You can select which network modes your mobile phone can use, eg. 3G or GSM. Your choice determines the data speeds you can achieve.
Slide your finger down the display starting from the top edge of your mobile phone. Tap the settings icon.
Tap All.
Tap Mobile networks.
Tap Network Mode.
Tap one of the following network modes: Automatic (4G & 3G & 2G)
3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM). If you select Automatic (4G & 3G & 2G), your mobile phone automatically switches between the three network modes provided you're within range of a 4G network. If you select Automatic (3G & 2G), your mobile phone automatically switches between the two network modes provided you're within range of a 3G network. If you select 3G only, your mobile phone can only connect to 3G networks. If you select 2G only, you can't achieve high data speeds.
Automatic (3G & 2G)
3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM). If you select Automatic (4G & 3G & 2G), your mobile phone automatically switches between the three network modes provided you're within range of a 4G network. If you select Automatic (3G & 2G), your mobile phone automatically switches between the two network modes provided you're within range of a 3G network. If you select 3G only, your mobile phone can only connect to 3G networks. If you select 2G only, you can't achieve high data speeds.
3G only
3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM). If you select Automatic (4G & 3G & 2G), your mobile phone automatically switches between the three network modes provided you're within range of a 4G network. If you select Automatic (3G & 2G), your mobile phone automatically switches between the two network modes provided you're within range of a 3G network. If you select 3G only, your mobile phone can only connect to 3G networks. If you select 2G only, you can't achieve high data speeds.
2G only
3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM). If you select Automatic (4G & 3G & 2G), your mobile phone automatically switches between the three network modes provided you're within range of a 4G network. If you select Automatic (3G & 2G), your mobile phone automatically switches between the two network modes provided you're within range of a 3G network. If you select 3G only, your mobile phone can only connect to 3G networks. If you select 2G only, you can't achieve high data speeds.
