vendor vendor.img
fastboot reboot
Everything flashed fine, but the device is still in a boot loop. Any suggestions?
Thanks!
Click to expand...
Click to collapse
Flash TWRP, make a Full Wipe, Restart to the bootloader and flash the Stock Rom again.
LM209 said:
Flash TWRP, make a Full Wipe, Restart to the bootloader and flash the Stock Rom again.
Click to expand...
Click to collapse
Thanks for the great suggestion. I'll remember this for next time. I ended up RMA the device.

Moto G4 only boots in fastboot

Hi,
I have a problem with a Moto G4. I tried to root the device and think I f***** up a bit.
After successfully installing TWRP I tried to install SuperSu using adb sideload and afterwards the device wouldn't boot anymore. Only fastboot and the recovery are still working. If I try to boot the device it just turns off. A factory reset didn't help.
I tried installing a LineageOS but nothing changed. It still boots into fastboot.
Can anybody help?
squanch123 said:
Hi,
I have a problem with a Moto G4. I tried to root the device and think I f***** up a bit.
After successfully installing TWRP I tried to install SuperSu using adb sideload and afterwards the device wouldn't boot anymore. Only fastboot and the recovery are still working. If I try to boot the device it just turns off. A factory reset didn't help.
I tried installing a LineageOS but nothing changed. It still boots into fastboot.
Can anybody help?
Click to expand...
Click to collapse
I forgot to say that I at first didn't install supersu systemless.
After I noticed that the device wouldn't boot anymore I tried installing it again systemless.
squanch123 said:
I forgot to say that I at first didn't install supersu systemless.
After I noticed that the device wouldn't boot anymore I tried installing it again systemless.
Click to expand...
Click to collapse
Hmm, did you wipe your system and data in TWRP before flashing LineageOS? You do not require root to flash LineageOS, just an unlocked bootloader and a compatible TWRP recovery (taking care to note if you need the 32 bit or 64 bit TWRP recovery for the respective custom ROM).
Also, with rooting on our G4/Plus, if you are on stock Nougat, you must flash a custom kernel (e.g. ElementalX) before you root. You'll otherwise experience the boot failures you're experiencing. Thus, to root on stock Nougat, unlock bootloader, flash/boot TWRP, backup, then flash ElementalX, then flash SuperSU/magisk.
Without knowing the current state of your device, I would suggest re-flashing your device with the stock firmware. Can you remember what stock firmware you had on your device before rooting initially?
echo92 said:
Hmm, did you wipe your system and data in TWRP before flashing LineageOS? You do not require root to flash LineageOS, just an unlocked bootloader and a compatible TWRP recovery (taking care to note if you need the 32 bit or 64 bit TWRP recovery for the respective custom ROM).
Also, with rooting on our G4/Plus, if you are on stock Nougat, you must flash a custom kernel (e.g. ElementalX) before you root. You'll otherwise experience the boot failures you're experiencing. Thus, to root on stock Nougat, unlock bootloader, flash/boot TWRP, backup, then flash ElementalX, then flash SuperSU/magisk.
Without knowing the current state of your device, I would suggest re-flashing your device with the stock firmware. Can you remember what stock firmware you had on your device before rooting initially?
Click to expand...
Click to collapse
Hi, thanks for your reply
Yes, I wiped system data and cache before flashing lineage. I just tried it again and I am still stuck in fastboot.
Unfortunately I don't remember the stock firmware version. Should I just try to flush the custom kernel and supersu afterwards?
squanch123 said:
Hi, thanks for your reply
Yes, I wiped system data and cache before flashing lineage. I just tried it again and I am still stuck in fastboot.
Unfortunately I don't remember the stock firmware version. Should I just try to flush the custom kernel and supersu afterwards?
Click to expand...
Click to collapse
Hmm, did you know if the flash of LineageOS reported okay within TWRP? Just out of interest, which TWRP and which build of LineageOS are you flashing (e.g. are you using the 32 bit TWRP or 64 bit TWRP, and are you flashing the 32 or 64 bit Lineage OS)?
That's confusing that even pressing 'start' in fastboot reboots your device rather than booting, even with a custom ROM... What happens if you boot to TWRP and try to reboot via TWRP? Is there a system to boot to?
Without the stock system on your device, there's no point to re-flashing the custom kernel/SuperSU, since you should have LineageOS on your device. Do you have a TWRP backup you could restore before you tried to root? If not, then what's your device model number (and if you can remember it, what software channel you're on, e.g. retus, reteu etc). ?
echo92 said:
Hmm, did you know if the flash of LineageOS reported okay within TWRP? Just out of interest, which TWRP and which build of LineageOS are you flashing (e.g. are you using the 32 bit TWRP or 64 bit TWRP, and are you flashing the 32 or 64 bit Lineage OS)?
That's confusing that even pressing 'start' in fastboot reboots your device rather than booting, even with a custom ROM... What happens if you boot to TWRP and try to reboot via TWRP? Is there a system to boot to?
Without the stock system on your device, there's no point to re-flashing the custom kernel/SuperSU, since you should have LineageOS on your device. Do you have a TWRP backup you could restore before you tried to root? If not, then what's your device model number (and if you can remember it, what software channel you're on, e.g. retus, reteu etc). ?
