I have a 1st gen echo (the taller black one with no volume buttons, just the dial) and recently it started boot looping. It does the blue rings for a bit, then says "HELLO" at full volume.
Once it starts up, I can ask it to play music.. and it works fine. It will play music all night long (until amazon decides to stop, maybe 2 hours?) - and as soon as it's idle, or after a short time, it will start boot looping and saying HELLO (at full volume) in the middle of the night.
So.. I pressed and held the button with a bobby pin for 2 minutes or so... got it to reset. It became unregistered from my account and I had to re-register it.. and the problem persisted.
What can I do!?