Spotlight Cam Won't Reset

I have a spotlight cam that is detecting motion as indicated by activity history, but will only tell me that the motion hasn't recorded correctly. Trying to work my way through troubleshooting as listed elsewhere, and would like to try resetting it. Pressing and holding the reset button does absolutely nothing. (No flashing light, no nothing.) I've pulled the batteries, changed the batteries, etc. etc. and can not get this thing to reset. Device health offers no clues. (FWIW I am nearly certain the original problem I'm trying to solve is NOT NOT NOT a WiFi issue, since all my other cams are fine, and nothing has changed with my WiFi or the location of the router.) How do I reset this camera, please?