Essentially, Spot Pass was just a very Nintendo-esque term for an always-online system that delivered notifications and game updates to 3DS and Wii U consoles without requiring anything from the user.

This applies to both the 3DS and the 2DS. Nintendo has made the official statement that it will no longer accept repair orders for the Nintendo 3DS LL and Nintendo 2DS due to a lack of required parts.

When Nintendo officially ended production of the 3DS in September 2020 ... The firmware will also lock up after I check the system notifications, but they are fairly annoying in the first place ...