matt077 wrote:
It was due to a windows driver problem.
Roll back the updated driver, flash the ecu with the file again and worked fine.
Can anyone tell me why siemens mss5x flasher doesn't write the full 512kb flash but is fine for the 64kb flash?
Mss5x does full 512kb fine but doesn't write boot sector, which has VIN, ISN etc. Only garage flasher can do that.