Why my phone is off and cannot be on either

[AC Question]

I have a new phone on Hwaei i juz got it yesterday from my cousin and i use it then i leave it for while .when i came to use it again its power off and i press the power button to make it ...so now its not ...Can someone help me

 

[dpham00]

Try to sikulta press the power and volume down button for 30 sec to see if it will reboot