If you are locked out of your device, you might be searching for a to regain access. However, it is vital to understand that a single "master" pattern or a simple downloadable file that unlocks any phone does not exist.
On very old devices, after several failed attempts, a "Forgot Pattern" button appears. You can unlock the device by signing in with the primary Google account associated with the phone. universal-unlock-pattern-for-android-download
To avoid this situation in the future, consider these best practices: If you are locked out of your device,
Set up fingerprint or facial recognition as a secondary access method. after several failed attempts