1.3: Please turn on the switch, keep the vehicle battery voltage no less than 13.0V.
1.4: Perform “Backup (read) coding data”, and save the data for later use.
Step 2: Update/program ECU
2.1: Turn ignition switch to ON position. click “Step 2:Update ECU”
2.2: Software pop-up the following tips, please follow instructions to disconnect battery and other charging device, remove the FEM/BDC, use car universal programmer (e.g Yanhua CKM100) to read EEPROM data, save in BIN format in PC
2.3: After complete above work, please go back to the BMW-FEM/BDC interface and click OK
2.4: The software prompt to load the original EEPROM data which was read from the vehicle by programmer.
2.5: The software calculate the corresponding new EEPROM data and prompts the user to save it. (saved in BIN format as well)
2.6: The software prompts to write the newly generated EEPROM data back to EEPROM chip, solder the EEPROM back to FEM/BDC.
Install the FEM/BDC back to vehicle. Recover normal power supply for vehicle and turn on ignition switch.
2.6.1: Use universal programmer (e.g Yanhua CKM100 Car Key Master) to load the new data which is calculated by BMW-FEM/BDC key programmer, then write in EEPROM.
2.6.2: Solder the EEPROM back to FEM/BDC. Install the FEM/BDC back to vehicle. Recover power supply for vehicle and turn on the switch. Go back to the BMW-FEM/BDC software and click OK.
2.7: Software prompts to upgrade ECU. Please ensure the vehicle voltage no less than 13.0V.
2.8: The software prompt that upgrading ECU. It will take 15-30 minutes. The software began to count down.
2.9: After completing ECU programming, the software prompts the user to recover the first reading original EEPROM data by programmer. And install the FEM/BDC and restore normal power supply for vehicle.