what's up with the LED colors?

[wi_badger]

Just saw my phone enter that state; heard the click sound that I associate with plugging/unplugging the charger ... or maybe it was a double click? when I looked at the phone the blue LED was on, with a quick blink off every 1.5 - 2 sec ... had a notification of updates available.     Told it "later" and the LED went off.

I will use apt to do the upgrade, I seem to recall seeing a thread about someone having a problem from using the update button on the notification.