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Problem 400

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I had an old Fitbit hr and it broke so the. I got a new one and I'm trying to set up but then a message pops up says 400. I don't know what to do?
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@suzanne970 wrote:

My fitbit hr has just stopped syncing, ive rebooted, made sure updated app everything just will not sync since 18th feb


My Charge HR stopped syncing a couple days ago. Have tried many things. So far no luck. Going to try rebooting/restarting everything (phone & fitbit) one more time.


--- Two wrongs don't make a right, but three lefts do.
Flex (Christmas 2014), ChargeHR (Christmas 2015). Wife is using the Flex now! Nope, that Flex has died. Alta ordered 12/15/16 as Flex replacement. So far, she likes it. Nope, alta battery only lasts 2 days, started at 7. Support contacted 12/7/17. Hope warranty covers it.
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Mine is now sync'ing again. I did have to update my app...

 

Which may have been it...

 

But I also read another post of a Charge HR owner having problems, who said theirs mysteriously started to sync again.

 

Hopefully your will too.

--- Two wrongs don't make a right, but three lefts do.
Flex (Christmas 2014), ChargeHR (Christmas 2015). Wife is using the Flex now! Nope, that Flex has died. Alta ordered 12/15/16 as Flex replacement. So far, she likes it. Nope, alta battery only lasts 2 days, started at 7. Support contacted 12/7/17. Hope warranty covers it.
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Cannot get new ALTA HR to replace Alta - Alta HR says www.fitbit.com/setup 

Nothing I do gets me past this.  

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