Charge 3 stopped syncing with my phone

[Daemetos]

So I bought a FitBit Charge 3, initially had some issues getting it sync'd to my phone (Samsung S10e) but after a few minutes it connected and everything was working fine.  After 1 week the battery started getting low, so I charged it to full.  After 2 days it stopped syncing; I finally got it to sync back up and it worked fine for maybe 36 hours; now it refuses to sync.  The app will find the Charge 3, but refuses to connect.

I have ensured my phone app is updated.
I have rebooted the Charge 3.
I have rebooted my phone.

I have wiped all user data from the Charge 3.
I unpaired the Charge 3 from my phone. 

Now the app will "found your device" but won't connect.

Moderator edit: updated subject for clarity

[JuanJoFitbit]

Hi @Daemetos, welcome to our Fitbit Community. I'm sorry to hear that about the syncing issues that your Charge 3 has experienced. I totally understand how you feel about this and I appreciate the time spent trying to get this issue resolved before contacting our forums.

I'd like you to try the troubleshooting steps that are listed in this help article. This article contains steps that you already tried but you can skip them and proceed with the rest.

Finally, monitor your tracker during the next 24 hours and see if the issue gets fixed.

Keep me posted on the outcome.

[Daemetos]

Well, first thing this morning, it reconnected perfectly.  after about an hour I opened the app and attempted to refresh/sync and I constantly get an error message "Couldn't sync your Charge 3".

So it did manage to pair with my phone, but it still refuses to sync with the app.  If I tap on the "Fix It" button it just sends me to the link you provided above, which does not fix the problem.

Charge 3 version: 28.20001.88.11

Now, it won't even detect that the Charge 3 is even powered on.  I have the Charge 3 plugged into a power source and the FitBit App is displaying "Are you sure your Charge 3 is turned on?  Plug it into a charger for the entire setup process."

[AlvaroFitbit]

@Daemetos thank you for your reply and for following our previous instructions.

Since the issue persists I have created a ticket so our Support team can further assist you via email.

Let me know how it goes.

[Daemetos]

Thank you! 
I thought it may have been something with my phone, but we found my girlfriend's Charge 3 (It's been in a laundry basket for a few weeks).  I unpaired my Charge 3 from my phone, charged up her Charge 3 and paired it to my phone and have been using it since Sunday (Nov 30) with no issues.  

So, that leads me to believe there is something wrong with the Charge 3.  Also upon further examination, there are black lines across the screen near the top (1/2" or so).

[AlvaroFitbit]

@Daemetos thank you for the update and the additional information.

At this point the best thing to do is let our Support team know about this and see what options they may have for you.

Keep me posted.

[Daemetos]

The Charge 3 is 7 months past warranty, so there is nothing they can do for that.  But they did send me a 35% discount code to use towards a new device.

[AlvaroFitbit]

@Daemetos thank you for the update.

Sorry to hear that your tracker is outside the warranty period. Hopefully you can take advantage of the discount offered by Support. Regardless of the device you may have I do hope that you can keep an active lifestyle and reach your fitness goals.

I'll be around.