Click to expand...
Click to collapse
Yes, everything was ok with the flash.
I am using lineage-14.1-20180516-nightly-athene-signed and twrp-3.2.1-0-athene. I didn't see any options to choose between 32 and 64 bit. (Download pages: https://download.lineageos.org/athene#!name https://eu.dl.twrp.me/athene/)
It doesn't matter how I try to boot (powerbutton, fastboot, recovery) I always directly end up in fastboot.
No I don't have a backup. When I got the device it was resetted so I saw no point in making one :/ It is an XT1622 and it should be reteu.
squanch123 said:
Yes, everything was ok with the flash.
I am using lineage-14.1-20180516-nightly-athene-signed and twrp-3.2.1-0-athene. I didn't see any options to choose between 32 and 64 bit. (Download pages: https://download.lineageos.org/athene#!name https://eu.dl.twrp.me/athene/)
It doesn't matter how I try to boot (powerbutton, fastboot, recovery) I always directly end up in fastboot.
No I don't have a backup. When I got the device it was resetted so I saw no point in making one :/ It is an XT1622 and it should be reteu.
Click to expand...
Click to collapse
Okay, so they should both be 32 bit, so no worries there. There do seem to be a few reports of boot issues on the more recent official LineageOS builds https://forum.xda-developers.com/moto-g4-plus/development/rom-cyanogenmod-14-1-t3522101/page280 but I don't know if they are still existing on the build you've flashed.
As it's likely your device has been reset when you flashed LineageOS (I don't know if there are still files on your internal storage, which you can view in TWRP, so back up if you do have files), you may wish to look into a stock firmware flash. Here's the April 2018 NPJS25.93-14-18 firmware, which appears to be the build released to EU devices: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138 You do not have to re-lock your bootloader if you don't wish to - if you wish to leave your bootloader unlocked, then flash the stock firmware via fastboot with the following flashing commands:
Code:
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash dsp adspso.bin
fastboot flash oem oem.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash system system.img_sparsechunk.5
fastboot flash system system.img_sparsechunk.6
fastboot flash system system.img_sparsechunk.7
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot reboot
Flashing these files via ADB should put a fresh copy of the latest firmware onto your device, which should then boot. If it does boot, then you can proceed with rooting (flash TWRP, then back up, then flash ElementalX or vegito, then flash SuperSU or magisk).
echo92 said:
Okay, so they should both be 32 bit, so no worries there. There do seem to be a few reports of boot issues on the more recent official LineageOS builds https://forum.xda-developers.com/moto-g4-plus/development/rom-cyanogenmod-14-1-t3522101/page280 but I don't know if they are still existing on the build you've flashed.
As it's likely your device has been reset when you flashed LineageOS (I don't know if there are still files on your internal storage, which you can view in TWRP, so back up if you do have files), you may wish to look into a stock firmware flash. Here's the April 2018 NPJS25.93-14-18 firmware, which appears to be the build released to EU devices: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138 You do not have to re-lock your bootloader if you don't wish to - if you wish to leave your bootloader unlocked, then flash the stock firmware via fastboot with the following flashing commands:
Code:
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash dsp adspso.bin
fastboot flash oem oem.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash system system.img_sparsechunk.5
fastboot flash system system.img_sparsechunk.6
fastboot flash system system.img_sparsechunk.7
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot reboot
Flashing these files via ADB should put a fresh copy of the latest firmware onto your device, which should then boot. If it does boot, then you can proceed with rooting (flash TWRP, then back up, then flash ElementalX or vegito, then flash SuperSU or magisk).
Click to expand...
Click to collapse
Thanks for the help!
I can boot the stock rom and I have root access. However if I start or shut down the device it goes to fastboot. From there I can boot or shut down the device and everything seems to work Do you know how I can boot directly without fastboot?
squanch123 said:
Thanks for the help!
I can boot the stock rom and I have root access. However if I start or shut down the device it goes to fastboot. From there I can boot or shut down the device and everything seems to work Do you know how I can boot directly without fastboot?
Click to expand...
Click to collapse
Hmm, try booting back to the bootloader, attach your device to your computer, then open ADB. In ADB, type 'fastboot oem fb_mode_clear' without the quotes. Press enter to submit, then reboot and see if your device boots to system rather than to fastboot.
This command should clear fastboot mode (though useful when flashing).
echo92 said:
Hmm, try booting back to the bootloader, attach your device to your computer, then open ADB. In ADB, type 'fastboot oem fb_mode_clear' without the quotes. Press enter to submit, then reboot and see if your device boots to system rather than to fastboot.
This command should clear fastboot mode (though useful when flashing).
Click to expand...
Click to collapse
Yes that worked
Thank you very much for your help :victory:

