Thanks Helio_Centra,
I might have a different version of the InfiRay APP. If I go to help&about it does not tell me the version of the APP software but goes to a User Manual listed as V2.1.1 (assume version 2xx).
If I go to the InfiRay Android App, hold down on the icon, it displays (App Info). and if I select it does display way at the bottom version 2.1.15.2306160904.133 (assume that is a CCYYMMDD date stamp so 16 Jun 2023 and likely at 9:04AM) ...
Note the V20Pro also have the very annoying issue of misalignment in MIX mode. Although you can adjust this in calibration mode the calibration is NOT saved, therefore in effect always misaligned.
Thanks for the reply and trying.