In the unlikely event that your device becomes unresponsive, you can attempt a force restart. This will turn your device off and back on without affecting any data stored on the device.
Do not attempt to remove the battery from your device. Doing so may damage the device and battery and could cause burning and injury.
Ensure your device is charged to a minimum of 5%. If your battery is below 5%, the device may not turn on after the restart. A device that is completely drained should be charged for a minimum of 15 minutes using the wall charger supplied with your device.
To force restart your device, press and hold the Volume down key and Power/Lock key on the device for 10–20 seconds. This performs a simulated battery disconnect.
If your device becomes unresponsive or frozen after a software update or a fall, you need to contact us to solve the issue. More information and more steps will be required as force restart might not be enough.