My garmin 5S has a blue tringle since yesterday. What can i do to solve this situation?

Hello carlos correia 1974

I am sorry to hear the watch is not working. For this, I would recommend trying a full factory reset, with these steps: 

1. Ensure the watch is powered off.
   • You may need to hold LIGHTfor up to 30 seconds to turn the watch off.
2. Press and hold BACK and START/STOP.
3. Press LIGHT to power the watch on while holding these two buttons.
4. After the first beep release START/STOP.
5. After the second beep release the remaining button.

Unfortunately support is no longer available for the Fenix 5s, through the Forums. If you are having trouble with the watch, you can look to Support topic on the Garmin website here: https://support.garmin.com/en-US/?productID=552237&tab=topicsS

You can also reach out to Garmin Product Support.