Your Fitbit Charge 6 screen is completely black, but the green sensor light on the back keeps blinking. The good news: the green light means the device is still powered and the optical heart rate ...

Restart > clean connections > use a different charger > replace the cable > bring the phone closer. Check Bluetooth connection > disconnect other Bluetooth devices > restart Fitbit app > check for ...

Add Yahoo as a preferred source to see more of our stories on Google. Lifewire / Jason Schneider Fitbit smartwatches and trackers are dependable, but sometimes run into issues powering up. If you're ...

Fitbit smartwatches and trackers are dependable, but sometimes run into issues powering up. If you're wondering why your Fitbit won't turn on, try these troubleshooting tips to get your wearable up ...