i have mp3 players and i usually format them( one transend, another orchid(local with gurrentee)) and nothing happened still now.. already 1yr passed.. who told formating ruines mp3 player???.. The firmware used by the player remains in some other place and not in the place wher user formats..
its a "local band" problem.. many faced the same.. see if u can replace else throw as it cant be repaired except the company itself