Aporte original por: Minho ,
Hmmm... The fact that it worked just before you put in the screws makes me wonder if you didn't accidentally put in the screws in the wrong place. I would [guide|30962|take the screws out|stepid=52984] (for the screen bracket) and check them with a digital caliper to be certain they were not screwed in the wrong holes. You could have Long-Screw Damage Austin's suggestions are good too so I would definitely try them.