Persistent "unknown error" while syncing

[tf21211]

I've read other posts on this topic, have done the drill(s), and am increasingly disillusioned. My guess is that things work well until they don't, at which point it's a matter of how determined I am to keep clicking on the "try again" option. It appears that the highest probability of success comes when the unit is tailgating the dongle AND the unit is plugged in via USB with a full charge, but even when that is the case there is no assurance the sync will complete. A total PITA. About time to quit caring and to get my wrist tanned back with the rest of my arm. I know, I know, uninstall, reinstall, do a cold boot, turn the unit on and off a few times, re-confirm the firmware is up to date, and assume the position, and still nada. Seems to me something has hinked up through use of the device for a full two months.

[SolangeE]

 Hello, @tf21211! Welcome aboard. I'm sorry to hear that you are not able to sync and you are getting this error. Thank you for letting me know all the troubleshooting steps you've tried. Just a question, have you tried to sync using another computer or a mobile device?

Let me know! 

[tf21211]

I don't have a mobile device. I have attempted to sync with another computer (Windows based; my primary machine is an iMac) and I get the same (lack of) results.

[AlvaroFitbit]

@tf21211 If you have tried all possible solutions then I suggest you contact our Support Team for further assistance. They are able to review your tracker's information so they should be able to determine what the issue may be.

Let me know how it goes!