I had a Deco S4 network that I was looking to add some Deco S7 devices onto as part of an upgrade. I used the Deco app to try and replace the main device and it gave me an error at the end of the process. However then my Main Deco S4 device was flashing RED and would not reset no matter what I tried. 

I then proceeded to setup a new network with the S7 devices and all went well and all three are working as expected. 

I then tried to add my S4 devices to the network BUT upon power up they were flashing RED. So i did a rest using the rest button and now all of them are constantly flashing GREEN and no matter what I do I cannot get then to reset and flash BLUE.

Please advise on how this can be resolved as I have tried all reset methods using the button.

Regards.

Desmond.