What do the led colors mean?

What do the different LED blinks and colors mean?

From here LED color meaning : Carsifi

Blue - adapter loading

Flash green - adapter trying to connect to a paired phone

Solid green - adapter connected to the paired phone and the Android Auto session started.

Solid red - smth wrong happened or attempts to establish Android Auto connection with the car have ended.
Solid white - automatic connection paused.
Yellow - reset or update the firmware is going.

I wonder if this means my red is burned out. When mine reaches a failed state I get this really light bluish color. But I’ve never seen any shade of red.

Try a full reset, as described here: