Calls and contacts
Apps and media
Cause 2 of 2: Your phone's software hasn't been updated to the latest version
If you can't use one of your apps, the app may require you to update your phone to the latest version.
Solution: Update your phone with the latest software.
Update phone software
Press Software Update. If a new software version is available, it's displayed. Follow the instructions on the screen to update the phone software.