Question about Whistler WGPX-550 GPS Receiver

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Error message I have a Whistler WGPX-550 GPS unit and cant seem to get the US and Canadad maps to work when I down load the file to a 2 gig SD card. I can get the US and Canada maps to work individually. I get an error mesaage of cannot fine houlo.exe and then it locks up. I tried formatting the drive and re-loading the map on the sd card severak times and still get the same error codes. Maybe the file is courrupt on the cd that was provided to me?

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Re: error message

The WGPX-550 doesn't support 2GB card. You can have Canada on a separate card (512MB will be big enough) and Canada includes the bordering US states

Posted on Feb 11, 2008

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Do you have the CD that came with the GPS? if so, does it list 1 model or two? If two, reformat a 1GB card (unit can not read anything higher than 1 GB) and open the USA folder on the CD and copy the 1 file and the 1 folder in the USA folder to the SD card. You must copy the file and folder over to the SD card and not the folder that is holding these two item, if so it will not fix the problem.

Oct 01, 2010 | Whistler WGPX-550 GPS Receiver

1 Answer

How to fix whistler wgpx-550 Whistler GPS 550 CANNOT FIND HoluxNavi.exe

Go to and click on FAQ. Then select WGPX FAQs. You will see your problem listed and the download to fix it.

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There is a patch for this on Whistler's website - go to their FAQ page for WGPX and look for the intellinavEN problem

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Error code.

I had the same problem, but the fix was to download directly to the SD card.I had been downloading to the pc and then copying to the card.Once I downloaded directly to the card everything worked great

Dec 31, 2007 | Whistler WGPX-550 GPS Receiver

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