Permanantly disable Bluetooth and NFC modules

[CianMartin]

We are developing a product that will have a wireless and wired option, based on the NRF52840

The strategy is to release the wired option first, followed by the wireless option six months later, after FCC certification. 

We need to permanently disable the wireless capabilities of the device to avoid wireless certification on the initial launch. Is there a way to do this in software or hardware? 
By permanent, I mean there is no way that a software update could enable wireless functionality. 

Thanks! 

[Vidar Berg]

Hello,

If you use one of our DFU solutions that require signature validation, only the holder of the private key will be able to sign and distribute updates for these devices. As a result, RADIO or NFC functionality will not be enabled unless you distribute a firmware update that explicitly enables it. Will that work?

Best regards,

Vidar