[mattydr67]

What about if you have the interface plugged to the USB and to the car
Then start the Consult III software
And add the serial of your tool.
Try like this.

No there is no chance to have v9.21 like the 9.18
Many peaple asked about this long ago but no chance. I heared that was a v9.21 +NATS+GT realese not for free but I haven't see it anymore.
So I supposed that was just a rumor.
Well peaple tried to make a "salad" between this two versions to combine them to make the NATS+GT to works in v9.21 too but nothing worked ever.
Good luck