Completely dead doorbell (2nd gen)

I recently purchased a solar panel for my Doorbell (2nd Gen). Thru the app, we confirmed that the solar panel was working however we noticed the battery level of the doorbell was decreasing quicker than we expected. We did take into consideration the weird weather we’ve had in our area (cloudy, raining, chilly). On the day we finally had some sun, the doorbell died. I didn’t get home in time to plug it in. When I went to plug it in with the orange cable it came with, the light (blue circle) did an intermittent blinking (slow blinks) then it started to rapidly blink. I swapped to another Ring cable I had and tried that, same outcome. I tried different power sources (extension, wall units, laptop) same outcome. We tried pressing the button on the front, no changes it continues to blink rapidly. We attempted a hard reset on the back with the orange button, no changes. Any ideas? The doorbell is completely dead and doesn’t seem to be getting any sort of charge from ANY source.