Charge 5 ECG keeps resetting

[Stonearches]

Hi My charge 5 appears to function normally except for the ecg. I start the app, get the message “put index finger and thumb on the metal sides”. I place my fingers and the app starts to count down to maybe 20 then loops back to the start message. Sometimes it only counts down to 28. I’ve scrubber both my fingers and wrist to I sure they are clean. I’ve cleaned the charge 5 using isopropyl alcohol. I’ve restarted and performed a factory reset. The ecg still loops. Any help would be appreciated. 

Moderator Edit: Clarified subject

[RiekoC]

Hello @Stonearches 

This help page (<-- click) has troubleshooting tips to try. Check the Inconclusive: Didn't get a good reading section for the troubleshooting tips. 

One other thing to try that I didn't see in your troubleshooting is uninstalling & re-installing the ECG app from the Fitbit app. If you need instructions on how to do this, see this part of the same help page (<-- click).