My screen went dead yesterday morning. Went to Home Depot for the correct torx screw (T6) and also bought some Contact Cleaner. Cost me 12 bucks.

Was able to take it apart (the green screen was a little difficult around the 5 hard buttons on the right side). I thoroughly cleaned the inside and allowed it to dry. After about 2 hours, I put it back together and it worked just fine! I hope that did the trick for the long term.