Making a call with hidden caller identification
Using call waiting on my mobile phone
Making a video call with my mobile phone
List of display icons
Turning the screen lock on my mobile phone on or off
If there's a problem with your payment information, you can only install free apps.
Log on to Google Play on a computer and change you payment information.
Share this article via email! Just fill in these details and the characters in the box.
Fields marked with * are mandatory.