What Im about to ask has probably been answered before, but Ive researched the forum with no similar solution to my problem. I can get the ps3 controller successfully paired on the retroarch on my ipad 3, but it doesnt stay saved after exiting each game. For example, I open the nes, hit the space invader icon, do the settings to pair, hit the ps3 button on my controller, exit, go to core,input, plauyer1 to configure the analog sticks to work, etc, then the controller works. The controller configuration doesnt stay saved after I exit the game, any help on how to save permanently the controller button & connectivity configuration saved? Im stumped. I read that you’re supposed to save settings in the space invader icon & then quit content, but it doesnt work. =(
Have you tried totally quitting out of RetroArch via the RGUI menu after getting it set up?
i figure it out, its sort of tricky dicky 
Hey I was wondering if you would be able to explain how to save the PS3 controller config. I know how to change the buttons to what i want but whenever i leave the game or close the app it never saves the settings. please help me 