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There may be different network modes available depending on where you are. The network mode influences the data speeds your phone can achieve.
1. Find" Voice & Data"
Press Mobile Data.
Press Mobile Data Options.
Press Voice & Data.
2. Select network mode
Press the required network mode.
There may be different network modes available depending on where you are. Depending on the network mode selected, your phone will always find the network with the highest data speed and best signal.
Press arrow left.
3. Return to the home screen
Press the Home key to return to the home screen.