What you have to do is install a map to Mapsource. When you register your Garmin GPS with the Garmin website for the first time, they give you a limited time free City Navigator NT map update that they normally charge $60 for. This map can be installed to both your GPS and MapSource. The map should now be Unlocked. Related posts: Free GPS maps for Garmin MapSource. Unlock the Nokia 6300 for under $10 with the iSIM. Unlock a Sony Ericsson mobile locked to the 3 (Hutchison) network. ThydzikGoogleMap v1.3. In search of the elusive Google default marker.

I have Nuvi 55LM. By this method Garmin tells me 'cannot authenticate maps'. Any way I can get MMI maps for Garmin?

MMI website does not have it there last I checked. I was finally able to install new 2015.20 maps on Nuvi 55LM after lot of hit and try method and over 4 hours research!! New devices have different copyright protection and was able to unlock the maps using gimgunlock.0 MapSigPatch.rar from Then turned the device into MPT mode and swapped the unlocked the img file with unlocked map file in.System hidden folder. No need to rename the file or copying needed on SD card. I'll soon be updating to the most recent version of maps (and f/w if its older) on my 2565LM.

I guess, I'm running one of those 2014 versions or 2015.10. I was always using MMI on my garmin device for last 3 years but since this last update, it seems Garmin has improved their maps and coverage really well and I see most what is covered by MMI also covered by Garmin, I'm yet to make a long trip with Garmin on it and see the way it does routing, takes you to the bypass wherever needed etc. Has anyone got any inputs on comparison between the latest MMI and Garmin maps? Its good to see the junction view on Garmin maps which I cant get on MMI. Also, what about these latest on zomato dining information and travel book download? Has anyone used it!!

I am looking to buy GPS device for few days now. Still confused if I buy a dedicated GPS device or a Low end smartphone (within 5-6K with decent battery life) with paid navigation applications so that it will no more data access.

Today found Garmin Nuvi 42LM on internet which is 5.5K only. Is it have too small screen? Does it require additional micro USB to upgrade the maps in future? Can any one advice me that what should I choose? I read the some difficult map procedure in the Garmin 42LM device. Any help will be highly appreciated. Thanks ( ) Thanks.

Today found Garmin Nuvi 42LM on internet which is 5.5K only. Is it have too small screen? Does it require additional micro USB to upgrade the maps in future?

Can any one advice me that what should I choose? I read the some difficult map procedure in the Garmin 42LM device. I had gotten a Nuvi 42LM unit a few months back - refer to the post bookmarked above. If its still available around 5.5K then the deal is pretty good. Some of my inputs after using in the meantime: - the screen size is just fine for its purpose, - it comes with mini-USB to connect to your laptop through which you could do s/w & map upgrade, - upgrade procedure is not difficult and s/w upgraded just fine; but the map upgrade had issues (not the procedure, but version doesn't change). - iTNerd suggested a bypass for that, I haven't tried it yet.

The pre-loaded OEM map is not very old, so didn't go for the hack. I had gotten a Nuvi 42LM unit a few months back - refer to the post bookmarked above. If its still available around 5.5K then the deal is pretty good. Some of my inputs after using in the meantime: - the screen size is just fine for its purpose, - it comes with mini-USB to connect to your laptop through which you could do s/w & map upgrade, - upgrade procedure is not difficult and s/w upgraded just fine; but the map upgrade had issues (not the procedure, but version doesn't change). - iTNerd suggested a bypass for that, I haven't tried it yet. The pre-loaded OEM map is not very old, so didn't go for the hack. Thanks for your input Deep.

Do you suggest me to go ahead for Nuvi 42Lm or to go for smart phone for similar price with paid navigation application? Got an information that Microsoft phones (Lumia ones) have better GPS hardware and free full version of HERE maps. Do you suggest me to go ahead for Nuvi 42Lm or to go for smart phone for similar price. You could use any android phone as well for this purpose, and HERE maps/app are freely installable on all platforms.

So that's an option to consider. I had in fact tried this out on my Moto G and found that phone tends to get heated while plugged-in for charging continuously. So if you find a decent phone with higher battery power, that can be considered. In the end as I pointed out, at 5.5K 42LM just looked a steal. Does the USB cable provided is a mini USB type or micro USB type. Also by any chance is it possible to power this device by a USB port of say the car audio USB port?