Here is the story of how you actually "download" the necessary system files to get your games running: 1. The Official Firmware (The "BIOS" Equivalent)
To display text correctly (like the system menus), emulators require a specific font package.
These are small license files required to launch specific commercial games. They are unique to each game and are usually found within the game's directory or generated using tools like NoNpDrm on a hacked console.
For a step-by-step visual on how to install these firmware files into an emulator, check out this guide: How to Play PS Vita on Android: Vita3k Emulator Setup Guide Tech Thusiast YouTube• Dec 31, 2023 How to Play PS Vita on Android: Vita3k Emulator Setup Guide