After attaching the Joy-Con controllers to the Nintendo Switch console, the console does not detect that they have been attached.
While on the HOME Menu or on the Controllers menu, the Joy-Con controllers are not registered as being attached to the console.
The Joy-Con controllers may work wirelessly while in TV mode or tabletop mode, but are not recognised while attached to the console.
The Joy-Con controllers can be used as wireless controllers with Nintendo Switch Lite.
What to Do
Ensure that your console has the latest system version.
If your console is already up to date, be sure to restart it by holding down the POWER Button for at least three seconds, then selecting Power Options followed by Restart.
If you are unable to perform a system update due to the Joy-Con controllers not being recognised, you can use the touch screen to connect to the internet and enter the required fields.
Detach the Joy-Con controllers from the console, and continue with the next steps by troubleshooting one controller at a time.
Reset each Joy-Con by pressing the SYNC Button once. Then press any other button on the controller to power it on again.
Attach the Joy-Con to the console, ensuring that it is correctly oriented and inserted all the way.
If the Joy-Con is still not recognised by the console, try to detach and reattach it to the console a couple times.
If at all possible, test another Joy-Con with the console.
Situation Not Resolved
If another Joy-Con works with the console, only the non-working controller will need to be repaired.
If another Joy-Con is not recognised by the console, or if another Joy-Con is unavailable, the Nintendo Switch console and the problematic Joy-Con may need to be inspected.
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