hello guys, i know that this maybe not the nicest first contribution. But in the past I could always turn to this forum and solve my problems just by reading.

Now I have a completely different problem. I was trying to help a friend with his immobilizer. He had given away the old control unit to have it done. there they gave him a usb stick with files but not the broken control unit.

He then procured a replacement control unit and I then wrote the data to the control unit via Ktag. now it's a heap of shit.
He was told that he should simply buy a Med9.1 control unit, you can install it anywhere because the descriptions on the devices mean nothing.

I found a backup that matches the label. but I can't write Ktag anymore. it just breaks off at 9%.
The car wants to start, but the real estate is active. I can't get it turned off.

I see. I can only write the flash file that is now on the control unit. everything else breaks off.

here you have the set, this is crypto ecu
if ktag does not want to save the eeprom you have to disassemble the ecu and save the eeprom with the programmer

I also thought that I could simply write any med9 data status I wanted to any med9. and as I said, what I wrote was given by the tuner.

Hello, I have to thank you 1000 times. The car starts again after I took out the immo, and after writing the eeprom I was able to write the data status again via obd. thx