Fitbit One not syncing or updating

[Wilsontn]

I haven’t used my Fitbit one in over a year, I charged it last night and got it to sync with my phone after an update. Today my steps won’t sync to my phone and it says there is an update available, when I try to update it, there’s an error 400 message. I have tried restarting my phone, logging out of the app, reinstalling the app, and turning off the blue tooth. How do I fix this?

Moderator Edit: Format

[SantiR]

@Wilsontn Welcome to the Fitbit forums! Thanks for taking the time to create a thread to report the situation you are experiencing with your One and the error you are getting when trying to update it. Thanks for sharing all of those details and for trying those troubleshooting steps in order to sort this out.

Please try the steps provided on this helpful article. You will see some steps you already did; but please try them once again in the order given there for best results.

Try that out and let me know how it goes!