I installed a brand new Lawrence Hook2 4x with gps. It's a very basic unit that I needed for pontoon. The depth is way off. It was all over the place and was mostly saying 10 ft when it was actually 25-35. Also the mph always read 2.2mph whether I was wide open or sitting still. Came with no operators manual straight from Lawrence! It is always flashing "simulator" on the screen which makes me think it's in a demo mode but can't figure it out. Any tips or ideas? It's my first boat so I'm pretty dumb to this stuff.
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