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Absolutely. Even years after release, the LEGO Harry Potter Collection combines two full games into one cartridge/NSP. The v1.0.2 update transforms the experience from a "lazy port" into a genuinely solid handheld experience.
For completionists, the update also unlocks the ability to earn 100% studs without the infamous "Hogwarts Crest" glitch that plagued the PS3 and Vita versions.
If you are on v1.0.3 and still crashing, try deleting the game’s save data (back it up via JKSV first). Corrupted save files from version 1.0.0 often carry over. Alternatively, reinstall the base game using a clean dump. LEGO Harry Potter Collection Switch NSP UPDATE
Error 1: "Corrupt Data" after installing update.
Error 2: The update installs, but the game shows v1.0.0. Absolutely
Error 3: "Unable to start software. Please try again."
The most significant fix targets the original Years 5-7 campaign. Previously, exploring Diagon Alley or fighting in the Battle of Hogwarts caused severe lag in handheld mode (dropping to ~20 FPS). Version 1.0.2 introduces dynamic resolution scaling, locking the game to a stable 30 FPS in both docked and handheld modes. Error 2: The update installs, but the game shows v1
Before discussing the technicals of the NSP file, a strong reminder: You should only download updates for games you legally own. If you have a physical cartridge or a legitimate eShop purchase, here is the official way:
If you are using custom firmware (Atmosphère or ReiNX) and have legally dumped your own cartridge, you would look for the NSP (Nintendo Submission Package) version of the update rather than an NSZ or XCI to install via Tinfoil or DBI.