I've got an E38 ECM trying to unlock. Someone put 08 OS on a 2010 service number. ECM responds, I was even able to change the VIN in EFI Live. EFI Live will unlock and READ it fine, using ALT KEY 2 it unlocks and reads. Of course EFI Live will not tell me what the key was. When I try to unlock the ECM in the v7.5 software it is not successful. The serial number is corrupt, and EFI Live won't program the ecm. My guess the 7.5 is not trying all the same ALT key's that the v8 Read/Write program uses.

Anyone know what KEY EFI LIve is using when it gets to the ALT KEY's? If I can find out the key, i have alternative means to program the ecm that doesn't care about the SN being corrupt.

by ALT Key I mean....EFI Shows status when you click on Read, I selected "Try Common Alternative Keys"


unlocking: Trying MFG Key
unlocking: Trying AUTO Key 1
unlocking: Trying AUTO Key 2
unlocking: Trying FS Key 1
unlocking: Trying FS Key 2
unlocking: Trying ALT Key 1
unlocking: Trying ALT Key 2 when it gets to this one, it takes off reading the calibration.