SKP1000 car key programmer will disable/enable key for BMW and Mercedes. Here’s the demo guide on disable smart key on a BMW CAS4 523 year 2011. Key information: Original key: 4-button smart key (full keyless) Frequency: 315MHz CAS type: CAS4 Device to disable key: SKP 1000 tablet auto key programmer Note: SKP-1000 will enable/disable BMW Benz smart…