AMobile GT78-VN, User Manual

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Using the Device
3.3.4 Data Roaming
When the GT78-VN moves to where your cellular network is not available,
data roaming connects the GT78-VN to other service providers. This is
often useful abroad if you want to keep receiving data across networks.
However, the mobile rates can substantially increase as the costs
for accessing the internet are particularly high. Under such situation,
you may want to disable the data roaming function of the SIM card.
To enable or disable data roaming:
1. Swipe down the Status bar and tap Settings
|
WIRELESS & NETWORKS
|
SIM management
|
Roaming
|
Data roaming.
2. On the target cellular network, tick/untick the check box to enable/disable
data roaming.
While data roaming is disabled, you can still use Wi-Fi connection to access the
Internet data.