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The best way is to make a nuvi backup first, then look at old files in nuvi and replace them, remove old gmapprom.gma if present and gmapprom.unl.
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Thread: Update Maps Nuvi 780
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21st June 2015, 05:10 PM #1Important User
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You have to navigate to get to the good.
Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
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21st June 2015, 05:46 PM #2VIP Master
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Thanks catymag.
Originally Posted by catymag
I'm backing up all the files right now before I do anything.
How do I know if there are any "newer" files available other than what's on the unit at this time?
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