I just updated my Scion unit last week and you have to register your product to get the firmware updates.
That being said, I logged in and went to the firmware support page and the option for scope firmware is not even listed. Evidently the scopes fall under a new program with Teledyne FLIR and they will not release updates to the public.
I agree with Kirsch, "if it ain't broke don't fix it" applies.
