@Dagster I also see same message.

@Alexandre Thanks. Clean and clear answer.

@ATee Deco App needs preexisting internet access to setup Deco. Thanks.

Seems that firmware upgrade ( 1.4.3) is available for my Deco M4R (US) Ver 2 (Bangladesh region), but Deco app or web gui shows that my Deco is already upgraded with the latest version of firmware....

@Philbert A have already phone data access, that is no problem. I asked the question to be sure that I need an existing router to setup Deco! Is not this interesting? I think Deco better make an...

Thanks. But how will the deco app on my phone work without internet? Please note there is no internet yet in my phone and I need internet to login to my Deco account. Thanks again.