Device Settings 57Gyro Sensor CalibrationThis feature allows you to calibrate the device motion using a gyroscope.1. Press > and tap > Display > Gyro sensor calibration.2. Place the device on a level surface and tap Calibrate. The device adjusts the level ofthe gyroscope. During the calibration process a green circle appears onscreen and thecenter circle adjusts to the center position.Battery & Data Manager SettingsControl your device’s data delivery and battery usage through this settings menu.Data SaverBattery UsageData SaverActive applications, light levels, Bluetooth usage, and GPS functionality all act to drain yourbattery. The following is a list of helpful tips that can help conserve your battery power:● Reduce your backlight on time.● Turn Bluetooth off when not in use.● Turn Wi-Fi off when not in use.● Turn 4G off when not in use● Turn off Sprint Hotspot (Wi-Fi hotspot) services when not in use. This is one of thelargest drains on your battery as it is not only transmitting a Wi-Fi connection to yourdevices but is also doing it while using a 4G connection.● Deactivate the GPS when not needed. Most applications using this function willperiodically query the GPS satellites for your current location; each query drains yourbattery.● Do not wait until your battery is completely depleted before charging your device.Repeating this process of a complete discharge and recharge can over time reduce thestorage capacity of any battery.● Turn off Automatic application sync.● Use the Power Control Widget to deactivate hardware functions such as Wi-Fi,Bluetooth, GPS, Synchronization, or LCD brightness setting.