KC868-M16v2 configure yaml for ESPhome

[sanketgroup]

I clicked on "Prepare for first use" under Home Assistant ESPHome

It completed 100%, but cannot connect to wifi since this does not have antenna.

I plugged in CAT6, but then I do not know what to do next as nothing happens after connecting CAT6.

Do I have to put those 3 files in Home Assistant folder before clicking  "Prepare for first use"?