The primary drawback of the "new" 90001 BIOS is the removal of a specific memory card exploit:
The short answer is that while the SCPH-90001 BIOS is the most "refined" and compatible with the final hardware revision, "better" is subjective and depends entirely on your specific use case. Understanding the SCPH-90001 BIOS Architecture ps2 bios scph 90001 better new
: Users with these "newer" units must use alternative exploits like Fortuna or OpenTuna, which require a manual trigger through the system browser rather than booting directly into the custom menu. Comparison Summary The primary drawback of the "new" 90001 BIOS