Recently I upgraded my SS3D transducer software (StructureScan3D-20.0-63.1.222-Standard-1.riw) and now notice it is clicking VERY LOUDLY. I can hear it clicking from the front of the boat, never heard it before this upgrade. Lowrance finally got back to answering my email with this... Thank you for contacting us.
Yes, you should hear that clicking/pinging sound for you to be sure that your transducer is working properly.
The thing is clicking so loud now it would scare deaf fish away..... Has this happened to anyone else since updating the software? I hope I don't have to do a Hard reset.