Just purchased new 798ci HD si and hooked it up to battery, went through manual with unit in Simulation Mode.
First, the unit locks up solid when changing Setup, User Mode to Advanced then at Sonar, Max Depth, I try to change from Auto and the unit freezes completely showing 2ft, and can only be shut off by disconnecting battery. Happened 4x.
2nd, a previous post says maximum SD card size 32G, must be SDHC. Is this the best size to get, any recommendations on what is available on Amazon. Any precautions or suggestions appreciated.
3rd, unit came with transom transducer XNT 9 SI 180 T, would like to exchange for trolling motor unit, default choice XTM 9 SI 180 T, is there any other choice to consider?
4th, is trolling motor noise/interference a problem? I have Minn Kota Enduramax 55.