Instruction #1
1. For starters, press and hold the Power button.
2. A new menu should open. From it, choose the Power Off option, then tap OK.
3. Stay idle for five to ten seconds.
4. Again, hold the Power button. Your device should turn back on. Voila, you're done.
1. To begin, remove the back cover and the battery for, say, ten seconds.
2. Afterwards, put everything back in its place.
3. Now switch the phone back on with the Power button.