OBDSATR company released new OBDSTAR PCF79XX key renew adapter to unlock/renew key for Audi 5th generation immo, BMW, VW, Volvo, Chrysler, Renault, GM, Kia, Hyundai etc. Here is a demo guide on unlocking Audi PCF7945 remote key with OBDSTAR X300 DP (Key Master DP) and key renew adapter.
Guide:
Connect X300 DP with VCI, key renew adapter etc as picture picture
Select Diag Program
Select Other Function-> Renew Key->Renew Key V30.01
Select Audi->5 generation
Select Board 233.453.111-06
Select remote frequency: 315MHz 8T0959754C
Please refer to the following diagram for the correct connecting cables/lines
Chip Type: PCF7945
Connect the host to the OBDSTAR PCF79XX adapter and supply the 12V power to the renew adapter
Writing data, please wait
Data brushing success
Unlock Audi PCF79XX remote success.