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

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

It always shows “verification failed” when I download & install the update. What should I do?

How much is the battery capacity of Y17? Does it support Dual-Engine Fast Charging?

How to take screenshots?

How to charge my phone properly?

Why can I not connect my phone to PC?

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

How to avoid my phone overheat?

How can I find my phone?