Problem:
One of our customers reported that his Xhorse vvdi key tool max does not have the Proton car brand menu under remote function. But he saw another device that had the Proton option.
Here is the clue.
That is correct, the global version of the Xhorse key tool will not show proton.
Proton is tied to asian region database and cannot be added manually to global firmware.
Only way is using asian region device or different firmware not simple download.