Redmi k50 issued SMS password.

Step 1: If a fingerprint is set, you can use it to quickly unlock it, and then you can enter the desktop.

Step 2: If the graphic unlocking is set, you can also directly enter the graphic unlocking desktop.

Step 3: If you set the digital password to unlock, you can quickly enter the mathematical password, and then you can unlock it and enter the desktop.

If you forget your password, you can cancel it by double clearing or restoring the factory settings.