TheGuardian , great that the player is now recognised by Windows again.
What firmware version is the other working player? Currently only v9.0.43 and below are supported by the extraction tools. The other player maybe using a higher version number.
You can try to use S1clone instead to clone the working player, and flash it into the player to be repaired. Guide is here
http://www.stud.uni-karlsruhe.de/~uw...?Tools.s1clone
Good luck, hope you can get it working again.