IPhone 5 won't turn on. I've tried everything?

I was cleaning and going through old things today and I found my old iPhone 5. I'm not sure how long ago it was whenever I couldn't get it to turn on(maybe 2 or 3 years ago). I had the iPhone for probably a year and a half before it shut off completely. Months before it shut off I had dropped it and shattered the screen and never got it fixed. Now when it completely shut down, I got a cheap off brand charger(bad idea, I know) and it kept saying "Acsessory incapable with device." Not thinking, I kept using the charger. The charger that came with the phone broke which is why I was using a cheap one. I've tried holding the power button and home button separately and at the same time. I've even tried charging it with an Apple charger over night and still nothing. I haven't tried plugging it up to my lap top because I don't know how to do anything from there. It's not a big deal if it I can't get it to turn back on, but it would be nice to have a back-up phone.

Haha NOW you DON't HAVE A PHONE ANYMORE