Installed wrong software

I just got my Clip Jam. During reading some forums I decided to update the software. I found a forum with software 1.43(Clip Sport) and loaded it onto my Clip Jam. Big Mistake as I am now aware.
My Clip Jam powers up, but that’s it. Just shows "SanDisk on screen. Computer doesn’t show the Clip Jam on “Devices and Drives”.
Hopefully I haven’t created a dead MP3 player.
Any suggestions?
Thanks

Contacted SanDisk
They are replacing Clip Jam. Great people.