Hello, I have an odd issue. I have a switch with only the right joy con not connecting. It’s a known good rail, known good joy con, and no other issues are present. Any ideas?
I've had this and factory resetting the switch cured it, as has opening the joycon and temporarily disconnecting the batt.
Since you can not turn off the joy con, I could either recommend isoprophyl cleaning and disconnect the battery if that step does not work.
Reviving this dead post. I have the same issue, known working rail, known working joycon. Cleaned the connectors on the board and the joycon rail, but stuck at start up screen. My right controller clicks in and is recognized but not the left. . . any videos or resources for diagnosing this issue further?