Nexus Player Rom help

Hi im having problems here with my nexus player
i purchased and used this since 3year with custom AOSP android lollirock that i found on this forum how to install in the begining when i purchased it now since there are newer version of android and app stop working correctly on it i wanna return to the stock rom
what it did is after booting into fastboot and running those command using google official rom
fastboot erase boot
fastboot erase recovery
fastboot erase system
fastboot erase cache
fastboot flash bootloader (bootloader filename)
fastboot reboot-bootloader
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash cache (there were no cache.img in the google official rom package so i leave it like this)
fastboot reboot
my nexus bootloader is in UNlocked state, i remeber unlocked it the first time i flash the original rom to install the lollirock one
the device rebooted and now im stuck in the bootloop of circle turning in the screen
i did the exact samething trying to install a older version of the rom (after i read on the internet that the 8.00 was sending people who never messed around with fastboot and just using OTA to update into this samebootloop)
i got the same exact problem using an older version of the google official rom 7.1.2 i try i think
then i tried to reinstall AOSP custom 7.1 of android that i found on the forum of zulu99 he tell to
fastboot flash boot boot.img
fastboot flash system system.img
fastboot -w (and i noticed that when i run this fastboot return me and error saying that the file is missing (cannot generate image for userdata)
anyone know what i can do from here ?
im able to get into fastboot no problem holding the button under the device before i plugged in the power cord
im pretty a beginner using ADB and flashing android roms so i have no clue what im missing here but i guess its something due to the fact that ivd run fastboot erase cache.img in the begining !?!?
Please any help would be greatly appreciated
I always used the nexus root tool kit for everything.
http://www.wugfresh.com/nrt/

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