PsNee

PsNee is a 6 wire install and will work on any Ps1 revision and on any Region Ps1 Japanese Ps1s also have extra protections in the bios, in order to make it region free you will also need to swap the bios with a use bios or the custom nocash bios. I have bios chips available here PS1 Bios Mod Keep in mind that Pal games will likely have display issues to the 50htz to 60htz differences.   For install Diagrams I'd recommend checking out Quade's Page Here! Check out the github if you'd like to learn more or make one yourself! https://github.com/kalymos/PsNee