@PoloNet No, you do not need to. Just follow document I gave you link to.

@retired_user I think you should just try. The whole point of that utility is to update M9 Plus V2 with firmware 1.2 to newer firmware.

@PoloNet You can do that after switching Deco mesh to run in Access Point mode. See Switching a Deco to Access Point (AP) Mode and also General questions about Ethernet Backhaul feature on your Deco

Jorge67 wrote how do I install deco directly as an access point mode?. It is not possible to configure it as an AP from the app. @Jorge67 Switching a Deco to Access Point (AP) Mode

@Stone1234 There was conversation on that topic, but for Deco M9 Plus and M5. While not same model, it is of same Deco family and most likely the answer for M4 is the same:...

@Premous It is a good plan, but some of the Deco mesh features require all Deco units support them. If X10s do not support one of the features of that kind, it'll be disabled in Deco app and Deco...