Instruction #1
1. Heyoo! Lets get started. First, press and hold the Power button.
2. Next, do choose the Power Off option. Tap OK.
3. Just wait for a couple seconds.
4. Hold the Power button to switch the phone on.
Instruction #2
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.