Just got mine in the mail yesterday. It turns on and makes some sounds but nothing on the screen. I left it plugged in for a few hours to a 2A charger and let it completely charge before trying anything else. Turned it on and nothing. It makes sounds, but the screen wouldn’t turn on. I held com while powering up and pressed 7 and the screen flashed some white vertical lines and stayed there. Turned it off for a few seconds and powered back on. It will still make noise but completely black screen.
Can someone walk me the the exact keystrokes to do a firmware upgrade blind?