So you spent the past three hours downloading the new garmin_rmu_cnnant2010_40 map update. Everything goes well and you receive a maps successfully loaded massage.
You disconnect your Nuvi from your computer, watch it boot up, only to see "can't unlock maps". Your first thought? WTF.
Well, here's what happened. Each new map set has its own Unlock Code. My Unlock Code is a string of twenty-five letters and numbers. Your 2010_30 Unlock Code won't work for your 2010_40. Well, Garmin play little joke.
Your "Manage Maps" page at garmin.com contains a listing of ALL your Unlock Codes. The map update process grabs the first Unlock Code it comes to. In my case, it grabbed the Unlock Code for 2010_30, which didn't work for my 2010_40 maps. Haha! I could almost hear the two billionaire owners of Garmin laughing from their homes in the Cayman Islands.
Instead of fixing their update software to find the correct Unlock Code, Garmin provides the fix in the "How do I correct the message "Can't unlock maps," thread at http://www.garmin.com/garmin/cms/site/us/lang/en/searchsuppo...
Summary: Basically, you need to replace the gmapprom.unl file inside your Nuvi at H:\Garmin with one containing the correct Unlock Code.
Steps provided by Garmin to correct the problem:
I haven't had that problem with my updates, but thanks for the solution.
Thanks for the explanation
Thanks for the detail info. But it didn't work for me.
It'll only work in certain situations. Perhaps you could explain your exact problem?
As noted detail is needed for assistance. To quote Johnny 5 from an old movie, "More input!"
I can't remember the last time I logged in to 'MyGarmin'. It's been years, now.
I think the last time I used myGarmin, it still required the Garmin Communicator plugin/extension and that's quite some time ago.
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