Close the computer.
Connect the icom a2 emulator to the BMW car.
NOT NOT connect icom mux to the computer via the cable until the mux lights on.
Start the computer.
Enter ICOM A2 interface again.
DO NOT click OK after entering the interface.
Wait for another one or two minutes, and the software will go to ISTA automatically.
If ISTA/P is forced to exit quickly when entering, it means that ISTA/D has already been opened, please restart the system and enter ista/p again.
NOTE: do not operate quickly during the whole process