I had to try for hours to get it working, basically unplug, plug, wait
for the three restart cycles and then keep and hold the reset trying to
get blinking yellow on hold for 10 seconds and then release to start the
reset process, again just try many...
I was able to fix it by plugging in the router, wait for three minutes
or so but ot took me hours. Honestly I decided to try the Amazon Eero 6
and its way faster and more stable.
Update: After working fine for a couple days it went offline at night
and its bricked again on solid white and no activity, I gave up, I will
just move another more reliable router brand.
Update: I was able to unbrick the Nest Router (AC2200) by power cycling
multiple times waiting the white light to go on and off four times until
seeing a weak solid white and then hold the factory reset button, had to
do it four times for the factory...
Few days ago I power cycled my nest router and it got bricked, on boot
it would just stay solid white and factory reset instructions don't work
at all. Tried for hours and got flashing yellow but couldn't make it to
solid yello (reset in progress). H...