Sony 1271-1957 User Manual
To set a data usage warning
1
Make sure that data traffic is turned on.
2
Drag the status bar downwards, then tap .
3
Find and tap Data usage.
4
To set the warning level, drag the warning line to the desired value. You receive
a warning notification when the amount of data traffic approaches the level you
set.
To set a data usage limit
1
Make sure that data traffic is turned on.
2
Drag the status bar downwards, then tap .
3
Find and tap Data usage.
4
Mark the Set mobile data limit checkbox if it is not marked, then tap OK.
5
To set the data usage limit, drag the corresponding line to the desired value.
Once your data usage reaches the set limit, data traffic on your device will be turned off
automatically.
To control the data usage of individual applications
1
From your Home screen, tap .
2
Find and tap Settings > Data usage.
3
Find and tap the desired application.
4
Mark the Restrict background data checkbox.
5
To access more specific settings for the application, tap View app settings
and make the desired changes.
Specific settings for an application may not always be accessible.
The performance of individual applications may be affected if you change the related data
usage settings.
To view data transferred via Wi-Fi®
1
From your Home screen, tap .
2
Find and tap Settings > Data usage.
3
Tap , then mark the
Show Wi-Fi usage checkbox if it is not marked.
4
Tap the Wi-Fi tab.
Mobile network settings
Your device automatically switches between mobile networks depending on what
mobile networks are available in different areas. You can also manually set your
device to use a particular mobile network mode, for example, WCDMA or GSM.
To select a network mode
1
From your Home screen, tap .
2
Find and tap Settings > More… > 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 > More… > Mobile networks > Network operators.
3
Tap Search mode > Manual.
4
Select a network.
If you select a network manually, your device will not search for other networks, even if you
move out of range of the manually selected network.
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