Trying to reset my cam v3, the light is constant red , will not change, will not read QR code, will not connect.
Pull the power, remove the SD card, hold the setup button, plug it in, continue holding setup for 15+ seconds until you see it start factory resetting.
If that doesn’t work either the setup button is not working (they can get corroded, sometimes using a pointed but not sharp object can help) or the cam may be dead.