Originally Posted by me1900
i had somehwat the same problem. Its the USB enumerateor in the player itself that doesnt reset to player mode when u disconnect it from puter. Reset wont work. First, make sure its off anytime u plug it into ur puter. You have to plug it back in the puter then unplug it. Then power it on. then it will turn back off. Recharge it using a external ac adaptor meant to charge these little players.
You saved me from having to buy a new mp3 player. I followed every single step you gave. My Sony has come back on.