Hey @Dippa91! The LED indicators flashing is a good sign that the Cam is attempting a connection. I recommend charging the battery all the way, if you’ve not already done so, to ensure the Cam has enough power to complete a connection.
As you mentioned performing a reset already (holding down the setup button for 20 seconds), the next best step would be to attempt a new setup in the app. Try also, removing and reinstalling the Ring app on your mobile device to ensure it is up to date. I hope this help! 