Garmin's status page says: "We are researching reports of devices displaying a blue triangle when starting a GPS activity. Holding the power button until the unit powers off, then turning it back ...

Garmin users are reporting that their watches crash when using apps that require GPS access and then get stuck in a reboot loop, showing a blue triangle logo. The company updated its status page ...

If you own a Garmin GPS watch, you may want to power it down ... report that a botched software update is leaving the wearables in a “blue triangle” boot loop, putting them out of commission ...