Well.. ok.. 'Killed it' is a harsh statement. To be more accurate, you've seriously 'disabled it'.
An example would be like giving it a frontal lobotomy.
Luckily theres a download section here and if i'm looking in the right place.. the firmware you could try is located here >
http://www.mympxplayer.org/firmware-...006-df416.html
Download it and try it.. according to the description it matches your original firmware version.
Good luck!