Apple iPhone 6s

iOS 9.0

iOS 15.2 iOS 14.0 iOS 13.1 iOS 12.0 iOS 11.0 iOS 10.0 iOS 9.0

I can't make voice calls on my Apple iPhone 6s iOS 9.0

Cause 6 of 10: Your phone is overloaded for unknown reasons

If your phone is overloaded, you won't be able to make any calls. It may help restarting it.

Step 1 of 2

Restart your phone

Press and hold the Home key.

Step 2 of 2

Restart your phone

At the same time, press and hold On/Off until your phone is restarted.

Press and hold the Home key.

At the same time, press and hold On/Off until your phone is restarted.

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