820-3476 Serial Unavailable after liquid damage

[PhilipC]

No boot lIquid damaged only in U6100 area, pins 5678 were all corroded pulled the chip cleaned pads on board and chip resoldered and replaced R6102
Machine now boots but serial is unavailable in "about this mac" and in ASD,
Read info with medusa 2 "Fsys block not found"

 

[2informaticos]

Bios corruption has been reported before by dukefawks on liquid damage cases.
Use a dump for same board, just copy your ME region on it.
Then use Medusa to change serial and fix checksum.
Medusa can also clean ME on the new file...

 

[PhilipC]

The only machine i have which is the same board is a late 2013 but this machine is a mid 2014. Can I use dump off of that?

 

[2informaticos]

Yes, but don't forget to make BIOS backup for both machines...

 

[PhilipC]

Thanks all working