I can't make voice calls
Select network mode
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1Find "Network mode"
- Press Settings.
- Press Networks.
- Press More.
- Press Mobile networks.
- Press Network mode.
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2Select network mode
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Press the required network mode.
There may be different network modes available depending on where you are. If you set your phone to the fastest network mode, it will always find the network with the highest data speed and best signal.
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Press the required network mode.
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3Return to the home screen
- Press the Home key to return to the home screen.