[ayhay]

MMI3GP_ECE_Hi_R_6_21_2.pkg.sig its too part of fsc

I like your thinking - but no it's not

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So far, from my research, I know that first 2 bytes of FSC is always 0x80 0x80, followed by 4 bytes of FSC version, e.g. 0x00 0x04 0x00 0x0b. Next byte is normally 0x84 for factory FSC and 0x82 for FSC with VIN. The you have usual string data for user/dealer/VIN/Timestamp etc...

Signature start at offset 0x4A to end of FSC.

In /mnt/efs-persist/Keys/FSCKey/FSC_public_signiert.bin is the public keys used to verify FSC signature, but I dont understnad format of FSC_public_signiert.bin yet. It seems not like a normal public key DER encoded file

you're very close, just KIS (Keep It Simple), run your openssl and give it a go.

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anyone that is stuck map 6.23.1 (8R0060884DF) on MMI 3G Plus wants to try my new solution? it doesn't matter what firmware you have K767, K814, K900, etc..

by the way, my solutions don't use patching\hacking and therefore never brick any MMI.

First in, best dressed

i would try Keldo
Please PN me the instructions