Press and hold the Home + Power key.
Keep holding for at least 25 seconds, even if the 'Startup' screen appears.
Release the keys when you see a black screen with a warning sign.
Slide the keyboard open.
NOTE: As a shortcut, press ALT + W to factory reset the device. If this does not work continue with the below steps.
Press ALT+L.
Press ALT+W for 'wipe data/factory reset'. (recommended) |