The R button does not work at all when pressed. It can be pressed but I noticed it doesn’t move as far as the L button. The ZL button, when pressed, causes the system to shut off for some reason. I bought this used off of eBay and it doesn't have a warranty so I’m trying to avoid paying $50+ to get it fixed. My best idea is to check the connections and make sure they’re correct and solid. I can’t imagine how the ZL button got that messed up, I just hope it can be fixed.