Phone encrypted and can't add fingerprint - Nexus 6P Q&A, Help & Troubleshooting

I'm new to the Nexus 6P, just came from the Note 5. I've been searching all the threads but haven't found any info yet. I just unlocked the boot loader, flashed twrp 3.0.2.0. Then I booted up so I could add a pin so I could decrypt data in twrp because I thought I had to. Then I flashed superuser 2.71 then tamasek cm13 slim gapps and elementalx kernel. Since then I always have to enter my pin every boot and when I try to add a finger print the "add fingerprint" button is like blacked out and I can't choose it. Can anyone help me? I've tried dirty unicorns and am on pure Nexus now and it's the same no matter what. I wiped every thing but the internal storage multiple times between flashes.
Sent from my Nexus 6P using XDA-Developers mobile app

I'm not sure how but the problem seems to have corrected itself. This thread may not be helpful for anyone. Maybe a mod could delete.
Sent from my Nexus 6P using XDA-Developers mobile app

Related

Constant Reboots

Hey I installed Liquidsmooth 2.7 yesterday and it kept rebooting. I tried flashing back to CM 10.1 RC5 because it wasn't doing that before. Again it kept rebooting. It reboots like every 30 secs. It's always a quick reboot as well. I flashed back to stock and locked the bootloader but nothing seems to fix it. Does anyone know how to fix this?
yes , install sabermod rom and trinity kernel . enjoy
Sent from my Nexus 10 using xda app-developers app
amjc14 said:
Hey I installed Liquidsmooth 2.7 yesterday and it kept rebooting. I tried flashing back to CM 10.1 RC5 because it wasn't doing that before. Again it kept rebooting. It reboots like every 30 secs. It's always a quick reboot as well. I flashed back to stock and locked the bootloader but nothing seems to fix it. Does anyone know how to fix this?
Click to expand...
Click to collapse
try the following:
wipe all caches, data & system
install ROM (i recommend SentinelROM 4.8 - it's very fast & stable)
install gapps (if needed)
wipe aigain all caches
reboot system
I tried that, I restored stock and locked the boot loader, I tried to root it again and nothing worked. I contacted Google and I'm getting it replaced. Thanks for the advice though
Sent from my Nexus 4 using Tapatalk 4 Beta

Restoring Backup never works.

