Can't pair the feeder. No sound when keeping the button pressed. Green light always flashing. How to fix? Would love to get it to work. Tried different Wi-Fi, different phones, even printed to QR to super size, different light, no connection. Is there a way I can configure over USB? The feeder does not show a WiFi signal to manually connect to either. I think it is broken. Seller useless, product was defective and bit stressful to open a dispute. Had to send it back and took weeks for warehouse to confirm receiving the returned product.