Any gurus.. I cant really remember how it happened. But both joycon have no LED and no inner shoulder response. Everything else all working. Only found out when trying out Mario party...
The ribbon for the joy con rail was most likely disconnected, so you'll have to disassemble the controllers to reconnect them. Does it charge and work with handheld mode? Also, is it a custom shell joy con?
Strange, that should never happen with an unopened joy con. The controller pins probably aren't the problem since they charge and work wirelessly, but the source of the problem is likely still the ribbon cables.It charge and work normally. Stock shell and never open before