samsung galaxy S2

[AC Question]

my phone has gone off and it is not coming again what should I do

 

[B. Diddy]

Welcome to Android Central! A few things you can try:

1. Press and hold the Power button for 15 seconds.
2. Remove the battery, wait 10 seconds, and put it back in.
3. Try a new battery.
4. Remove the SD card and try powering on again.