Network Settings - Sony Ericsson Xperia Arc S Extended User Manual

To activate data roaming
From the Home screen, tap
1
2 Find and tap Settings > Wireless & networks > Mobile networks.
3 Mark the Data roaming checkbox.
You can't activate data roaming when data connections have been deactivated

Network settings

Your phone automatically switches between networks depending on available networks
over different locations. Initially, your phone is configured to use the fastest mobile network
mode available for data. But you can configure your phone manually to only use a slower
2G network mode for data, to extend the life of your battery between charges. You can
also configure your phone to access a different set of network modes entirely, or to behave
in particular ways when roaming.
To select a network mode
1 From your Home screen, tap
2 Find and tap Settings > Wireless & networks > Mobile networks.
3 Tap Network Mode.
4 Select a network mode.
To select another network manually
1 From the Home screen, tap
2 Find and tap Settings > Wireless & networks > Mobile networks > Service
providers.
Tap Search mode.
3
4 When a popup window appears, tap Select manually.
5 Select a network.
If you select a network manually, your phone will not search for other networks, even if you move
out of range of the manually selected network.
To activate automatic network selection
1 From the Home screen, tap
2 Find and tap Settings > Wireless & networks > Mobile networks > Service
providers.
3 Tap Search mode.
4 Tap Select automatically.
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