Forerunner 165 display disappeared

My FR165M display suddenly disappeared. It was fixed by 'forcing' it to sync and update in the past. But for some reason it's not working now. The phone still detects the device.

It's completely annoying that it keeps popping up, three times now. Last time I went in for a warranty claim, they (rep) said it got fixed after simply connecting it to Garmin Express and allowed it to sync. I'm doing it again and it's not working. 

  • Video of the attempt to sync (supposedly to fix the problem):

  • Did you manage to solve it. A reset might work? Hold the upper left button in for 15+ seconds.

  • Tried that, didn’t work. They sent me a replacement unit since it’s still within warranty.