Settings85Flight modeThis disables all wireless functions on your device. You can use only non-network services.Data usageKeep track of your data usage amount, and customise the settings for the limitation.• Mobile data: Set the device to use data connections on any mobile network.• Set mobile data limit: Set a limit for the mobile data usage.• Data usage cycle: Enter monthly reset date to monitor your data usage.To use more options, tap .• Data roaming: Set the device to use data connections when you are roaming.• Restrict background data: Set the device to disable sync in the background while usinga mobile network.• Auto sync data: Activate or deactivate auto-syncing of applications. You can select whatinformation to sync for each account in Settings → ACCOUNTS.• Show Wi-Fi usage: Set the device to show your data usage via Wi-Fi.• Mobile hotspots: Select Wi-Fi hotspots to prevent applications that are running in thebackground from using them.SIM card manager (dual SIM models)Activate your SIM or USIM cards and customise the SIM card settings.• Voice call: Select a SIM or USIM card for voice calls.• Video call: Select a SIM or USIM card for video calls.• Data service network: Select a SIM or USIM card for data service.• Receive incoming calls: Set whether or not to allow incoming calls from the GPRSnetwork while using data services.• 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.