Here UOBD2 share a step-by-step guide on how to use CGDI BMW programmer to do all key lost programming for BMW CAS3+.
What You Need?
Step 1:Read ECU EEPROM
Run CG100 software,enter menu to select “ECU”
Select “BMW E Series”à”MEVD1724(N20)”
After then CG100 software will show the wire connection diagram as below,you need to build the connection according to the diagram.
Click “Read EEPROM”
After data reading successfully,save the EEPROM data on your laptop.
Now you can see the ISN and VIN here:
Step 2:CGDI BMW Programming Key
Connect CGDI BMW Programmer to vehicle by OBD port,then select “BMW OBD Key Match”
Click “Read Key info”
Pull out the key from the ignition when it prompt you as below massage
Then save the data file
Select the key position to program and then click “Generate dealer key ” to continue
Now,here it will prompt you to enter ISN
Select “have engine data,the next step will load the engine data”
Load the engine data read out the CG100 in step 1
Put the new blank key into the CGDI BMW coil,then click “OK” to continue
It will prompt you that “Whether the key currently programmed is a smart key”
Note:If it is a smart key,the key will be locked.
Click “No” to continue
Wait a second minute,it will show the programming key was successfully
After learning,it can be used normally.