74 - Settings 
 Domestic Voice: Enable or disable 
voice service while roaming off the
home network.
 Domestic Data: Enable or disable
data service while roaming off the 
home network.
 International Voice: Enable or 
disable voice service while roaming on
international (non-domestic) networks.
 International Data: Enable or disable
data service while roaming on 
international (non-domestic) networks.
  NOTE: 
Additional charges may apply when the voice 
and data services are enabled while roaming. 
Set Preferred Network Mode 
1. From the home screen, touch   > 
Settings 
 
> Mobile networks >
Preferred network type. 
2. Select one of the following options: EvDo
only, CDMA only or CDMA/EvDo auto.
Data Usage Settings 
The Data usage menu lets you view your 
phone‘s mobile and Wi-Fi data usage, set 
data limits, restrict app access to data, and 
control auto-sync settings. 
Turn Mobile Data On or Off 
From the home screen, touch  > Settings 
> Data Usage and touch the Mobile data
slider. 
– or – 
Touch    > Settings 
 
> Mobile 
networks and check or uncheck Data 
enabled. 
Set a Mobile Data Limit 
1. From the home screen, touch   > 
Settings 
 
> Data Usage.
2. Check Set mobile data limit and touch 
OK.
3. Touch the time cycle in Data usage cycle
to change when the data limit should be 
applied.
4. Slide the red bar in the diagram up or
down to adjust the data limit; slide the
orange bar up or down to adjust data 
warning.
NOTE: 
You can also touch and hold the red bar or the 
orange bar to set the limit or warning level. 
  NOTE: 
To view data usage for a specific time period 
during the current cycle, drag the white 
vertical lines in the diagram. The 
corresponding data used will be shown below 
the diagram. 
Restrict an App's Access to 
Mobile Data 
1. From the home screen, touch   > 
Settings 
 
> Data Usage.