: Open the DBI application from the Homebrew menu (Album) on your Switch.
: Plug your Switch into your PC via USB-C. A new drive icon for the Switch will appear in your PC's File Explorer. Copy Files :
To install the NSP file, you will need a modded Nintendo Switch running Custom Firmware (CFW) like Atmosphere. The most reliable modern method uses DBI , which handles updates and base games efficiently. Prerequisites
: Select "Run MTP responder" in the DBI menu.
: Your Return to Monkey Island base NSP and the v1.0.3 update NSP. If they are inside a .rar file, you must first extract them on your PC using 7-Zip or WinRAR . USB-C Cable : To connect your Switch to your PC. Installation via DBI (Recommended)