HTC One M8s

HTC One M8s

Android 5.0.2

I can't make voice calls on my HTC One M8s Android 5.0.2

Cause 1 of 4: There's a connection error

If your phone doesn't receive any calls when someone calls you, it may be caused by an unknown connection error.

Solution: Restart your phone.

Step 1 of 2

Restart your phone

Press and hold On/Off.

Step 2 of 2

Restart your phone

Simultaneously, press and hold the top part of the Volume key until your phone is restarted.

1 Restart your phone

Press and hold On/Off.
Simultaneously, press and hold the top part of the Volume key until your phone is restarted.