Microsoft Lumia 640

Microsoft Lumia 640

How to guides

Select network mode

You can select which network modes your phone should use. This selection influences the data speeds you can achieve.

Step 1 of 5

Find "mobile+SIM"

Slide your finger down the display starting from the top edge of your phone.
Press ALL SETTINGS.

Step 2 of 5

Find "mobile+SIM"

Press mobile+SIM.

Step 3 of 5

Select network mode

Press the field below "Highest connection speed".

3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM).
If you select 4G, your phone automatically switches between the three network modes provided that you're within range of a 3G or a 4G network.
If you select 3G, your phone automatically switches between 3G and 2G provided that you're within range of a 3G network.
If you select 2G, you can't achieve high data speeds.
Step 4 of 5

Select network mode

Press 2G, 3G or 4G.

3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM).
If you select 4G, your phone automatically switches between the three network modes provided that you're within range of a 3G or a 4G network.
If you select 3G, your phone automatically switches between 3G and 2G provided that you're within range of a 3G network.
If you select 2G, you can't achieve high data speeds.
Step 5 of 5

Return to the home screen

Press the home icon to return to the home screen.

1. Find "mobile+SIM"

Slide your finger down the display starting from the top edge of your phone.
Press ALL SETTINGS.
Press mobile+SIM.

2. Select network mode

Press the field below "Highest connection speed".
3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM).
If you select 4G, your phone automatically switches between the three network modes provided that you're within range of a 3G or a 4G network.
If you select 3G, your phone automatically switches between 3G and 2G provided that you're within range of a 3G network.
If you select 2G, you can't achieve high data speeds.
Press 2G, 3G or 4G.
3G (UMTS) or 4G (LTE) enables you to achieve higher data speeds than when using 2G (GSM).
If you select 4G, your phone automatically switches between the three network modes provided that you're within range of a 3G or a 4G network.
If you select 3G, your phone automatically switches between 3G and 2G provided that you're within range of a 3G network.
If you select 2G, you can't achieve high data speeds.

3. Return to the home screen

Press the home icon to return to the home screen.

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