Settings91Data usageKeep track of your data usage amount and customise the settings for the limitation.On the Settings screen, tap Data usage.• Mobile data: Set the device to use data connections on any mobile network.• Background data: Prevent apps that are running in the background from using a mobiledata connection.• Set mobile data limit: Set a limit for mobile data usage.To change the monthly reset date for the monitoring period, tap → Change cycle.Limiting data usageSet the device to automatically disable the mobile data connection when the amount ofmobile data you have used reaches your specified limit.1 On the Settings screen, tap Data usage and tap the Set mobile data limit switch toactivate it.2 Drag the limit adjustment bar upwards or downwards to set the limit.3 Drag the warning adjustment bar upwards or downwards to set a data usage alert level.The device will alert you when the warning level is reached.SIM card managerActivate your SIM or USIM cards and customise the SIM card settings. Refer to Using dual SIMor USIM cards for more information.On the Settings screen, tap SIM card manager.• Voice call: Select a SIM or USIM card for voice calls.• Text messages: Select a SIM or USIM card for messaging.• Mobile data: Select a SIM or USIM card for data service.• Dual SIM always on: Set the device to allow incoming calls from the other SIM or USIMcard during a call.When this feature is enabled, you may incur additional charges for call forwardingdepending on the region or service provider.