10.3 2G/3G/4G control and its network setup
Cellular: Cellular is on, meaning that 2G/3G/4G is on.
Network Standard: WCDMA by default.
APN &Access Number: Normally, the user doesn't need to input user name and
password for APN and Access number. The default setting is available. If it can't
communicate with the network under the default setting, please consult your local
network carrier.
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