Fishing yesterday, 360 working fine, then I began to notice a rhythmic thumping noise. At first I thought it was like a base stereo thumping, a d I could actually feel it under my feet, then I realized it was coming from the 360. This was associated with loss of rhe 360 image. Any ideas? This is a new 360, and my second one, as the first had a warranty issue straight out of the box.
Prior to this, I was getting great images, so I feel like it was set up well. Thanks for any help.