Charge 3 won't pair to my Samsung Galaxy S6

[hanadiaa]

On August 12, my Fitbit charge 3 stopped syncing to my phone. I rebooted the device and cleared user data. I also reset network settings on my phone and tried pairing it again but it didn't work out. I downloaded the new version of the app, and I cleared the device from my account, but when I tried to set it up again, it wouldn't connect to my phone. During these 3 days of trying to fix the problem, the device randomly disappears from the available Bluetooth devices, and then reappears again, but it won't pair. I tried pairing it with my laptop (Windows 10), and another phone (Huawei Nova 3i), and the same problem persisted. I've been using it since June 2019. I need to fix this ASAP, because I can't work out unless I'm able to monitor my heart rate. 

Moderator edit: Subject for clarity 

[RicardoFitbit]

Hello @hanadiaa welcome to the Community Forums! It's a pleasure to help you today with your Charge 3.

First, I'd like to appreciate your effort and patience troubleshooting this situation prior to posting. 

If you haven't already done so, I recommend you to check all the information that's specified on: How do I set up my Fitbit device? to check if all the requirements are correctly configured to setup your device. Then, you can move forward to the troubleshooting steps that are specified on: Why can't I set up my Fitbit device? and let me know how it goes.

I'll be around if you need anything else, please keep me posted.

[Pbaillie]

I've had my Charge 3 for over a year and I have run into the same issue. It started about a montg ago. It will not pair with my Samsung Galaxy S6. Sometimes it shows as an available device, but will not pair

This is a relatively recent issue. I've removed tge device, redownliaded tge app. 

[Jordynmina]

Having the exact same issue too. Only suddenly will it be visible on bluetooth pairing options, however will not pair thus sync.