Fitbit Charge 6 – Sync/Pairing Broken Since June 8, 2025 (Device Unusable, Support Unresponsive)

[ShellarI]

Summary

Since June 8, 2025, my Fitbit Charge 6 has been unable to sync properly or pair completely. I’ve followed every step in the official troubleshooting guide multiple times, tested it on multiple phones with different Android versions (9a, 7a with Android 16, 5a with Android 14), performed full resets, reinstalled the app, cleared Bluetooth and app cache, and more.

The only partial result: step count and sometimes heart rate syncs occasionally, but pairing never completes — and the app remains stuck in a limbo state, asking to “Finish Setup”. Attempts to pair show the 4-digit code on the device, I enter it, and after a long delay it fails with an unspecified error.

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Support Timeline

On June 10, after trying everything myself, I contacted support.

I spent over an hour in live chat, repeating all the steps. Support confirmed they pulled logs from my device and escalated the case.

Since then, I’ve only received automated or irrelevant responses, such as “how to change the clock face” or “how to pin stats to the dashboard”, which completely ignore the sync/pairing issue.

Every 48 hours or so, I get a vague message like "we’re working on it", but no technical update, no confirmation the issue is reproducible, and no help on how to save the data still stored on the device.

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Why It Matters

I am currently recovering from surgery, and tracking vitals like heart rate, stress, and HRV is critical.

Fitbit warns that data not synced for 7+ days may be lost, and we are already past that point.

I paid for a premium product and service — but right now, the tracker is functionally a brick and Fitbit support seems unable or unwilling to help.

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What I Need

A clear and functional fix for the pairing/sync issue.

A way to manually extract data from the device if syncing isn’t possible.

An honest update — even if the problem is known and being worked on, say it. Don’t send copy-paste replies that pretend everything is fine.

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Moderator Edit: Clarified subject.

[DramaQueenDiva]

Sorry for what you're going through, but let me just get a few things straight, in terms of what you said need to happen:

1.) There is no manual way that I know of to extract data.

2.) Google doesn't usually give updates to what's being fixed, and since many of us here are either volunteers or fellow users, there's no way for us to investigate this for you.

3.) Apologies if you have already tried this, but have you tried power cycling the phone (turning it on and off)?

4.) Have you tried looking at your historical data to see if everything actually did sync?  It may look like a partial sync to you, and it may even be a partial sync, but even so, Fitbit does store that data.  Even if it's a partial sync, that data is still there on the day that you synced it, but it may have taken a while to show due to things like busy servers.  

5.) Finally, you said you performed "and more" steps, could you please tell us exactly every single step you tried?  There's no way for us to know what "and more" means without more details, since it's very vague.  Details matter, especially when trying to guide you to next steps.

[DramaQueenDiva]

Another question I forgot to mention too, and I regret not thinking of it sooner: you mentioned you tried to set the tracker up on multiple phones with the latest Fitbit app update (which is great by the way!), do all of the phones in question have the latest firmware updates?  I believe Android is on Version 16 with the latest firmware update being on June 5th, 2025.

[ShellarI]

Thank you, Kristen.

Yes, all phones involved — running Android 16 and Android 14 — are fully updated with the latest OS versions and the latest Fitbit app from Google Play. I’ve reset network settings (which erased all saved Wi-Fi passwords), cleared Bluetooth data, and performed all pairing steps repeatedly — including on a device that was factory-reset and had never been paired with this tracker before.

The system sometimes sees the tracker as available nearby, but the app fails to complete pairing after entering the 4-digit code — it spins for minutes, then throws an unlabeled error.

After that, the tracker shows as “Connected” in the app, but syncing fails and the app keeps prompting to link the device.

Please note that I already listed these steps and confirmed multiple times that I had done them — it’s disheartening to be told again to “update the app” as if that hadn’t been clearly communicated.

Also, the issue seems to have started within hours of the Android 16 update — while not immediate, the timing strongly suggests a connection.

At this point, the only thing that still syncs occasionally is steps (and sometimes heart rate) — everything else fails, including pairing and full sync. I need a concrete plan to either recover my data or sync it manually via desktop if necessary. Otherwise, I risk losing a full week of post-op recovery data.

Thanks for your attention — but please escalate this beyond automated advice.

I’ve already spent more time troubleshooting than the tracker is worth, and loyalty has its limits.

[Rich_Laue]

FYI: Detail data, that is hourly/minute data is only saved for 7 days. Daily totals or saved for 23 more days. You have not done a factory reset on the Charge 6. 

I'm confused! You say you where upgraded to Recovering Runner. If so, the app should have data for at least day. The badge is usually rewarded with the first sync after earning it

You say that you have been using 2 phones. Has either of them show the Charge 6 under BT? When trying one phone, if the other phone is within BT range, turn it's BT off. 

Ultimate, Steps that usually work for me. 

• I assume your Charge 6 still shows as connected to your fitbit account. 
• Restart tracker 
• Remove tracker from both phones BT
• Update the fitbit app
• Through phone settings stop app
• Clear data/cache (cache should clear when clearing data)
• Swipe all apps out of memory. 
• Restart phone (this will clear all phone and other app cache
• I have had to remove the Fitbit app from the phone 
• If your tracker is still connected to the Fitbit account. 
• Open the Fitbit app and you should be prompted to complete setup to the current phone. 

