I need help. I bought an used Samsung Moment via Craiglist about 3 weeks ago. Initially, I had to wiggle my cable to get it charged. After few days, it was not charging nor communicating with my laptop via USB cable. Of course, the Craiglist seller was not willing help me. After contacting Samsung, I had sent it in to be fixed since it was still under warranty. It just came back today with a note saying: Your phone is damaged beyond economical repair in the form of a warped board, or missing or damaged components. The factory warranty has been voided. I know that I can charge my battery via some kind of external batter charger that is around, but can I update my phone and/or root my phone without using USB cable? Can I use a bluetooth connection? If not any idea or suggestion? Thanks.