Garmin has shared new ways to fix its smartwatches that are stuck on the “ blue triangle of death ,” a boot-up error that’s been stopping owners from using their watches. The steps could get more watches working again — but some models will lose data in the process.

If your Garmin watch is showing a blue triangle, you’re not alone—users of Forerunner, Fenix, and Epix watches have been reporting this issue since January 28, and Garmin is looking into it. There’s now an official fix.

If you own a Garmin GPS watch, you may want to power it down for a while. Users on Reddit and Garmin’s forums (via The Verge) report that a botched software update is leaving the wearables in a “blue triangle” boot loop,