Apple iPhone 8

iOS 15.2

iOS 16.0 iOS 15.2

I can't make voice calls on my Apple iPhone 8 iOS 15.2

Cause 1 of 9: Your phone is overloaded for unknown reasons

If your phone is overloaded, you can't make any calls. It may help restarting it.

Step 1 of 3

Restart your phone

Press the Top volume key.

Step 2 of 3

Restart your phone

Press the Bottom volume key.

Step 3 of 3

Restart your phone

Press and hold On/Off until your phone restarts.

Press the Top volume key.

Press the Bottom volume key.

Press and hold On/Off until your phone restarts.