If you prefer not to use a PC during the installation, you can install directly from your SD card. Transfer File : Copy the update NSP file to a folder (e.g., ) on the root of your Switch’s SD card. Open Goldleaf from the Homebrew menu. Locate & Install Explore content Find your update file and select
After updating, the game might ask you to "Check Brain Age" daily. This saves to the internal clock. If you time-travel (change system date for Animal Crossing, etc.), the game will lock you out for 24 hours. Fix: Set system time to "Synchronize via Internet" (if banned, set manually to today’s date).
Update your Atmosphere signature patches or sys-patch module to match your current Horizon OS firmware version, then re-install the update. Error: "The software closed because an error occurred" dr kawashimas brain training switch nsp update install
Ensure you are running the latest version of Atmosphere to handle the signature checks of the newer NSP update. 5. Finalizing: Verifying the Update To confirm the update was installed correctly:
Simply drag and drop the Dr. Kawashima's Brain Training update NSP file from your PC directly into that folder. If you prefer not to use a PC
The latest update (as of 2026) requires Switch Firmware 13.0.0 or higher . Older firmware (12.x or below) will fail to launch the update.
. Choose to install it to either the SD card or System NAND. Version History Highlights Key Features & Changes Locate & Install Explore content Find your update
: Launch a homebrew tool such as Tinfoil , DBI , or Awoo Installer from your Homebrew Menu. Install the Update : Navigate to the file location in your installer. Select the update .nsp and choose "Install."
Before attempting the update, ensure you have the following:
: Ensure you have the .nsp update file for the correct region (EUR or JPN, as this title had limited physical releases in some regions).