In the emulator, go to the menu and find the option to Install Files to NAND .

As of 2026, the status of Nintendo Switch emulation on Android has shifted significantly following the shutdown of the original

Yuzu is a popular open-source Nintendo Switch emulator originally developed for Windows and Linux. In mid-2023, an official Android version was released, allowing high-end Android devices (e.g., Snapdragon 8 Gen 2/3 with Adreno GPUs) to run some Switch games. The “upd” in your search refers to updates – either updates to the emulator itself (improving performance, compatibility, and stability) or game update files (patches/DLC).