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How to change Security questions of Lock screen password?

How to disable the Lock screen password?

What should I do if I forget the answers to security questions of the lock screen password?

How to disable Lock screen?

What should I do if I forget the screen unlock password?

After Wipe data, phone enters “Please Input the unlock password” interface. What should I do?

How to set Pattern password?

How to set 6-Digit Password if my phone does not support it?

Can I set two lock screen passwords?

Can I set Face Access, Fingerprint, Pin or Pattern as the screen unlocking password simultaneously?

How to hide or display the pattern track?

Why can I not select None and Slide in Screen lock? They are gray.