bmw me7.2 problem

[donesko]

740i 0261204620
I read file with mpps, write lamda off file (corrected cs with winols), car cranks but doesnt start, no DTCs in ecu.
I can write orignal file but still only cranks doesnt start?
what is problem here anyone

[a500tut]

You need rewrite flash and syncro ecu.

[donesko]

write full file in boot only ?

[a500tut]

Yes or desolder flash.

[Inquizit0r]

You don't need to desolder. Just do sync with INPA or DIS or ISTA-D or BMW Scanner. That enought 100%

[donesko]

I will try to sync first, but weird is that there is no dtc in dme or in cas, and I can still read/write over obd (64k) part

[donesko]

wrote virgin
made ews-dme sync
doesnt crank, no dtcs in dme or ews
But car starts and drives normaly if I shortwire starter relay in fuse box.
wtf ?

btw. I also made update with winkfp to 368804 but still same thing

[donesko]

Solved, made new virgin from 740i file , sync ews-dme. started right away.
Maybe that other virgin is for manual gearbox, so ecu is expecting clutch press to start

btw. no need to desolder , k-tag can read in boot, but must use patched exe so It can save file with wrong cs