Good day all. A couple of months ago I bought a boat with electronics (2 Lowrance X28 and X71 and a Garmin GPS) that supposedly worked. Took his word and turns out wasn’t worth a mud pie – lesson learned YET again!! The GPS seems to work fine. Neither Lowrance functions. Anyway, the Lowrance X91 (not sure how old the unit is) would give me crazy depth readings, like 1700 ft in Henderson a part of the Atchafalaya Basin – not sure what the deepest is in the lake but feel safe saying nowhere near that. I researched and found a procedure to “reset” the unit to factory settings. Did the procedure and now shows constant Zero depth.
My question: Is there anything else that I may be overlooking that’s a simple fix or setting? Don’t think its worth sending off for repair when a new Mark 5X Pro is less than $130….
Not very experienced with this stuff and any suggestions would be greatly appreciatied.
Oh, I haven’t posted picture of the boat yet – waiting on CDC decals. Will hopefully have them soon.

Thanks and have a Great Day!!