Device Guides

Apple iPhone 12

iOS 16.0

iOS 15.0

iOS 14.1

iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.

Change device

Buy now

Search in Apple iPhone 12

I can't make voice calls

This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.

Possible cause 2:

Your mobile phone is overloaded for unknown reasons: Restart your mobile phone.

List view

1. Restart your mobile phone

Tap the Top volume key.

Tap the Bottom volume key.

Tap and hold the Side button until your mobile phone restarts.

Step 1 of 3

Tap the Top volume key.

Step 2 of 3

Tap the Bottom volume key.

Step 3 of 3

Tap and hold the Side button until your mobile phone restarts.

Did this solution solve the problem?

Yes No

Email this guide

Would you like information for your {device-name}?

Yes No

Would you like

Information for one of these devices?

{device-name}

No thanks