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How to enable the small window mode?

Features of Album app

How to use split screen function?

Things You Might Want to Know About Your Phone Battery

How to set app lock?

Why are there some small icons on the edge of the phone screen?

How can I turn off TalkBack?

What should I do if I forgot lock screen password?

How can I hide photos or videos in the album?

Can not receive the verification code when logging into WhatsApp