Thread: Enable features in your nuvi 12xx, 13xx and 14xx - JCV, LA, TTS

Good Evening. . .I have a Nuvi 1350 with 5.90 & B0972-00. . .I am currently downloading the 2014.20 map. I had inquired about where to get the JCV files for this update and was told that my nuvi doesn't support these but. . . .I could patch my firmware to enable it.
WOW - this thread is really long.. . .I have attemted to read through and try to follow all of the updates but I am feeling a little over whelmed. My computer does have Windows 7 so do I just need to stop there because I can't use the software?

I would greatly appreciate some advise and directions for modifying. . .Thanks so much in advance.

PS: I also have a 255w. Can I update/upgrade it?

Yes, you can enable JCV in your US 1350. JCV is the only feature not already enabled in it. Firstly upgrade the fw to the current version 6.20 [you can use WebUpdater to make it easy], then the simplest way is to dl the SD card files from the end of Post #1. The thread is long, but everything you need to know and the current links are in post #1 really. Win 7 is no problem, if you have any trouble just run as administrator and/or change compatibility setting to WinXP SP3. If you use the SD method then there is no problem anyway as there is no need to use your PC to load anything to the device.

As for your 255W, you can't use this splash or any equivalent. You maybe would like to convert it to a 465T 'Truckie's Nuvi' and get LA but not JCV [check it's got HWID 0827 and only use the original 2x5W boot.bin]. There are other methods using Asian 2x5W fw, but too many downsides with that imo.

Thank you - I updated the Nuvi 1350 to the latest software using the web updater. Then I downloaded the (13xx in 14xx 6.20 for JCV.rar ) inside the rar file is a folder named updater. Inside that was updater.exe and the xxx.rgn.
I then copied my nuvi's gupdate.gcd onto my desktop, deleted it from the nuvi. Put the Nuvi into diagnostic mode by pressing battery icon for 5 seconds and then connected USB cable to computer. Waited for the computer to recognize it. Then I double clicked on the updater.exe, chose usb, clicked ok, clicked yes. Process is complete.
Then I saw after nuvi reboots you can put the gupdate.gcd file back in thte .system folder. However when I went to do that there was already a file with that name there. So I assumed that I did something wrong. So I went through the whole process again and this time there was no gupdate.gcd file when I went back to add it. Maybe I didn't deleted it like I thought I did. . . .But now. . .

Where to I put the JCV files? Assuming that I did the first part correct.
I have gmap3d.img also. Can someone tell me where to put this?

Originally Posted by SeptemberC

..............
I have gmap3d.img also. Can someone tell me where to put this?

Politely? Sure, in the bin. It's only suitable for more advanced units [it's to see 3D buildings]. It won't work in your 1350, flashed with this modded splash or otherwise.

Put JCV files in Nuvi /Garmin/JCV or sdcard /Garmin/JCV
If the folder does not exist then create it.

Lots of users make a mistake and call the folder JVC

@SeptemberC
look at garmindevice.xml in Garmin folder, all files paths are listed in it.

You have to find and download the JCV file manually. As far as Garmin is concerned, your unit doesn't have junction view even though you now have the feature.

Originally Posted by tli

Anyway, my hesitation is that once JV is enabled on a unit that has the Lifetime Map (LM) feature, would future map updates downloaded via Garmin Express (GE) have the JCV files automatically downloaded too?

The JCV files would be automatically downloaded too!

Originally Posted by Strephon Alkhalikoi

You have to find and download the JCV file manually. As far as Garmin is concerned, your unit doesn't have junction view even though you now have the feature.

It is not so! It is depend of Logo in unit. Some of 1350T have full features and it is generally depended of market where it was sold...

Originally Posted by Giomen

The JCV files would be automatically downloaded too!

... It is depend of Logo in unit. ...

Thanks for the inputs! By "Logo in unit", do you mean the 'Splash' being 'D1340-50' when JV is enabled instead of the 'D1340-00' when disabled? GE would be checking this 'D1340-50' inventory component ID when performing a LM update? Not checking the registered model (1350LMT) and/or serial number(s) of the unit? Again, thanks for any additional insight.

[Edit] Or is the logo.bin file found here:

[Only registered and activated users can see links. ]

gets changed when this patch is used to enable JV? If so, is GE checking this logo.bin file when doing an LM update? Thanks again. [/Edit]

[Edit 2] I see that the logo.bin file has the 'D1340-50' inventory component ID written inside it. So GE checks this file when doing a LM update instead of using the registered model number or serial number? Thanks again! [/Edit 2]