The device should not be capable of operating at some frequencies, that can be done with hardware restrictions. Closing firmware is not really a solution, since it can be decompiled and cracked.
>Closing firmware is not really a solution, since it can be decompiled and cracked.
Presumably they will require cryptographic signatures on the firmware. This is also not infallible, but it is substantially more inconvenient (and in many cases it might as well be unbreakable) for people who like free software.
