Hi all, I just switched back to my old cgm transmitter after losing my current one. I am looking for some advice on what is going on here. I placed a new sensor in around 2 pm today. The charger flashed red when I plugged the transmitter in. So I assumed it was completely depleted of charge. I charged it until 7 pm at which point I unplugged it (since it was no longer flashing green) and plugged it into my sensor. It did not do the typical green flashing light. I unplugged and replugged it into the sensor and it did not work. I tried the tester and it did not light up as well. I called Medtronic and their advice was to charge it some more which I am doing. I was wondering if anyone else has had the transmitter literally do nothing when plugged into the tester? Any advice for this situation? Is it possible the transmitter is dead even though it clearly works in the charger? Thanks for any help! I am not really sure what to do in this situation.