Unlock BMW CAS3++ ISTAP Key with Launch X431 IMMO Plus

Tutorial: how to unlock BMW CAS3++ istap PCF7935 remote key with Launch X431 IMMO Plus/IMMO Elite.

Procedure:

Go to IMMO- BMW latest software – Anti-theft key matching- Anti-theft key matching- CAS3/CAS3+ IMMO- Key Operation

Read key status.

Put the key to the X-prog3 coil.

The current key has been locked.

Go back to CAS3 key operation menu.

Select Key Unlock.

Put the key to be unlocked into the X-prog3 programmer.

Click OK to load a copy of key data file.

Unlock key successully.

Now the key can be used again.