Sony released several revisions of the PS2 BIOS over the console's lifespan.
: Download and install the AetherSX2/NetherSX2 APK on your device. aethersx2 bios 4mb
While "4MB" is a general size indicator, the specific file name often depends on the console model it was dumped from. Common high-compatibility files include: (USA) SCPH-90001 (USA) SCPH-39001 (USA) SCPH-50003 (Europe) How to Set Up AetherSX2 BIOS Sony released several revisions of the PS2 BIOS