Find "Network Mode"
Press the menu icon.
Press Settings.
Press More....
Press Mobile networks.
Press Network Mode.
Select network mode
Press WCDMA only, GSM only or GSM/WCDMA preferred.
3G enables you to achieve higher data speeds than when using GSM.
If you select GSM/WCDMA preferred, your phone automatically switches between the two network modes provided that you're within range of a 3G network.
If you select WCDMA only, your phone can only connect to 3G networks.
If you select GSM only, you can't achieve high data speeds.
If you select GSM/WCDMA preferred, your phone automatically switches between the two network modes provided that you're within range of a 3G network.
If you select WCDMA only, your phone can only connect to 3G networks.
If you select GSM only, you can't achieve high data speeds.
Exit
Press the Home key to return to standby mode.
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