Process system is not responding

[Saurav007]

My xperia xa keep restarting on itself... And after restart it says process system is not responding 

[ChloeS]

Hi @Saurav007

Do you have the same issue if you boot the phone in to safe mode?

Let me know 

[nhadz]

how to do safe mode? and my phone is not responding. It's not turning off even if i long press the power button