[Solved] Why is my FEIT dimmer only accepting N firmware? And why is the configuration hotspot not appearing?

I'm trying to flash a new Feit dimmer that I just purchased. I've been reading and following several tutorials and such.
I see mentioned in several places that the chip is a T chip. However, when I try to backup the firmware with the BK Flasher application, it gets a CRC error.
Following the suggestions, I tried switching to the N firmware, and the firmware successfully passes the CRC test. This is strange!! Does this make any sense to anyone?

So I flashed the N firmware to the board. Now when I reboot the board, the blue light on the board blinks then goes steady, but no wifi network appears.

Can anyone suggest what to do next to troubleshoot?

Added after 31 [minutes]:

So... after lots more googling I attached the TTY adapter to RX2/TX2 and opened PuTTY to the right com port with 115200 baud and watched lots of messages.
I saw it create the hotspot, which I was able to connect to. I suspect I wasn't waiting long enough.

However I'm still confused about the T/N thing, anyone have any thoughts?

You probably need to connect to the mains for the ap to show up.

Newer hardware revision use N chip, T is the older one.
Any picture of chip inside? Rarely it might be mislabelled, i think someone posted here cb2s chip on a plug, but inside was T chip

Try both versions (N vs T) and use whichever works. Manufacturers switch chips often