zephir usb board 2060-771737-000 REVA not compatible with zephir sata 2060-771820-000 REVA ( do not power on motor )
and if somebody solved this and could report - much appreciated also PM.

in your case here, you killed the pcb (i think)
even with new rom soldering it will not work right?

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Kuwait Data Recovery - UNIX GTC
The only reason for time is so that everything doesn't happen at once. By: Albert Einstein

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A backup a day keeps DR away.

It is better you can use same board number PCB to be the donor PCB. Also you need to move your original PCB's BIOS to the replacement PCB.