Emu XL-7 & MP-7 User's Group

I bought used XL-7, how do I bring everything back to the original 
state, the way before it was shipped??

I mean

patterns
Songs
Presents and more...........
I hope you can because if you can't buying used it not good idea.
if that is true and you can't bring it to the original state does 
anyone has saved backup of the original form before he or she edit it.
 
Thank YoU
 
NiR