MM3 chip doesnt seem to work
I have bought an MM3 (euro) chip from EurAsia and installed it in a 7502 machine, I used 7 wires.
Pin 2 is not connected to anything.
At first it made the laser spin like crazy, made a lot of noise... i figured that wasn't a good sign... so i did all the soldering again to make sure it wasn't faulty.
After that it functioned fine... but it does not seem to play backups.
I made a copy of an original (dino crisis) exactly like a tutorial on this website said, made the iso.. burned the iso.
But on booting up this backup the psx shows me the cd-player screen.. the game doesn't boot up.
What could be wrong?
Is this chip empty... did they forget to program the HEX code?
Or is perhaps my soldering wrong?