A4 fly lcd question
so ive decided to get back into paintball and bring out my a4 fly. Its battery has been dead for like 3 years now and i just started to charge it today (for like 5 mins) to see if it still worked. However some of the pixels on the screen dont work so now its hard to read. could it be from sitting too long, is the board bad, need more charging, because when i put it away the screen was working fine. If it is a bad board how much will it cost for a new one or to have mine fixed and where can i get this done thanks in advance.