Why when press square for retroarch psmini go in poweroff?

[Metro-City]

Hi, I downloaded the version retroboot, but in menu selection if i press tringle, psmini don't go to retroarch but it turns itself off.

[screemerpl]

Triangle ? To open RA you press Square. Also if something is messed up with the install RA may not start - Try clean install.

[Metro-City]

Hahaha, you are right i confused the keys, thanks, i did a clean install, but if i press square the console will shut down anyway, just i press start i choose a psx game and i press square i get into the retroarch. P.S. do you know if the .pbp files are recognized when there are 2 disks? because in the scan I see it as a single disk. Thanks^^

[Metro-City]

I downloaded the retroboot version, clean installation, but at the main menu if I press square the console turns off anyway, how can I solve it? thank you