if you extract the SMC from the updflash.bin fbbuild makes you will see it is bit by bit the same as the SMC you put in mydata
so, as it does not add jtag hack to smc, if you use the original microsoft SMC, it will not do the jtag exploit and you will always get e79 error at boot.
and as i...
just a note to everyone here...DO NOT USE THE SMC EXTRACTED FROM YOUR ORIGINAL DUMP !
fbBuild uses the SMC you give it VERBATIM, it does NOT patch it to do the jtag hack (alternate points or not, i use the original points)!
so, for best results, extract your SMC from 9199 freeBoot updflash.bin...