J5 Prime Phone will not turn on
So I've had a Samsung J5 Prime for just over 5 months now, and this is the first time it's ever acted up. I didn't charge it over the night, (I forgot) but charged it when i woke up and it was around 60% before I went to school. After about 4 hours of working fine, I went to check the time and my phone wouldn't turn on at all. Held down the power button etc and naturally assumed it had run out of battery. I remember it had about 40% charge left which I thought was a little strange, but I came home and plugged it in.
I've left it charging for about an hour and a half now, but nothing has happened, no red light, no response.
Yes, I checked if the charger was turned on.
I've tried holding down the power button while it's charging
I've tried switching power plugs and chargers
No idea what to do......
Also, the back cover doesn't come off so i cant take out the battery etc.