MODBO 5.0 DUMP ADDED, THANKS TO PP5DI.

IF YOU HAVE SOMETHING ABOUT THIS MODCHIPS AND CLONES FIRMWARE AND ELF MENU PLEASE READ THE LIST:
1.You have dumped blue setup ELF directly from bios pins when console reads it (when you pressing circle and triangle).
(i have no device to do this, but it theoretically possible at a slow clock rate with arduino and uart data transfer from bios file on pc, step-by-step, emulating boot process of ps2 and bit-banging all required pins. Why? Because 33mhz bus too fast to record data for cheap. 99% modchip will work fine at some mhz instead of full speed. SPI addresses access timeline is needed too, it will help in reversing hex dump and probably the encryption. Cheap clones seems to built with cheap ics without too much logic cells for strong encryption.)
2.You have 1.99 and 2.00 version and can dump SPI flash.
3.You have HDPro - please share close-up photos of PCB.
4.You have modbo 760 with small chip - please share spi dump and i'm also curious about chip vendor because it in tqfp-48 and capable with all matrix infinity functions (but can't update), i haven't found any similar device. xc95144 too small for this.
5. You have Modbo 5.0 3.11m USBADV Edition - please share spi flash dump.
In any of this case - OPEN AN ISSUE OR PULL A REQUEST!
Also please reply if you tried this hex-dumps on any actual or clone modchip.

The Matrix Team Actel APA075 based modchips flash dump. (Not FPGA firmware!)
Contains:
Matrix infinity earliest and latest public found versions (verified with authentic modchip dump. from ps2-place forum)
Matrix MX4 dump
Matrix Homebrew dump
All of those modchips based on same ICs, but may have different FPGA configuration and have different spi flash content.
Dumps is obfuscated/encrypted but can be flashed in various clones and authentic chips with some function.
no warranty about proper function. for research only.