After rebooting the watch, it shows the blue triangle, then immediately shows the green start button.
Note that it does not show the entire garmin reboot animation and such,
also does not show the home page of the watch.
Watch blinks heart rate after a few times, then shows the PAUSE icon.
Pressing the icon doesn't do anything.
Pressing B button doesn't respond.
Pressing A button doesn't respond.
Pressing A button for a few seconds displays the shortcuts, then pressing B returns to the PAUSE icon.
As of now, watch is at latest software version.