The JCV should be in the same folder as the gmapprom.imgįind the nav id number its 10 digits long in the about section in the nav settings and then using map id 3047 generate key its 25 digits longģrd tried 2014.2 with JCVd306.130a map and pnd successfulĤth I had to use the jetmouse to get a serial code it worked like a charm Garmin /gmapprom.img and Garmin/JCV/D3060130A This process updated all my maps and the radio software at the same time.ġst I updated to 33.xx.xx.xx.xx using dvdĢng format usb fat32 using the 2014.2 gmapprom.img from TPirateB and JCV D3060130A in root dir of the usb It did not ask me for a code for the maps. Starting the vehicle will interrupt the process. It took me almost 2 hours to complete all updates.ĭo this update with the vehicle running or a charger on the battery.

Insert the DVD in the radio unit and wait for a long time. Burn all content and not the 'Radio Update' folder.ħ. Now you need to burn the content of the 'Radio Update' folder on a DVD. (optional) if you have the junction view files, create a folder called JCV folder inside the 'Garmin' folder and copie the JCV file in there.Ħ.

Once copied inside the 'Garmin' folder, rename it gmapprom.img. Copy the file gmapsupp.img from the newly download folder 'Garmin City Navigator North America NT' to the folder called 'Garmin' inside the 'Radio Update' folder. Copy all the file to a new folder on your computer. Its free) and open it to see its content. ISO file on a virtual drive (I used Daemon tool. (I used 2014.10) You can find it on most torrent site.ģ. Download the latest copy of Garmin City Navigator North America NT Unlocked. I found it easily doing a google search.Ģ. (I used the last 50.00.07) It will be usually in. First you need a copy of the radio software update. This is for someone who knows his way around a computer.ġ. I have been doing some research on how to update the Maps on the 430N RHB.

Jetmouse software