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 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,

If your Garmin watch is showing a blue triangle, you’re not alone—Garmin has acknowledged that other users are experiencing this, and has published instructions for fixing it. The issue affects several models of watch,