Because the hardware changed (the I/O chipset, the DVD controller, and the security sectors), Sony was forced to release a version. This is where the "new" tag in our keyword becomes critical.
When collectors search for scph90006+bios+new , they are looking for the final firmware revision released for this Asia model. It is often labeled v2.30 (or similar late-stage revisions). Here is what changed compared to the "Old" (SCPH-70000) BIOS. scph90006+bios+new
From a factory standpoint, the BIOS dictates the region (in this case, typically NTSC-J) and the system's ability to read discs. For the average user, this works perfectly until the system begins to age. Because the hardware changed (the I/O chipset, the
: Sony designed this BIOS as a "mod-proof" system to patch the memory card exploit used by FreeMcBoot (FMCB) It is often labeled v2
and allow it to play original or master-patched discs from any region. MX4SIO / SIO2SD : Because Slims lack an internal HDD bay, many users use an MX4SIO adapter
Unlike earlier Slims (7000x–7700x), the 9000x series moved the power transformer inside the shell, making it more portable but slightly more prone to heat if ventilation is blocked. BIOS Sound Design:
For the average user playing Final Fantasy X or God of War II , the difference between the SCPH-90006 "new" BIOS and a standard SCPH-77004 BIOS is negligible.