Why does iphone 6 often display facetime's charging tips?

Facetime charging tips often appear on iphone 6. It may be that your mobile phone has turned on the facetime function, which will be charged after it is turned on, as long as it is turned off.

How to turn off the facetime function:

1, open the settings in the phone desktop.

2. Click to enter the face-to-face time.

3. Select to turn off the facial time function.