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HTC 10

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Android 6.0
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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 3:

Flight mode is turned on: Turn off flight mode.

List view

1. Turn flight mode on or off

Tap and hold On/Off until a pop-up menu is displayed.
Tap Airplane mode to turn flight mode on or off.
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