Charge 3 won't pair or sync with iPhone

[MomC2011]

My Fitbit will not pair with my iPhone or synce I have done all the steps and the only time it will recognize is when it’s connected to charger pls help

Moderator edit: updated subject for clarity.

[AndreaFitbit]

Welcome to the Fitbit Community @MomC2011. I'll be happy to assist with your Charge 3 pair inquiry. Thanks for letting us know that you have done all the steps. 

Could you please confirm that you have already followed help article: Why can't I set up my Fitbit device?

I'll be waiting for your reply. 

[MomC2011]

Yes I have done it all

[AndreaFitbit]

Thanks for getting back to us and for following advised troubleshooting steps @MomC2011. I´ll be glad to continue assisting you.

Could you please try setting up your tracker with a different device or a computer?

Let me know how it goes.