RBS750 Boot Loop - flashes white

Hey FURRYe38  .  Thanks again for all your 'guru' work in this community.

My device will not get to a 'controllable' stage.  I have plugged it into the RBR and my PC NIC.
It does  not 'boot' long enough to be viable.  It then cycles power and starts again.

It powers up with 12 white flashes over 25 seconds (with long gaps)

Then goes to the fade-in fade-out white light til 1minute 20 seconds.
... then cycles and goes back to the start.

This device is not bootable.

I have tried holding the reset button in longer... but like above.  It will not reset when green.  But when the unit goes past that cycle stage at around 1 min 20secs it will go amber then flash.   When I release after flashing the light goes blank, then goes green within 2 seconds.

I've tried multiple ideas and would like to get this swapped.
It has been turned off for more than 3 days as well.

NOTE:
I bought this in July year... and has worked fine.
I have the RBS on a cable backhaul to the RBR.
It's set and forget.  I havent needed to do anything else.
It's only when my kids complained about wifi issues that I looked at the RBS.  It was flashing like it is now.

How do I get the hardware team to fault this?
- bevvobevvy