I am so technologically inept
i bought my SE w810i off of EBAY unlocked (LALA West) and it worked terrifically! but awhile ago I had accidently locked myself out of my dorm room for a few days and my phone was dead for a few days. I had my alternate battery charging on the desktop charger for all of those days. When I eventually got back into my room, I but the fully charged battery in my phone and instead of the phone turning on, it just flashes ths white screen....over and over again. Now people are talking about firmware and flashing my phone and whatnot and I have no idea what anyone is talking about.
A little help?