Getting Started 6Removing the 4G LTE SIM CardImportant!: Turn the device off before installing or removing the SIM card. Toturn the device off, press and hold the Power/Lock Key.1. Open the SIM card slot and gently push the 4G LTE SIMCard inward to release it.2. Carefully slide the 4G LTE SIM Card out of the slot.BatteryYour device is powered by a rechargeable, standard Li-Ionbattery. A Wall/USB Charger (Charging Head and USB cable) areincluded with the device, for charging the battery.Note: The battery comes partially charged. You must fully charge the batterybefore using your device for the first time. A fully discharged batteryrequires up to 4 hours of charge time.After the first charge, you can use the device while charging.Warning!: Use only approved charging devices. Approved accessories aredesigned to maximize battery life. Using other accessories mayinvalidate your warranty and may cause damage.Battery IndicatorThe battery icon in the System Bar shows battery power level.Before the battery becomes too low to operate, the empty batteryicon will flash and a tone will sound. If you continue to operatethe device without charging, the device will shut down.