Search for "PS Vita System Software Update" on PlayStation’s official website.
: Go to File > Install Firmware and select the .PUP file you downloaded from Sony.
Once the font package is downloaded, follow these steps to install it into the emulator:
The font package contains the system fonts used by the PS Vita’s OS and games. These include Asian character sets (Japanese, Chinese, Korean) as well as European special characters. If you attempt to run a game without the font package, you will likely see:
: Repeat the process by selecting File > Install Firmware again, but this time select the Font Package file.