You got a spi programmer… but didnt prepared yourself before…great planning.
Now take a look at the motherboard, like you see that T5610 motherboard in the linked thread, 2 SPI chips 8 and 16 SOIC, labeled SPI, starting digging.
EDIT: Only after a recovered system, the mboard has a service jumper, with this the best way to mod is dumping the bios region with FPT tool (and a full backup and/or by regions), mod it and flash again with FPT.