Straight from EQT website:
How do I perform wastegate adaptations with Cobb Accessport? I can't connect my OBD11/VCDS to my car anymore?
When Cobb developed the consolidated rom package for the VW Golf GTI/R and variants, they changed the ROM ID value which “broke” the VCDS/OBD11 rom readability. Fortunately enough, Cobb also added some new monitors, one of which is the “Turbine Actuator Voltage” monitor. This monitor allows you to set your wastegate voltage (~3.3-3.7VDC in most cases), and then utilize the “Wastegate Adaptation” setting in the troubleshooting section to set your adapted voltage. To use for setting is38 wastegate voltage, the car just needs to be in the ACC/ON position (not running). You can then manually set your voltage, and then in the troubleshooting menu, perform the wastegate adaptation.