Charge 5 stopped tracking my heart rate

[SunsetRunner]

Yesterday my Charge 5 recorded my points as usual, but today it recorded 3 points after a vigorous workout. The device is not showing any heartrate at all, although I'm wearing it the same as always. 

Moderator Edit: Clarified subject

[Talahthas · Accepted solution]

Welcome to the Fitbit community, @SunsetRunner!

Sad to hear you're having issues with your Charge 5.
As a first approach to hopefully get things fixed, I'd suggest restarting it. Before doing so you should make sure you've synced your device to not lose any data tracked so far. Also you should verify that the charging contacts on your device are clean and the charging pins on it's charging adapter are clean as well and can move flawlessly. In doubt please have a look here:

How do I clean my Fitbit device?

Next please closely follow these instructions as timing is crucial for this procedure:

1.) Connect your Charge 5 to the charging cable which has to be connected to a reliable power source.
2.) Press the button located on the flat end of the charging cable 3 times within 8 seconds(!), holding each press for about 1 second(!).
3.) Wait around 10 seconds until the Fitbit logo appears on your device's display.

I'd like to point out that it sometimes requires more than one attempt to restart Charge 5. So, before throwing the towel, please give it another try.

I'll keep my fingers crossed.

[SunsetRunner]

Hi Talathas, and THANKS! This worked on the first try, and saved me a lot
of headaches.

Zembel

[Talahthas]

You're welcome, @SunsetRunner, thanks for reporting back. Glad I could help you.
Whenever you'll have any further questions or issues, do not hesitate to come back!