@AsadulHuq 

Hi, can I have some pictures that'' Linked Deco Unavailable for current firmware''?

What are the model number as well as the operating system of the Samsung phones?

Please try to turn off the Mesh technology on the  Samsung phones to have a look;

Thank you and wait for your reply.

@TP-Link I get the same error message as everyone else in this thread on one of 3 P9s when running Deco on an Iphone XR. Interestingly, the third P9 gets its signal not from the equidistant cabled P9, but from this one that uses powerline.

@Dagster I also see same message. 

@Dagster I have the same issue on a Samsung QLED TV. 

@Irishguy65 

Hi, For the Samsung QLED TV, Did you mean this:

Here are some suggestions for your reference:

1.turn off the Mesh Technology on the TV;

2.turn off the fast roaming on the Deco APP;