Hi all and all sifuuu
I newbie here and need your help to solve my problem.
Just got local Garmin nuvi 2465 a month ago. My GPS installed with City Navigator and Malsingmap NT2011.40 together with Thailand map in the internal memory.Then I plan to use MSM 2012 NT v.5.42a map so I buy 8G micro SD card.
In the SD card…I created Garmin folder and save gmapsupp.img (MSM 2012 NT v.5.42) and created JCV folder inside Garmin folder. Paste JCV.img in the JCV folder.
JCV.img? Do you mean Product.JCV? When I go to TOOL>Settings>myMaps… I can see MSM 2012 NT v5.42a and its work Hehehehe…
Up to this point you have done correctly. Since you know how to access Tools/Settings/MyMaps, then you should not have problem to select which map to make active. Among MSM NTv5.xx, City Navigator map of Singapore & Malaysia & MalSingMap NT 2011.40, you can only use one at any one time. You can also check the Thai map but unless you are going there, why waste RAM memory to load on a daily basis, a map you don't use?Here come my problem

…next two week I need to go to Indonesia and I download Indonesian map (Navigasi.net v2.18 For Garmin-NT) and install in my computer. There is file gmapsupp.img and I copy and paste as gmapsup2.img in my micro SD card under Garmin folder. When I go to TOOL>Settings>myMaps… no addition map appear (no Indonesian map). Please help me.
No problem at all. Just create another folder named \Map in your SD card and copy the Indonesian map into it. You can retain the name as gmapsup2.img or change it to for example Indon.img for easy identification. When you arrive in Indonesia, just go to Tools/Settings/MyMaps and activate only the Indonesian map and deactivate everything else. When you return, you can deactivate the Indon map and activate the MSM 2012 NT v5.xx map again.I read a lot from internet…and they said its work (other Garmin model)
For many Nuvi models gmapsup2.img works but only when it resides in the internal memory and not in the \Garmin folder of the SD card.but in my case nuvi 2465, it failed. Please advise me how to add 2nd map or 3rd map in 1 SD card. I thing with my 8G SD, I can put a lot of map inside but the problem is I don’t know how.
Put them in the \Map folder of your SD card as long as you give each map a unique filename.