Hi all

I Have installed 2 new Deco 4 to my uncle's house. They work perfectly.
Additionally, have 2 older Deco 4 I want to add to the same network. When I connect them, the light blinks untill they get red.

A assume that the old ones have a firmware issue (both are 1.0).

I have the 2 old ones at my house, and wonder how to update the firmware with no connection.

Anyone can help me?

Thanks in advance