[xxxjecxxx]

Yes, exactly, after aplying the usb patch, you have to use Esys / FSC Extended : 1 writevin... and 2 storesigcert (from 02_certs, chose sigs.der)

I've completed this step. I followed the PDF again to ensure I didn't miss any other steps. Here is the current status of each FSC.

--> Read the state from "1" ECU(s) <--

HU_CIC[DiagAddress=99(0x63)]
WBA3A9C56DF475240
RootCertStatus accepted
SWSigStatus rejected
SWTApplications
----------
AppID 23(0x17)
UpgradeIndex 1(0x01)
SWTType SWTclassic full
FSCStatus accepted
FSCCertStatus accepted
----------
AppID 25(0x19)
UpgradeIndex 1(0x01)
SWTType SWTclassic full
FSCStatus cancelled
FSCCertStatus accepted
----------
AppID 27(0x1B)
UpgradeIndex 1(0x01)
SWTType SWTclassic full
FSCStatus cancelled
FSCCertStatus accepted
----------
AppID 111(0x6F)
UpgradeIndex 1(0x01)
SWTType SWTclassic full
FSCStatus accepted
FSCCertStatus accepted
----------
AppID 156(0x9C)
UpgradeIndex 1(0x01)
SWTType SWTclassic full
FSCStatus accepted
FSCCertStatus accepted
----------
AppID 155(0x9B)
UpgradeIndex 1(0x01)
SWTType SWTclassic full
FSCStatus accepted
FSCCertStatus accepted
----------
AppID 45(0x2D)
UpgradeIndex 41(0x29)
SWTType SWTshort
FSCStatus accepted
FSCCertStatus not available