[FilthMaxim]

I have exactly the same problem, only with a fitbit charge 4. I read on the internet that this is now widespread, but fitbit and google do not want to admit guilt

[ShellarI]

Hello,

I’ve already performed all recommended steps, including: – Updating the app to version 4.46 (latest)

– Restarting the Charge 6

– Removing it from Bluetooth on all phones

– Clearing app cache/data

– Reinstalling the app

– Rebooting the phone

I’ve also made sure that only one phone is involved at a time:

– Fitbit Charge 6 was tested on three different phones

– On each attempt, other phones had Bluetooth turned off and the Fitbit app fully uninstalled

– Still, syncing and pairing failed consistently on all of them

Since the Fitbit web dashboard has been discontinued, and the mobile app is currently the only way to manage the device, it is unacceptable that the app has remained broken for weeks — especially for a new device.

Please escalate this again. I kindly request either:

– a direct fix or workaround

– or clear confirmation that the issue is being worked on, with an estimated timeline

Also, please do not close this case automatically — it is still unresolved, and closing it repeatedly without a solution only adds to the frustration.

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Update:

Sleep data has finally appeared in the app — however, some days are missing, likely due to the long delay in fixing the issue.

Unfortunately, it’s unclear what triggered the sync — one hour earlier the sleep data wasn't there.

The sync behavior remains inconsistent and broken:

:white_heavy_check_mark:Steps, Active Zone Minutes, and Calories burned sync occasionally.

:warning:Resting heart rate syncs very rarely.

:cross_mark:Heart rate, Stress management score, Health metrics, and Daily readiness score are not syncing at all.

:cross_mark:The app still fails to pair with the tracker (error after entering the 4-digit code).

I've already shared screenshots with support, but there's no resolution so far.

[Pickle25]

What is the process for contacting support?

[ShellarI]

You can contact Fitbit support via this official page:

https://support.google.com/fitbit/gethelp

Choose your issue and request a chat or email support.

Be sure to mention if you're a Premium user — it helps prioritize the case.

I’ve shared screenshots and full details, but unfortunately, it’s been several days with no resolution yet. Hopefully more reports will push them to escalate this faster.

[Pickle25]

Thank you so much.

Hope you get yours sorted and hope they push out a fix since it seems a common issue.

[ShellarI]

Thanks — same for me.

Still no resolution. I've already lost weeks of health data during post-surgery recovery.

Some data syncs sporadically (steps, active zone minutes, sometimes resting HR), but core metrics like heart rate, stress score, health metrics, and readiness score are still broken.

Sleep phases have started appearing again, but without any sleep score — and only at random times (once right after waking up, another time only in the afternoon). No reliable sync trigger.

Really hoping they push out a proper fix soon — this issue is widespread and persistent.

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Update: According to support, my case has been escalated to a higher department. Still no resolution or timeline. Sleep phases have started syncing (no sleep score), but unclear what triggered the partial sync. Most health metrics remain broken.

[FilthMaxim]

I was told that since there is a guarantee, someone will contact me by mail) I have been waiting for a message since Thursday, as I understand it, regarding replacement and delivery

support also created a case

[ShellarI]

Thanks for sharing. Seems we're in the same situation — case created, escalated, still no fix or timeline. I'm not sure if replacement is being considered in my case yet. Let's keep each other posted if something changes.

[Pickle25]

Hi, 

Mine is working successfully now. Someone from the support team got back to me the same day saying that it was because I had my phone registered on the app as a device as well as my watch. 

I had been unable to sync and unable to pair.

I managed to pair from within the app as opposed to the Bluetooth settings menu on my phone.

Finally with a paired watch and that being the only device; I was able to sync.

That was my situation, it might help someone else who comes to this thread.

[ShellarI]

Glad to hear it’s working for you now! Sounds like it was a local configuration issue — thanks for sharing the details.

Unfortunately, this doesn’t seem to apply in our case, where sync issues persist even after clean setup and pairing, and are likely related to the June 8 service-side problems. Still waiting for a proper fix or guidance from support.

[ShaunDavis]

Seem to behaving same problem since last update can no longer sync phone to the watch.

Now when tap on fitbit app won't recognise email or anything YET it sends weekly email and some details...WTF

[ShellarI]

Update (July 2):

After 24 days of back-and-forth, Fitbit support officially admitted they have no other troubleshooting steps to offer. Their only suggestion now is a factory reset, which will erase all device data.

Worth noting: I could have done that on day one — if they had been transparent.

Instead, they kept me going in circles with scripted steps for over 3 weeks, resulting in the loss of all recovery data from June 9 to July 2, which was especially critical for me after surgery. I’m a Premium subscriber — the service provided was unacceptable.

Looks like support just simulated activity, and only now escalated the issue, which got dismissed with “reset it.”

That’s not support — that’s damage control, at my expense.

[FilthMaxim]

I think the same as my problem, resetting won't help you. By the way, it's already the 5th working day since I've been waiting for a response to my case by email

[IcemaninMA]

Yep, the latest software update broke it.  I had to get a Charge 6 because my perfectly good Charge 5 was broken by a software update (this happened to every Charge 5 owner).  Google is hellbent on destroying their Fitbit product.

[Zenari]

What software update do you think might be the problem? I'm on App version 4.46. 

Fitbit charge 6 is still working but no data on the app since June 16th. Partial sync on June 25th. I've been through all of the steps many times and now having unpaired my device from my phone i can't get it to pair again. Very frustrating.