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card is changed, and touch OK.
NOTE:
When one nano-SIM card is set to connect with 4G/3G networks,
the other installed nano-SIM card can only connect with 2G
networks.
Control Mobile Data Use
To enable or disable data access:
1. Touch the Home key > Settings > Data usage.
2. Touch a card tab at the top.
3. Touch the Cellular data switch to enable or disable mobile
data use with that nano-SIM card.
To get data services when roaming:
1. Touch the Home key > Settings > More > Cellular networks.
2. Touch a card tab at the top.
3. Touch the Data roaming switch if it is turned off.
NOTE:
Data roaming may incur significant roaming charges.
Select Preferred Network Type
1. Touch the Home key > Settings > More > Cellular
networks.
2. Touch the 4G/3G card tab at the top.
3. Touch Preferred network type and touch the type of network
you prefer the phone to connect to.