Recently I noticed two ezb boards did not connect through Bluetooth and no red blinking led. These were earlier models and ezb quality has really jumped up! anyways I tested the connections and found continuity issues , I gently peeled away the Bluetooth with a small flathead screwdriver and removed the tape. I put the Bluetooth back and was sure to press it all the way down. Vuala! This fixed both boards. Maybe the foam warped over time or it was simply too thick to make a good connection but this fixed both my boards connection issues.