Users report their Garmin devices becoming unusable and the devices getting stuck in a boot loop. This not only seems to impact Forerunner devices. I experienced the same on my Garmin Forerunner 255 when I went running this morning.

There's also Forbes article now but it refers to the Reddit post: https://www.forbes.com/sites/andrewwilliams/2025/01/28/garmi...

Thank goodness it is a bug. For a second, I thought I was on the new squid game.

I bet it’s the positional data for the satellites being out of date.