Charge 3 not syncing with iPhone XS.

[AnIrishDiva85]

For the last two days, my Fitbit  Charge 3 won't sync to my iPhone XS. My mom has the same problem and she has an iPhone 6. Both trackers have been reset and the software on both is current. Is this a bug with the latest app update? 

Moderator Edit: Clarified Subject.

[Bhansen99]

Having the exact same issue on my iPhone X. I’ve tried all the reset, power on, disconnect etc and it still will not sync. Also tried with my iPad and nothing. iPhone was update recently, but not the iPad so I don’t think it has anything to do with the recent iOS update. 

[MarcoGFitbit]

Hello @AnIrishDiva85 thanks for joining the Fitbit Community, it's great to have you on board. It's nice to see you too @Bhansen99 I hope you're doing well. 

I appreciate your participation in the Forums and for sharing your experience with us. I would also like to thank you for letting us know the troubleshooting steps you've tried so far. At this moment, I would like to ask you to check the following:

• Make sure the latest version of the Fitbit app is installed on your phone.
• The software on your mobile device is up to date. To check, tap Settings > General > Software Update.
• Make sure there are no other Bluetooth devices around as they might interfere with the syncing process
• Check that your Fitbit device's battery isn't critically low.

If your device still won't sync, try these steps:

1. Force quit the Fitbit app. 
2. Go to Settings > Bluetooth and turn Bluetooth off and back on.
3. Open the Fitbit app.
4. If your Fitbit device didn't sync, restart your phone.
5. Open the Fitbit app.
6. If your Fitbit device didn't sync, restart it. 
7. If your Fitbit device won't sync after the restart, log in to your Fitbit account on a different phone, tablet, or computer and try to sync.
8. If your Fitbit device still doesn’t sync, remove all other Fitbit devices from your account and from the list of connected Bluetooth devices on your mobile device and try to sync.

Give it a try and keep me posted in case you need anything else. 

[AnIrishDiva85]

Did all of that. Still no change. 

[Cocobanner]

Have error 403 nothing is working 

[MarcoGFitbit]

Hello @Cocobanner thanks for joining the Fitbit Community. It's nice to see you too @AnIrishDiva85, thanks for taking the time to reply. 🙂

@Cocobanner thanks for having tried the troubleshooting steps provided. At this moment, what some of our members have tried successfully when they get an error 403 is uninstalling and reinstalling the app. Note that your device can store up to 7 days of detailed information so, it's possible that if you haven't synced in a long time, some information might get lost. 

@AnIrishDiva85 at this moment, after tying the steps on my previous post, let's set up your Charge 3 as a new device to reset the connection between the phone and the device. Note that the information stored in your account has been synced to our servers as well, so you won't lose your historical data. 

Now to set up your Charge 3 as a new device:

1. Go to the Bluetooth settings on your phone and check if your tracker is on the list of paired devices. If it is, tap on it and select Forget this Device.
2. Open the Fitbit app and tap on the Account symbol at the top right corner of the screen, then tap on "Set up a New Device"
3. Choose your tracker and follow the onscreen instructions to continue
4. When the app asks you to replace your current tracker, please replace it and continue with the process.
5. When a pop-up appears asking you to Pair your tracker to your device, tap on Pair and continue.

Give these steps a try and let us know how it goes!