wuwtk1 4 Posted January 28, 2021 Share Posted January 28, 2021 Having quite the issue with my Pro1. Had the phone for nearly a year now and for most of it no real issues. A couple of months ago I unlocked the bootloader and installed Lineage 16.0. Everything was good except that every time I setup a fingerprint, it would work without issue until I restarted the device where fingerprints would always disappear. Originally I figured it was a bad flash and left it as because I was barely using my phone at the time. But now I tried to reflash and Im still getting the same issue. Things I've tried - changing pin/pattern - enabling/disabling secure boot - wiping all partitions/userdata/cache an incredible amount of times - flashing stock using fastboot via Waxberry's method - flashing stock using TDM's recovery tool - re-locking the bootloader So yeah... I'm at a complete loss and could use any help at all. It seems weird that it would be a hardware issue if it works before a restart, but I'm out of ideas of what it could be on the software/firmware side of things so that's where my mindset it going. 1 Quote Link to post Share on other sites
DieBruine 397 Posted January 29, 2021 Share Posted January 29, 2021 (edited) You can aquire root rights through adb (DevOps - USB debugging - Rooted debugging) without rooting the phone. Run adb root from your computer and delete "/persist/data/fingerprint". Edited January 29, 2021 by DieBruine Why it happens and how to fix it 1 4 Quote Link to post Share on other sites
wuwtk1 4 Posted January 29, 2021 Author Share Posted January 29, 2021 10 hours ago, DieBruine said: You can aquire root rights through adb (DevOps - USB debugging - Rooted debugging) without rooting the phone. Run adb root from your computer and delete "/persist/data/fingerprint". Thank you so much! That was driving me insane. Quote Link to post Share on other sites
wuwtk1 4 Posted January 29, 2021 Author Share Posted January 29, 2021 (edited) Just for anyone else having this issue I resolved it a bit of a different way (^thank you for those threads and the massive help) and here is how I did it. I was unable to do adb root since the whole reason I flashed back to stock is my new job is now very phone dependent and I was having some issues in Lineage, so I flashed the persist.img instead Enable developer options and usb debugging Make sure you bootloader is unlocked (had to unlock and re-lock it after flashing) Put this file into your adb folder (Persist.img file from TDM) http://files.nwwn.com/android/pro1/persist.img In CMD go to your adb folder ("cd C:\adb" or wahtever you used) and first check your device is being with "fastboot devices" Run "fastboot flash persist persist.img" ??? Profit! 🙂 Edited January 29, 2021 by wuwtk1 Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.