LiteOn L100 GPS maps Update

 

I have a LiteOn L100 GPS unit that I purchased in 2006. The maps are somewhat out of date, and LiteOn sold the software to Nokia and, as far as I can tell, they discontinued manufacturing the unit. I only need to update the following file: north-america_map.cdt.

Does anyone know where I can find a new version of this file to download?

Thanks for your help.