Here suggest you to use full test platform to test. If you don’t use platform, you can only disassemble and put the device back to the car again and again, which will damage the car and chip.
Full platform display
BDC board ( chip is 95256）
Step 1: Read FEM/BDC 8 foot chip data
Open CGDI BMW software and select FEM/BDC Key Match
It prompts “FEM/BDC needs to update the ECU program before key matching. Please ensure that the car battery has enough power. Please keep the device cable connected during the programming process. Do you want to continue?”
Then click “YES”
Note: The vehicle has no valid coding data and cannot backup. You can continue with further programming. After the completion of programming, you can use CGDI software to set the code. Do you want to continue?
Please click “YES”
Select the mode of read EEPROM
No suggest you to choose use programmer to read FEM/BDC 8 foot chip data. It’s difficult to remove the chip which has too much glue.
Please select the second mode:
Use EEPROM adapter to read FEM/BDC 8 foot chip data: Please remove FEM/BDC from the vehicle (FEM/BDC must be power off), and correctly connect the chip clip of adapter to 95128/95256 chip on FEM/BDC. Then click the next button.
Unplug the power cable and connect to CGDI prog BMW
Use CGDI eight pin exempt disassembly adapter to read data
Then save the data
It prompts “Put the FEM/BDC back on the car (the chip clip must be removed from the chip) and click the “next” button”
Power off, plug the power back to the platform, the chip clip must be removed from the chip
Select the second mode to read FEM/BDC 8 pin data
Read data success and remove the chip clip
Step 2: FEM/BDC key match
Select one of the unused keys
Click on Generate dealer key
Here you can learn more: http://blog.cgdishop.com/how-to-use-cgdi-bmw-to-adding-all-keys-lost-for-bmw-fem-bdc/
Step 3: Mileage reset
Select Mileage reset
Then click OK
Step 4: Set code
This module is not coded. Need to reset it.
Select BMW F/G Series Coding
Turn on the ignition switch
Select FEM anti-theft system to set code
Set code successfully