Original post by: DonleySeibel ,
My advice would be to plug in a new lock button, you don't even have to install it fully. Simply plug it in a try that reset. As an expericanced tech I can tell you that this is a fix for A LOT of things when they start acting buggy. I would also try connecting a screen and see if it is your LCD that has gone out. If you don't want to order a new lock button and try that I would try a battery reset by disconnecting the battery and reconnecting it however you should make sure that you are grounded (ESD safe) Hope this helps!