Corder

Hi all. I'm new on ATRAC and have a problem with my NW-E507. It works perfect about year. Within last month I used it just as a flash drive and one day noticed that display constantly shows battery icon and the word "FULL". When I tried to switch to FM-radio nothing has turned out. But player still detecting as a flash drive by WinXP and I can transfer my music on it with SonicStage. I tried to reset it and upgrade the firmware to 2.0 version but it has not helped. So I think that the problem with miniUSB socket on the player (shield damage or short circuit), but maybe someone already faced this problem and can help me to fix it? Thanx alot.