hello!
i install recalbox from direct link PI3 B+ and i edit recalbox.conf like this :

------------ G - UPDATES ------------

Automatically check for updates at start (0,1)

updates.enabled=1

Update type : default to stable

updates.type=https://review-507-b*mp-b-0jn0c0-archive-review-prod.recalbox.com

when i ran update, an error message as show. someone help me ?

or else, reicast does not lunch, i need to replace bios from others download here DO NOT POST LINKS TO COPYRIGHTED CONTENT!!!
now it's work.

and last, i need to set overclock on turbo or extrem mode to have correct fps rate with n64, reicast. is it normal on rpi 3b+ ? doesn't be more powerfull than rpi2 ?

i will test psx now ^^