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Save the original dump just to be sure. Best thing would be to get the original file from the idiot that messed with it!
If you use my file you must do an EFI flash. Installing a fresh copy of 10.11 usually does that, but you can also force flash it.
what do i do was download your file and i asked a friend programmer bios EZP2010, and program with your file .. when you say update EFI means clean ME regions? or enough install osx 10.11.1 to be ok?