Hello people of all ages, races, and denominations. I have a problem with my Nexus 6P. I just recently upgraded from the Nexus 6 so I'm still learning how the new phone works in TWRP etc. For some reason everytime I make a backup then install a new ROM, I can't get that backup to work again. For example, I tried to restore an old Backup and it booted fine but I couldn't get in it because it kept saying incorrect password. It's happened 3 times now. I know my password wasn't changed whatsoever so that's not the problem. I then realized I also had no WiFi by pulling down the bar from the lock screen and even after fresh installation, still no WiFi. It seems no matter what each time I want to install a new ROM or restore an old one I have to reflash the bootloader, radio, and vendor image, EVERY SINGLE TIME. Even if the ROM I'm on already uses the same vendor, radio, and bootloader I still have to reflash them all the time.
With the Nexus 6 I can just flash them once and all rims who use the same will work across it seamlessly but with the 6p I have to have a laptop and go through all the fast boot stuff just to test a new ROM and I sometimes do it on the go and don't carry my laptop with me everywhere so is there anyway for me to just flash new ROM without going through all of that all the time?
Thanks.
TransportedMan said:
Hello people of all ages, races, and denominations. I have a problem with my Nexus 6P. I just recently upgraded from the Nexus 6 so I'm still learning how the new phone works in TWRP etc. For some reason everytime I make a backup then install a new ROM, I can't get that backup to work again. For example, I tried to restore an old Backup and it booted fine but I couldn't get in it because it kept saying incorrect password. It's happened 3 times now. I know my password wasn't changed whatsoever so that's not the problem. I then realized I also had no WiFi by pulling down the bar from the lock screen and even after fresh installation, still no WiFi. It seems no matter what each time I want to install a new ROM or restore an old one I have to reflash the bootloader, radio, and vendor image, EVERY SINGLE TIME. Even if the ROM I'm on already uses the same vendor, radio, and bootloader I still have to reflash them all the time.
With the Nexus 6 I can just flash them once and all rims who use the same will work across it seamlessly but with the 6p I have to have a laptop and go through all the fast boot stuff just to test a new ROM and I sometimes do it on the go and don't carry my laptop with me everywhere so is there anyway for me to just flash new ROM without going through all of that all the time?
Thanks.
Click to expand...
Click to collapse
It works.
Search is your friend.
http://forum.xda-developers.com/nexus-6p/general/psa-twrp-backups-lockscreen-security-t3245070
Seems like shutting off security first would be easier
Sent from my Nexus 6P using XDA-Developers mobile app
Always remove all security before making backups. Makes restores painless!
I made a post about the solution. Search, my friend, and you will find the answer.
TransportedMan said:
Hello people of all ages, races, and denominations. I have a problem with my Nexus 6P. I just recently upgraded from the Nexus 6 so I'm still learning how the new phone works in TWRP etc. For some reason everytime I make a backup then install a new ROM, I can't get that backup to work again. For example, I tried to restore an old Backup and it booted fine but I couldn't get in it because it kept saying incorrect password. It's happened 3 times now. I know my password wasn't changed whatsoever so that's not the problem. I then realized I also had no WiFi by pulling down the bar from the lock screen and even after fresh installation, still no WiFi. It seems no matter what each time I want to install a new ROM or restore an old one I have to reflash the bootloader, radio, and vendor image, EVERY SINGLE TIME. Even if the ROM I'm on already uses the same vendor, radio, and bootloader I still have to reflash them all the time.
With the Nexus 6 I can just flash them once and all rims who use the same will work across it seamlessly but with the 6p I have to have a laptop and go through all the fast boot stuff just to test a new ROM and I sometimes do it on the go and don't carry my laptop with me everywhere so is there anyway for me to just flash new ROM without going through all of that all the time?
Thanks.
Click to expand...
Click to collapse
Make sure you have the latest TWRP 3.0.2-0 link here . With the latest TWRP you should be able to back up and restore everything, including pin and fingerprint (I use pin so that's what I tested), not sure about pattern and password just because I don't use those.
Make a backup without the security settings , turn off the fingerprint and lock screen then back up , you'll never have an issue that way
Sent from my Nexus 6P using XDA-Developers Legacy app
I have never successfully restored a backup with the 6P regardless of the version of TWRP used. I always turn off security settings. Makes no difference. I have given up even trying. And I never had that problem with any other phone that I have ever owned.
I had the same problem maybe i backup and restore wrong partition. Can someone post the correct steps which partitions backup and what wipe before restore.
Maybe read the post by Heisenberg , I've never had an issue backups on the 6p or any other device
Sent from my Nexus 6P using XDA-Developers Legacy app

TWRP Issues after Flashing new ROM

Hello all
I am having a little bit of trouble with my TWRP recovery after flashing an updated version of a custom ROM, i have been using for a while.
I am using the latest version of the Pure Nexus ROM, and am currently un-rooted. I earlier want to try and clear my davlik cache as i was having a few little issues with some things, and wiping this has previously fixed the issue, i rebooted into the TWRP, and was asked for a password, which i thought would have been the PIN i use to unlock my phone. This then failed, and it proceeded to try and decrypt the partition. I left it doing this for about 20 mins, but nothing happened.
After reading up a little more, and trying a few different potential passwords to no avail, i read up that the password that TWRP was asking me for was related to the fact i had my phone set to ask for password on boot.
I removed this, and tried again. This time, TWRP just got stuck on the splash screen when trying to boot. Nothing happened for a good 10 minutes.
After putting the PIN settings back on, it goes back to asking for a password, that it wont take.
Whats my next option here, im kinda stuck. I really dont want to have to wipe the phone as i have just spent the best part of a week after flashing my new ROM getting it all back to how it was after flashing the new custom ROM i am using..
All help, much appreciated, thanks in advance
What version of TWRP are you using ?
No issues on TWRP 3.2.0.3
Sent from my Nexus 6P using Tapatalk
I'm on version 30.20

