PlayStation Development Network

Hello friends.
Currently I bought a PS1 region Japanese model SCPH5000 and I read that to play ntsc u / c games you had to replace the bios.
Today I received my 29f040b chips and proceeded to burn the original SCPH-7001 US bios. on the ps1 SCPH-5000 J
I already installed it on the motherboard and the bios is already in English but there is a problem, the ps1 seems to be still in the Japanese region because it only reads Japanese discs and not American ones.
What's up, does anyone know what is going on?

The HC05 will still be locked to Japan. You'll need a modchip.

Thanks for the information. It really helped me!

Shadow wrote: ↑October 12th, 2020, 12:53 pm The HC05 will still be locked to Japan. You'll need a modchip.

I would like to know where the HC-05 is located. I have an other american donor ps1 for parts.
I could get the part I need from him.

Usually it's the non 80 pin model (since the 80 pin one is rare).


It's this chip right here