modchip question!!!
 

I have a modchip, it was once install in a wrong welding place, but now it is working well after correcting the problem.
I can play some copiest game, but there are some which I can't play. for ex. I have two japan soccer back ups which I can't play?
a have the chip from playstationmods.com

if you can play some backups it probably isnt the chip m8

Definatly not the the chip as rimmer stated, so this leaves the backups them selves.

You could try using different media.