content: Yes, it does, the router must lock down the radio, if you can put new firmware on it that can fully access the radio then it is breaking the rules. So the only option is for the radio firmware to be separated from the OS portion of the firmware. The point the article is making is that, while this is doable most companies are going to take the easiest path and just block 3rd party firmwares, like tplink is quoted as doing.