Device Guides

Apple iPhone 5

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iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.
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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.


Change network mode allowing your mobile phone to connect to both 2G, 3G and 4G networks.

Possible cause 6:

Your mobile phone is set to connect to 4G networks only

Solution:

Change network mode allowing your mobile phone to connect to both 2G, 3G and 4G networks.

1. Find "Mobile Data"
Tap Settings.
Tap General.
Tap Mobile Data.
2. Choose network mode
Tap the indicator next to Enable LTE.
Depending on the current setting, the function is turned on or off.
3. Exit
Tap the Home key to return to standby mode.

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