I can see the problem. The ME firmware is corrupted (probably happened during an older FWUpdate) because HP has messed up while building the SPI image for that system. All their released SPI/BIOS updates (2008-2015) have semi-broken Flash Descriptor region starting Offset & Sizes. Some overlap due to wrong sizes.
Before/Wrong:
0x0 - 0x1000 (FD)
0x1000 - 0x3000 (GbE)
0x3000 - 0xD000 (PDR) → overlaps with ME as 0xD000 > 0xB000
0xB000 - 0x26A000 (ME) → overlaps with BIOS as 0x26A000 > 0x260000
0x260000 - 0x65F000 (BIOS) → out of SPI bounds as 0x65F000 > 0x400000 (4MB)
After/Correct:
0x0 - 0x1000 (FD)
0x1000 - 0x3000 (GbE)
0x3000 - 0xB000 (PDR)
0xB000 - 0x260000 (ME)
0x260000 - 0x65F000 (BIOS) → left intact due to Flash Image Tool v5 being stupid
I followed the Engine CleanUp Guide on the Engine/ME region only (to avoid any more FIT v5 stupidity) and manually fixed the FD where needed. At the attached archive you’ll find the full fixed SPI image, the fixed ME region as well as the fixed Flash Descriptor region (which should not cause ME corruption during FWUpdate anymore). Run Flash Programming Tool with commands:
fpt -desc -f 7G1_0127_fix_desc.bin
fpt -me -f 7G1_0127_fix_me.bin
fpt -greset
7G1_0127_fix.rar (1.85 MB)