Settings57Data usageKeep track of your data usage amount and customize the settings for the limitation.On the Settings screen, tap Connections → Data usage.• Data saver: Prevent apps that are running in the background from using a mobile dataconnection.• Mobile data: Set the device to use data connections on any mobile network.• Mobile data usage: Monitor your mobile data usage.• Billing cycle: Set a limit for mobile data usage.• Wi-Fi data usage: Monitor your Wi-Fi data usage.• Restrict networks: Select Wi-Fi networks to prevent apps running in the backgroundfrom using them.To change the monthly reset date for the monitoring period, tap Billing cycle → Billing 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 Connections → Data usage → Billing cycle, and then tapthe Apply data usage limit switch to activate it.2 Tap Data usage limit, enter the limit, and then tap SET.3 Tap Data usage warning, enter a data usage alert level, and then tap SET.The device will alert you when the warning level is reached.Flight modeThis disables all wireless functions on your device. You can use only non-network services.On the Settings screen, tap Connections and tap the Flight mode switch to activate it.Make sure the device is turned off during takeoff and landing. After takeoff, you canuse the device in flight mode if allowed by aircraft personnel.