Battery Spotlight Flashing Blue & White

Camera has been in use for 3 months. After changing the battery this last time the camera just flashes blue and white and will not reconnect to the network. I have tried doing a hard reset but it will not enter setup mode to connect to the app. Deleted App & Reloaded WIFI?Router has been reset and all other cameras working fine. Also tried swapping to different batteries but same result. We have followed all Rings troubleshooting comments but still no good. Camera on front is fine & connected to WiFi, so doesn’t make sense