Chosen Solution
I have tried so many things and nothing is working
your nook wont turn on because it is overheated.if your nook will not turn on then try charging it.
My Tablet Nook HD Won’t Turn on but it Will just charge
I had the same thing happen. I just took it of the charger and left it for 2 weeks. I tried it again and it worked. May be different for you but it worked for me.
I’m thinking you might need a new battery
