Visit the official PlayStation 3 System Software Update page .
Here is the proper way to set up your emulator safely and legally. The Truth About PS3 "BIOS" Files Ps3 Emulator Bios File Download For Android High Quality
The "high quality" PS3 BIOS file for Android is currently a ghost . It is the holy grail that doesn't exist yet. Visit the official PlayStation 3 System Software Update page
You should only download the firmware from official sources to ensure it is "high quality" and safe for your device: PlayStation Official Support Site PS3UPDAT.PUP Instructions Ps3 Emulator Bios File Download For Android High Quality