Chosen Solution
I’m having a kind of bizarre problem where suddenly my switch will alert me “unable to access micro SD card” — but this only occurs when the joy cons are plugged into the console. When I use them wirelessly, this issue does not occur. Additionally, if I wait a second, the alert will go away and my switch will okay as normally! Does anyone know why this may be happening? Thank you so much!!
Do you have a micro sd card plugged into the back? If you do, try removing it and seeing if the error stops.