Which fishfinder???

[Mr. NiceGuy]

I have a Lowrance Elite 5 Chirp installed in April that developed some issues booting up. It would start to turn on for a second or so, then shut down without getting past the name screen.

I called Lowrance today. They were very good with product support. We identified that the problem is in the FF itself, not the battery, wiring, or transducer. They are sending me a new one.

Anything can fail. For me, easy replacement under warranty made me a happy customer.