So I've been having all sorts of issues with my Note (first gen).
First thing is the usb charging port went out; so I bought another chipset and replaced it.
Phone was charging= SUCCESS!!
However, I turned the phone off and rebooted it; screen wouldn't power up, but my home screen buttons did.
Now, the screen is black and neither the home buttons power up.
(K, I know the phone is powering on because it vibrates and is discoverable by PC)
So what the crap did I do? I just simply replaced the chipset, I didn't go messing around with other components...
My phone isn't flashed or rooted either.
(....and I don't have the $$ to send it to samsung, out of warranty)