My Lily sport edition watch (version 1) was fully functional for the first 2.5 years I had it before it abruptly displayed a triangle and stopped working. I tried recommended troubleshooting steps, but nothing seemed to get it past the triangle... UNTIL I connected it to Garmin Express on a PC. Garmin Express recognizes the watch, and after it fully charged, it then briefly displayed normal screens while connected to the PC. However, it reverts to the triangle within a minute or so when it's disconnected from the PC (and sometimes while it's connected). It is running software version 12.21.
Before trying Garmin Connect, I was advised by customer support to exchange it after paying a fee (currently $99).
Now that it's intermittently functional, is there any further troubleshooting I can do without exchanging it?