Question about Lowrance Iway 500c GPS Receiver

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After the unit has been on for a while it sometimes flips between the screen orientations.(north up/travel direction up/3-D). When it does this the screen may go blank for a split second before the next view appears. the unit does not lose location/tracking when this happens. I have been unable to duplicate this using a power converter in the house - it only happens when driving. I have made trips of several hundred miles without it happening and made trips of less than 100 miles with it happening continually.

I have recalibrated the screen to no avail.

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  • clane Feb 23, 2009

    I wish there was a fix because mine has been doing this for a while. Drives me nuts. Sometimes I just reboot it and that works. Sometimes it doesn't work.

  • clane May 11, 2010

    Yesterday, I left it on in the house and when it heated up, it started doing it. So it is probably a temperature related problem. I use mine on my motorcycle also and come to think about it, it never does it on the bike. Air blowing on it keeps it cool.

    I too talked to lowrance and they said for only $250.00 you will get a brand new one. I already paid them $600.00+ for the 500c. Im not giving them any more money.


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I have the same problem, it started after updating. Spoke with Lowrance tech and said it is a hard drive problem.
I had to purchase a 600 for $250 because they gave me a discount for having paid for the update and the unit
is malfunctioning. They refused to consider that it may be a software problem. The screen loses calibration and
the unit goes balistic with the orientation. Have had the unit for 4 years with no problem until updates were installed

Posted on Feb 24, 2009

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