Chosen Solution
The thing is: I messed it up. I tried to put a transparent shell on my joycon and the right one now can only work attached to the switch. I’ve already cheked the battery and it’s working fine. I think it’s something related to the motherboard, but I can’t tell for sure. Someone here have a better understanding about the joy con circuit?
Cheers mate. Not sure if it’s the same issue I had, but in my case the SL button wasn’t connected to the joy cons mainboard. That’s why I couldn’t use it in horizontal mode, but attached to the Switch. Hope that helps. Regards
