My Friend have a Nuvi 3490LMT with Nord America lifetime maps v2013.40 NT installed.Hi will be staying in Europe for extended time ,and He tried to install CNE 2013.30 NTU and Addition files (.ASR,.SID,.JCV,.DB,+ gmap3d.img , gmapprom.img , gmaptz.img) in system folder. He deleted the original US files and replaced them with EU files. The files swap failed due to memory space shortage. EU map is 3gb compared to US 1.9 gb.He restored Nuvi to original state and He does not know what is the best way to proceed short of installing the NT version on SD card. Any help would be appreciated.



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