Reset PIN from adb shell

Question

I have forgotten the PIN of a device but I do have access to a root shell with adb shell and su



Is there some way I could remove the screen PIN lock or change it?


— Simson | Sources

Answer

if your device is not encrypted with login credentials you can delete locksettings.db 



adb shell su -c "rm /data/system/locksettings.db*"


However, bear in mind the following files are required for FBE encryption. If you delete these files you won't be able to decrypt userdata partition, all data is lost 



/data/system/gatekeeper.password.key

/data/system/gatekeeper.pattern.key

/data/system/locksettings.db

/data/system/locksettings.db-shm

/data/system/locksettings.db-wal

— alecxs | Sources

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