Topic: BMW FEM/BDC add keys procedures (with Video, words & lots pictures)
Car model and year: 2014 BMW 1 series
Tools to use:
- Yanhua BMW-FEM key programmer, PC, digimaster 3(Optional)
- Disassembly toolof BMW FEM computer, charger, soldering iron
Plug the BMW-FEM adapter into the OBD port of the 2014 BMW 1 series.
Open the BMW electronic door, and ensure the BMW voltage is not lower than 13.0V
Use the USB cable in the package to connect the BMW-FEM adapter and the computer.
Open VVDI2 BMW V4.3.0 software, after serial no click the “Connect” to Break off”
Step 1: Backup(Read) coding data
Save the coding data that read out, because the step 4 will use this data.
Step 2: update / program ECU
Disconnect the battery power first, remove the FEM/BDC, and use the programmer to read and save the original data of 95128/95256 EEPROM. Complete the above work firstly, then click “OK”.
1) Disconnect the battery power first
2) disassemble the FEM computer
3) Before disassemble FEM, take photo so that you can remember exactly the position of every fuse.
4) Disassemble the 95 series chips, read out the data and save.
5) solder the eeprom IC in the FEM computer board.
When disassemble and soldering the chip, please protect the small resistor close to the chip.
6) Solder the IC chip that is disassembled from the FEM board onto the BMW-FEM programmer to read out the data.
7) use the computer to open digimaster 3 software (D3 is optional)
Click on “Special programmer”, choose the corresponding model IC to read out the data.
Save the data in the form of BIN.
Open the bin file
Read the BMW-FEM/BDC instruction saying “Please write the newly generated EEPROM data in 95128/95256 with the programmer. Solder it back to FEM/BDC and install it back to the vehicle. Restore the power supply of the vehicle. Complete the above work firstly, then click “OK”.
Writing the data
Write into the data successfully
when the new data restore into the IC, solder the IC back to the FEM computer board.
Put the FEM computer board into the shell and reinstall it back to the computer.
Write the 95128/85256 into the new EEPROM data using BMW-FEM adapter, then solder it back to the FEM computer board. Then reinstall the FEM computer into the computer, supply power to the vehicle. Then click on “OK”.
Will upgraded ECU, please ensure the vehicle battery voltage is not lower than 13.0V during the upgrade, the process will take 10-30mins, please wait patiently.
Use the BMW-FEM adapter to restore the original 95128/95256 EEPROM data that is read out for the first time. Install the FEM/BDC, supply the power to the vehicle. Complete the above work firstly, then click “OK” to confirm.
Click “Restore data” then open 95128.Bin to write into the data.
Step 3: Add key.
Please put the working key close the coil (Located on the lower right of the steering wheel)
read ISN code.
Take note the working key ID
Again get prompt “Please put the working key close the coil (Located on the lower right of the steering wheel)”.
Tick on the key NO. (Free) and click “Learn new key”
BMW FEM/BDC Learn new key successfully.
Step 4: Recover (write) coding data.
add BMW FEM/BDC key successfully
Special function: Delete (Disable) key
If the car owners have the requirement to delete the useless or the lost key, please do the below operation.
Note: please do not delete the working key by mistake.
Click on “Delete (disable) key”
Prompt: Please put the working key close the coil (Located on the lower right of the steering wheel)