I have tried Hard Reset a couple of times but nothing changes.
Any suggestions?
Is it doing what a lot of the venue sq's are doing by not recording? If that's the case I have had that with the sq and no matter how many times you restart it it will go out over time so annoying.
Is this for the Venu 2 or SQ? Do you see the lights on the back flashing?
4771459 since you have a Venu Sq and not a Venu 2, please see the thread for that watch:\
https://forums.garmin.com/sports-fitness/healthandwellness/f/venu-sq/280112/wrist-heart-rate-stops-saving-after-charging-leading-to-missing-body-battery-data