How to avoid my phone overheat?

What are the differences between Funtouch OS 9.0 and Funtouch OS 4.5?

Which phones will be updated to Android P?

Do I have to update the phone to the latest version?

How can I transfer data from my old phone to my new phone?

What should I do if my device cannot be powered on?

How can I improve the success rate of fingerprint recognition?

Why can my phone be unlocked through Face Access when I wearing a mask?

How can I find my phone?

How to register a vivo account on the phone designed for Chinese Mainland users?