Another myth: updating to 13.0.3 via NSP on a banned Switch will cause a brick. This is untrue—NSP updates, when properly signed and installed, are indistinguishable from legitimate updates to the OS. The only risk is with improperly dumped or corrupted NSP files.
For a breakdown of the specific online ranking fix and what it means for your GSP: [SSBU] Version 13.0.3 Update BlueSirius Gaming YouTube• 12 Oct 2024 0.1) instead? super smash bros ultimate nspupdate 1303
This update locked in the meta for good. Notable changes include: Another myth: updating to 13
Super Smash Bros. Ultimate version 13.0.3 patch notes released when properly signed and installed