https://apps.fcc.gov/kdb/GetAttachment.html?id=zXtrctoj6zH7oNEOO6De6g%3D%3D&desc=594280%20D02%20U-NII%20Device%20Security%20v01r03&tracking_number=39498 https:/

https://apps.fcc.gov/kdb/GetAttachment.html?id=zXtrctoj6zH7oNEOO6De6g%3D%3D&desc=594280%20D02%20U-NII%20Device%20Security%20v01r03&tracking_number=39498 https://apps.fcc.gov/kdb/GetAttachment.html?id=zXtrctoj6zH7o... Manufacturers of radios have to prevent the ability to behave in a non-compliant manner. One way of accomplishing that is preventing the user from updating software to non-official versions. Another is to prevent the small subset of functionality to be updated by non-official versions. This isn't a new requirement and has been around since forever.