How to use Launch X431 IMMO Plus, IMMO Elite, IMMO Pro/PAD or X-prog3 to program BMW CAS3, CAS3+, CAS3++ all keys lost https://www.obdii365.com/wholesale/launch-x431-immo-plus-key-programmer.html
If program BMW CAS2/CAS3 key car starts but remote not working, update BMW IMMO software to latest version. New version fix CAS2/CAS3 bugs.
Add CAS2, CAS3/3+ IMMO system file generated key function, supported to acquire EEPROM after CAS module read and generate dealer key using EEPROM file
Here it is a BMW X6 CAS3++ remote key, all keys lost
Key Learning
Generate key by ignition switch
Sync DME