if you want to restore the correct 2gb, try the following instruction using a Windows XP system.
LINK: http://mympx.org/forum/support-how/44613-ak2025-fw-ver-9-5-54-disk-error.html#post283964
In order to turn the player on, you flip the switch at the top to the left and you might have to hold down the play/pause button for 3 seconds. What else do you need help with?
(sorry for the sarcasm)