Transducer help

I bought my boat new with a Lowrance Elite 7 DSI with transducer mounted in the hull. I recently upgraded to the HDS 7 Gen3. I was told that if the transducer had the blue connectors it would work. I have no information on what transducer is in my boat, from what I have read it was a 83/200. After I connected the new HDS 7 I selected the Generic 83/200 transducer from menu an everything worked. On my first trip out , about 3 hours into fishing I noticed that my sonar wasn't working anymore, trouble shot it and figured that the unit was bas. Sent it to Lowrance and they said its 'XDCR isn't working due an electrical damage (sonar microcontroller damaged)' and are replacing the unit. I was wondering if I selected the wrong transducer from menu that fried the unit? How can I find out for sure what Transducer is in my boat? I look at transducer and no markings and cable is tagged. Any help would be appreciated! Thanks

I always thought all blue connectors were the same. Did you ask Lowrance about this?

the connections are the same, but I have 35 different transducers I can pick from the menu. I did not get with Lowrance on this yet, figured I'd try here first.

picking the wrong ducer in the menu will not be the cause of frying it.

Didn't think it would, but figured I'd ask.