e-Sys Coding of Donor ZGW in an F02, need guidance

[mobitechaz]

Hoping to catch the attention of some experienced BMW programmers with this thread. 2011 BMW F02 740Li. During a routine i step update with ISTA+, my voltage maintainer took a dump and I ended corrupting several modules including ICM-V, and JBBF. I was able to repair all of the modules except for the JBBF module, which appeared to have an "unknown" file that really confused esys and ISTA... it was stuck in between I steps apparently or simply corrupted, had BLTD but no CAFD and minimal firmware. So I resolved to harvest a good known JBBF module from a donor vehicle, and it was nearly plug and play, all functioned resumed, however, to be thorough I flashed it through ISTA to update firmware and VO and match it to my vehicle. Big mistake. During programming (using ICOM next clone) my ICOM rebooted, interrupted programming and bricked the ZGW. Ordered and installed donor ZGW same part no, but from a F01 x drive. Im now able to connect to vehicle and engine starts, most everything functions, but still have error codes for non VIN coded JBBF and ZGW modules. AC signal is missing as well which I attribute to the ZGW variant. I have attempted to flash in esys, but during flash, getting a ETHERNET JBBF_00 not found error. I understand that ISTA+ may be more advantageous thatn eSys for coding and upgrading the donor modules, however, im hestitant to reattempt with my ICOM given the past experience. And having no luck connecting with ISTA+ through ENET, even though my laptop pings the car well on a 192.254 domain, so connection is good, ISTA+ is just rejecting my ENET connection for some reason. Its my humble understanding that I may need to modify my FA in order for eSys to TAL Calc and code. When I "detect for SWE" I am only getting yr 2015 i steps, whereas the rest of the vehicle was upgraded to Nov 2024 I step (520). I was hoping someone with some experience might be able to guide me through the steps I need to take to code the JBBF and ZGW to my VIN, and get the AC signal back. Thanks for taking a moment.

[mobitechaz]

* Correction: the donor ZGW was from a 2011 F02, but 750Li xDrive.

[mobitechaz]

Any suggestions would be greatly appreciated, thanks