Hi all, I hope you can help.

I have a network of Deco s7's that I have on the latest firmware with an IoT network now set up.

I've recently purchased an additional s7 to expand the network - but when I try to add via the app, it "finds" the new deco but fails to add it to the network.  I've done a bit of research and I think its because the firmware needs to be updated to add the IoT feature - but I can't add it to the network to enable the firmware update.  

Is there a way to force through an update via a hardwired connection to a PC? or any other way to update the firmware that you are aware of?

Thanks for your help