Flex 2 fbbluetootherrordomain error 18

[Mochap2]

I bought my Flex2 about 2 weeks ago and have searched the forums for help.  I've tried restarting the flex, rebooting my phone (iphone 5s running iOS 10.3.3), deleting and re-downloading the app,  "trying again" numerous times from the error page,  and I still get error 18.  Very frustrating!

The flex does not show up on my phone under bluetooth devices, and has not worked at all since I bought is.

Please help!  Thanks!

[Route66-Loyal]

Same here just got it sunday and exact same thing. 

[Route66-Loyal]

All working now after app update on 9/11

[Mochap2]

Yay!  Thanks so much for replying--I just tried again (having gotten pretty despairing of it ever working) and it worked for me, too!  I restarted the Fitbit, deleted and re-downloaded the app, and restarted my phone.  It took over an hour to update, but it finally did it!  Yay!  To our health!

[Route66-Loyal]

I was just getting ready to ship it back to walmart when app update came out, real happy it's working now.