It might have somehow switched from auto to on.
Flashing green lights on fitbit alta hr.
The fitbit app uses your data to help you set tailored goals for steps exercise and more.
I got my new fitbit on tuesday and the hr was working and flashing green until wednesday lunchtime and now at stopped but everything else is still.
If this isn t the case you can also try changing the setting to off sync your tracker then change it back to auto additionally to restarting it.
All day activity tracking sleep insights reminders to move interchangeable accessories more.
The green light on the back of the device keeps flickering i would like the option to turn this off its a bit distracting knowing it is there.
If it is still saying auto turn it off and sync your alta hr then turn it to auto and sync again and see if that gets it working properly.
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Like usaf larry said the green lights are part of the heart rate sensor and will be on all the time if you have the on setting for the hr.
Clip your alta hr to the charging cable and make sure the cable is plugged into a usb port on your computer.
My alta hr is not flashing green lights.
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I bought a new fitbit inspire hr.
Alta hr auto detects workouts like running elliptical biking and more and logs them to your dashboard.
Let me know how it goes.
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Compatible for fitbit alta hr charger kingacc 1 pack 3 3ft 1m replacement usb charging cable cradle dock adapter for fitbit alta hr fitness wristband smart fitness watch not for alta 4 5 out of 5 stars 1 189.
Alvaro community moderator.
Some help suggests to turn off the heart rate monitoring.
I have been reading your help fourms and i see that the blinking green light is a issue with a few fitbit products.
Using heart rate alta hr shows your time in light deep and rem sleep to help you understand your sleep quality.
Float this topic for current user.
Go to the app account alta hr and see what the hr is set on.
Let us know how you go.