New here but would appreciate some help. Have a Galaxy S2 on Sprint network and out of nowhere yesterday the home/menu/back/search buttons stopped working and the phone is running really slow. It came back for like 5 min yesterday afternoon but then started again. I've already done the factory reset and it's still the same way. If I press the call, message, contact buttons on the home screen nothing works. Can someone tell me what to do? Pleeeeeeese. No warranty or insurance. Stupid move i know.