I have a problem with my watch because the screen is all black with a white line and i can't see anything. When a charge it start to blinkwith white lines on it. can someone help me please with this problem?
Sounds like a hardware issue @userGO2koQ9QK8
In other words, it's probably broken. I doubt there is still warranty on it as it's a little bit older device, but if you have any kind of protection plan, it can be an option. If not, I can confirm that the Galaxy Fit which is their current fitness band offering, is pretty decent. Might be time to upgrade (although some might not consider it an update as the Gear Fit2 Pro definitely was closed to a smartwatch).