[Q] Galaxy Mega 5.8 not turning on! topic

Hi, I recently bought a Samsung Galaxy Mega online with the seller stating that it had a broken charger port. I put the battery into a charger and it charged. I put the battery in the phone and it doesn't turn on but the Front and back camera area become hot. The intresting thing is that i plug this into the computer and it installs all the necessary drivers while the screen is blank. The other interesting thing is that that ODIN picks the phone with 0:COM 16 added. The phone is in perfect condition and has no cracks or scratches, so I'm interested to see what is wrong with it?