I got this watch since 3 days.
It comes with 9.15 firmware. First configuration went smoothly. After half day watch reset itself. Uppsss...
After another half hour message pop-up there: hey there is new firmware ready to install (10.10). I thought that's great.
After rebooting it went into crash loop. Every time I hit the button it restarts. I left watch for a few minutes. Still the same. I left it for half an hour and it works... sort of. I worked for a day.
I decided to connect to Garmin Express (macOS). It synchronized, there was a few map updates. I did it. Disconnected and it happen again. Crash loop everytime I hit button.
And here it's: In my case to trigger "crash loop" I just connect it to Garmin Express and do nothing. Quit Garmin Express. Unplug watch and hit one of the button.
Here is movie.
https://www.youtube.com/watch?v=XlAaIpT4qIY
Is just me?