I cannot turn off the phone

[AC Question]

When i try to turn off the pone it restarts again and again

 

[Raptor007]

Welcome to AC. Can you tell us which phone model and OEM you have. Did you install a custom ROM, did you root it or otherwise do anything to the stock OS. Has the phone been dropped or gotten wet. There are many factors involved in why it could do that. Try rebooting into safe mode and wiping the cache, factory reset.