Nexus 6P Bootloop

Today I was browsing the internet on my Nexus 6p when it suddenly cut to a black screen. When I tried to restart it, I noticed that it was stuck in a bootloop. After some searching, I've tried to wipe the cache, delete the data, do a factory reset etc. I did root my nexus approximately 3-4 months ago, however I went back and flashed the stock factory ROM. I've been trying to flash a new ROM now, but my PC isn't detecting my 6p as a device. I've looked at the device manager menu, and I'm seeing nothing. After some looking around, I've seen that some 6p owners are experiencing bootloop problems. Any idea what I could do?
Ps. I bought my phone via a carrier, freedom mobile.
Note: I WAS NOT USING A CUSTOM ROM, I HAD FLASHED A FACTORY IMAGE A FEW MONTHS AGO
Do you have TWRP flashed? Can you get the PC to detect when in TWRP should work as soon as you get into twrps menus.
Sent from my Nexus 6P using Tapatalk
gjkrisa said:
Do you have TWRP flashed? Can you get the PC to detect when in TWRP should work as soon as you get into twrps menus.
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
I have managed to get TWRP installed, and now my PC is detecting my phone. I managed to get it to work again, however after around 15 minutes of use, it decided to freeze, crash, and go back into a bootloop.
(I managed to fix it by flashing an OTA update, I'm not sure if the TWRP installation helped)
Wish there was a way to test memory if it was a PC I'd say memory or storage was bad.
Sent from my Nexus 6P using Tapatalk

How to decrypt the Axon 7?

OK so this is totally self inflicted. At some point I was dinking around in the settings and the device asked me if I wanted to set a pin at startup. I went along with it and did that thinking it was a good idea. What it seems to have done (besides the startup pin) is encrypted the phone. Now technically everything works I can just enter my pin to boot to ROM or TWRP. But I want to remove the encryption and for the life of me I cannot find how to do that.
Any help would be GREATLY appreciated.
Here are notes on my situation:
-yes i searched the internets and XDA and mostly found stuff about the Nexus and OnePlus devices
-under security settings it just says "encrypted" there is no option to decrypt
-i have tried wiping and even formatting to different formats on data and system partitions
-tried different roms as well
-this is a Axon 7 U device
-running TWRP 3.1.1-0
-ROMs RR and Dark Rom
-obviously boot loader unlocked
Thank You
DarkQuark said:
OK so this is totally self inflicted. At some point I was dinking around in the settings and the device asked me if I wanted to set a pin at startup. I went along with it and did that thinking it was a good idea. What it seems to have done (besides the startup pin) is encrypted the phone. Now technically everything works I can just enter my pin to boot to ROM or TWRP. But I want to remove the encryption and for the life of me I cannot find how to do that.
Any help would be GREATLY appreciated.
Here are notes on my situation:
-yes i searched the internets and XDA and mostly found stuff about the Nexus and OnePlus devices
-under security settings it just says "encrypted" there is no option to decrypt
-i have tried wiping and even formatting to different formats on data and system partitions
-tried different roms as well
-this is a Axon 7 U device
-running TWRP 3.1.1-0
-ROMs RR and Dark Rom
-obviously boot loader unlocked
Thank You
Click to expand...
Click to collapse
Remove your PIN and then add it back but this time when it asks you if you want the startup pin choose no thanks.
Startup pin IS encryption.
bkores said:
Remove your PIN and then add it back but this time when it asks you if you want the startup pin choose no thanks.
Startup pin IS encryption.
Click to expand...
Click to collapse
I had tried that earlier and it did not work. What did work was doing doing a format data in twrp. I think mine was just stuck.
DarkQuark said:
I had tried that earlier and it did not work. What did work was doing doing a format data in twrp. I think mine was just stuck.
Click to expand...
Click to collapse
i believe that's the only way to decrypt the phone. You can have your phone encrypted without jt asking for a pin or pattern and startup, and it happens every damn time you forget to flash supersu or magisk on first boot. If you flash another ROM later you'll have to format data, or it will fail if it is encrypted.
If your phone has TWRP I suggest that you go to it and format data, then install supersu/magisk via sideload or an sd card or otg without rebooting.

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