Device Guides

Nokia Lumia 635

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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 1:

Flight mode is turned on: Turn off flight mode.

List view

1. 1. Find "flight mode"

Slide your finger down the display starting from the top edge of your mobile phone.
Tap ALL SETTINGS.
Tap flight mode.

2. 2. Turn flight mode on or off

Tap the indicator next to "Status" to turn the function on or off.

3. 3. Return to the home screen

Tap the home icon to return to the home screen.
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