Find "Network Mode"
Press the menu icon.
Find "Network Mode"
Press Settings.
Find "Network Mode"
Press More....
Find "Network Mode"
Press Mobile networks.
Find "Network Mode"
Press Network Mode.
Select network mode
Press WCDMA only, GSM only, WCDMA (preferred)/GSM or 4G (preferred)/WCDMA/GSM.
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 WCDMA (preferred)/GSM, your phone automatically switches between 3G and 2G provided that you're within range of a 3G network.
If you select 4G (preferred)/WCDMA/GSM, your phone automatically switches between the three network modes provided that you're within range of a 3G or a 4G network.
Exit
Press the home icon to return to standby mode.
Find "Network Mode"
Select network mode
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 WCDMA (preferred)/GSM, your phone automatically switches between 3G and 2G provided that you're within range of a 3G network.
If you select 4G (preferred)/WCDMA/GSM, your phone automatically switches between the three network modes provided that you're within range of a 3G or a 4G network.
Exit
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