Xiaomi Redmi 9AT
Android 10.0
1 Find "Password"
Press Settings.
Press Passwords & security.
Press Password.
2 Create phone lock code using a pattern
Press Pattern.
Press Got it.
Slide your finger across the screen to connect at least four points and press Confirm.
3 Turn off use of phone lock code
Press Password.
Key in the current phone lock code and press Turn off screen lock.
Press OK.
4 Return to the home screen
Press the Home key to return to the home screen.