If the game crashes or refuses to load DLC, update your Sigpatches to the latest version to match your current Atmosphere firmware. Summary Checklist for Success Potential Solution DLC Missing Re-download from eShop -> Account Info Region Error Match game region to eShop region Update Failed Use "Software Update > Via Internet" NSP DLC Not Loading Update Sigpatches & Verify Title ID
A US region update will not apply to an EU region base game.
: This usually indicates a firmware mismatch or a corrupted update file.
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Playing on the Nintendo Switch lets you manage a virtual repair shop on the go. However, players using backup files, such as NSP or XCI formats, often face errors when applying DLC packs and updates . These issues usually cause the game to crash, show a black screen, or display the "The software was closed because an error occurred" message.
Which (Tinfoil, DBI, Awaited, Goldleaf) are you currently using? What firmware version is your Switch running? Share public link If the game crashes or refuses to load
Use a tool like DBI or Tinfoil to check the "Required Version" of the DLC. If there is a mismatch, you will need to source an NSP that matches your base game’s region. 4. Using DBI to "Clean" Orphaned Files
Update your Atmosphere sigpatches to the latest version to match your current Atmosphere and HOS version. 3. Reinstall in the Correct Order (via DBI or Tinfoil)
Once your NSP, update, and DLC are correctly fixed, optimize the Switch version: This public link is valid for 7 days
If they do not match, download a matching region version for all components. Step 3: Perform a Clean Reinstallation Using DBI
Completely remove the current PC Building Simulator install and its updates from the Switch's System Settings. Install Base: Install the base game NSP.