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Unluckily for me, I bought my nuvi 55 only 4 weeks ago, before I knew that it had protection to stop you using unlocked maps. It came with 4.30, but after reading this thread, I updated to 4.40 hoping that would do the trick. But alas, there's no change for me, and it still rejects an unlocked NT USA map. Bugger!!
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10th July 2015, 06:25 PM #1Junior Member
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10th July 2015, 11:02 PM #2Important User
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Unlocked with what?
Originally Posted by WillUK
FW 4.40 accepts NT maps unlocked with latest gimgunlock+mapsigpatch
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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10th July 2015, 11:43 PM #3Member
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I have updated the firmware of my 55LM to version 4.40 and the map South America 2016.10 is still working.
Some time ago I updated to version 4.30 and it didn't work, I had to downgrade to previous version; now with this new version it works, great news...
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11th July 2015, 11:53 AM #4Junior Member
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Because the map I'd downloaded said it was already unlocked, I simply copied onto the microSD card and got nowhere. But after reading your comment about using gimgunlock+magsigpatch, I tried that, and success!! Thanks very much for the advice - I'm so glad I came across this forum, not only for the help this time, but also because it's an entertaining read, and full of useful information. Originally Posted by catymag
Last edited by WillUK; 11th July 2015 at 11:56 AM.
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12th August 2015, 09:58 PM #5Member
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Hello catymag, is there a way to know what software was used to unlock a map? Originally Posted by catymag
I ask because I downloaded a Europe map (CN Europe NT 2015.20 by mafozi) and it doesn't work with firmware 4.50 on a Nuvi 55
Can it be re-unlocked with the latest gimgunlock+mapsigpatch? or Do I need the original locked map?
Thanks...
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12th August 2015, 10:53 PM #6Important User
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You can run on it gimgunlock+mapsigpatch, no problem, if the map is good. Next time download original locked map and unlock by yourself. Originally Posted by gmua
I distrust these modified files. Btw your map is old, latest version is 2016.10
@Neil was faster
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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12th August 2015, 11:43 PM #7Member
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Wow! that was fast (you both were fast catymag
) what a great utility this is, it fixed my Map in just a few seconds.
I've been trying to download a newer map but those zippyshare files are taking a lot to download.
I also distrust these kind of files, but I found this map before I found this great forum.
Thanks Neil and catymag.
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