PsNee Region Free Installation (PS1) Updated Mar 15, 2026 · 8 min read · 0 viewing Previous PSIO Switchboard Installation (PS1) The PSIO is a device that plugs into the back of the PS1 and allows you to load games from SD card i... Next Laser Tuning (PS1) Depending on your model of PS1 there are several things you can calibrate when tuning the lasers. Th...