If BMW F series cars appear abnormal window lifting and headlight illumination, the main reason must be the failure of the 2 relays in the FRM-Foot Space, not data and chip. But if the chip data are missing, it can be restored with CGDI CG100X.
Here takes BMW F18 9S12XET512 as an example.
Connect CG100X programmer and computer via USB cable
Connect CG100X and Pro Adaptation line, and connect GND, BKGD, RST and 5V cables to the chip according to the wiring diagram
Run CG100X software
Select BCM>> BMW>> FRM-Foot Space>> F18>> 9S12XET512>> Start operation
Start to detect 12V supply power, read chip ID, read chip data…
Read DFLASH data successfully, and then save it
Continue to partition and write DFLASH data into chip automatically
Repair data successfully.