Unlinking From Nintendo Switch Parental Controls
You can unlink your console from the Nintendo Switch Parental Controls smart device app using the methods below.
If you do so, play activity and play time restriction settings will be deleted and can't be recovered.
Unlinking from the smart device
If you want to unlink a console from the Nintendo Switch Parental Controls app, select the appropriate console in the app, touch the "i" (information) icon and then select "Unlink".

After this, the link will be removed from the console the next time it connects to the internet.
Unlinking from the console
Open System Settings from the HOME Menu, then select Parental Controls ⇒ Unlink App and enter your PIN.