ps one only plays copies

[THE COUNT]

First of all what chip are you using how many wires ,
also make sure the game is not one that is mod
chip protected , obveusly if it wont load all orig
games thats not the prob , check the way the
original game loads before chipping ,i have found that replaced units fron s**y are very slow to load originals ,how i tell is lift lid before chipping insert original activate door switch with something like small screwdriver . makesure room
is quiet press start and listen a few seconds after
pressing start you here lazer move twice and then shortly after the game boots . what i have found is if it takes 4+ seconds about to here this noise there is always a problem loading originals when chipped if you here the noise before there will be no problems when chipped . now what i do
is if it takes a long time to first two noises i slightly
tweak lazer to quicken this loading then it usually
chips ok .
i use a chip to chip programmer which has worked fine for on 12 months i make a copy of my original chip to change now and then .
hope this helps