With the official 3DS eShop closed and Nintendo shutting down most online servers for 3DS in early 2024, why bother?
If the system keeps asking for an update even after installing 1.2, it usually means the base game CIA has incorrect internal version numbers (often listed as "0.0.0" in FBI). This is an annoying prompt but typically doesn't break gameplay. Interesting Troubleshooting Fact pokemon ultra moon update 12 3ds world cia work