[Matthew53]

try to reboot CCC, after that, it usualy start work

i have different problem - are you able to code MULF2? old e60 with clasic key, i'm not able to code mulf, afterwards i'm able to play music, but not able to enable bluetooth in menu. have to code it in some different car/or my desk setup afterwards it works.

I'm carrying out most reset and CCC reboot after connecting the loop, but without the result.

I can't either, also have old e60. You are probably not able to code it in car, because there was TCU originally, not mulf2, so the car can't recognize this newer ecu. In my case I have no connection in loop so can't code it.

did you change time criterion? try #0307

Yes, I've changed to #0408. Mulf2 obviously appear in ECU list, but couldn't code it due to malfunction of loop, which is probably the CCC corruption.

Have to figure out if CCC can be demaged the way that can't process the signal from the loop and then crash.