HR monitor going insane...help!

[Piggy]

I have had the charge 3 for awhile now. The HR monitor has always been able to register in the vicinity of being accurate. Even when it goes haywire for a few seconds or minutes, it will come right back.

I'm not expecting it to be accurate, but that's more than acceptable for an amateur device.

However, in the last 2 days, it will just register 180-187 even when the heart rate is actually 70-80. No matter what I do, it wouldn't budge.

The only way to even move the needle is if I reset the tracker.

Now, I'm not always in the position to reset the tracker (which requires the charger). When I do reset, it can be back to normal (+5 to +10) or it can be way beyond morning (+20 to +30) While it's nothing like +100, it still isn't quite useful.

Any idea what else I can do to coerce it to cooperate?

Thanks

[Piggy]

Based on this hr, I have burned almost 8000 calories working on my laptop today. Reseting it only helped slightly for a few minutes last 2 times. At this sustained hr I wouldn't be burning all the calories, I'd just be dead😉

[Piggy]

No one has any idea? 

I guess it's that time of the year again. It's time to buy a new fitbit. 

[Piggy]

The tracker has been resurrected. I have no idea how but it started functioning.

After 4 days of constantly getting 180 in HR, it was followed by 1 day of no HR. The setting has HR on, but the entire thing is non-functional. It continued to track steps though.

Last night, I knocked on it a few times and put it on after the shower, and everything is normal again.

The only weird part is the challenge data was reset to one day before. This part is just as weird. It's not completely reset to that moment or 5 days ago, it was reset to 1 day prior.

Historical data appears to be intact, but that probably has nothing to do with the tracker.

I don't know how long its going to keep working, and I don't know what fixed it. 

[Piggy]

spoke too soon.....

It was only accurate when I was sleeping. 30 minutes after I got up, it was back to its usual trick of showing 160s (down from 180s?).