What to do when Samsung Galaxy Grand Prime restarted and won't turn back on?

I turned knox  on my samsung galaxy grand prime it restarted phone hasent come back on




Usually when my phone won't open (not a Samsung Galaxy Grand Prime), I just remove the battery for a couple of minutes then put it back on and it turns on fine. If still won't turn on, maybe you drained the battery? Charge it for at least 15 minutes before turning it on again.


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