How to fix Fitbit Flex 2 that won’t sync

Your Fitbit Flex 2 health trackers work in a very straightforward manner and it has a very simple system that would work perfectly with other devices that can properly be paired with it. However, there are times when syncing issues may occur; either it fails to sync properly or data transmitted between the tracker and phone isn’t accurate.

In this post, I will walk you through in troubleshooting your Fitbit Flex 2 that would no longer sync. So, if you’re one of the users of this tracker and are currently having similar issues, continue reading as this post may be able to help you one way or another.

For those who are looking for a solution to a different problem, make sure to visit our Fitbit Flex 2 troubleshooting page for we have already fixed some of the most common issues with this device. Find issues that are similar with yours and feel free to use our solutions. If you still need our help, you may contact us by filling up our questionnaire and hitting submit.

Going back to our troubleshooting, here are the things you need to do if your Fitbit Flex 2 won’t sync properly…

Restart your Flex 2 first as the system might just need refreshing. That’s often the case with most of the issues users have reported. In fact, majority of the cases that were reported online have been fixed by a simple restart. Here’s how you restart your Flex 2:

  1. Plug the charging cable into the USB port on your computer or a UL-certified USB wall charger.
  2. Remove the pebble from the wristband and press it into the compartment on the charging cable. The pins on the charging cable must align with the corresponding pins on the back of the pebble to lock securely in place. You’ll know the connection is secure when the pebble vibrates and you see the indicator lights blinking.
  3. Find the button on the charging cable below the tracker compartment.
  4. Press it three times within five seconds. The tracker vibrates each time you press the button. A few seconds after the third press, all the lights will flash simultaneously. This means the pebble has restarted. If you miss the light flash but notice the pebble has resumed charging, that too is confirmation that the restart was successful.
  5. Remove the pebble from the charging cable and insert it back into the wristband.

Refresh connection between phone and your tracker. To do this, reboot your phone first and once it becomes active, disable and re-enable Bluetooth in your Flex 2. Go to Settings > Bluetooth and turn Bluetooth off and back on. Allow a minute or two for the device to reconnect and after that, try to see if the problem still occurs or not.

Force close Fitbit app and open it again. After making sure that the connection is stable between your devices and the problem still happens, the next thing you must do is to refresh the app on your phone. So, force close the Fitbit app on your smartphone and then open it again. If the problem still happens, then uninstall the Fitbit app and then reinstall it. That should fix the problem. If not, call support or bring your tracker back to the store or shop.

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