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JNX format is supported by the following Garmin devices: Astro 320, Colorado 300/400, Dakota 10/20, Edge 800, Etrex 20/30, GPSMAP 62/78, Montana 600/650, Oregon 200/300/400/450/550, Rino 610/650/655.Originally Posted by hi2u
read at
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list of supported firmwares
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Thread: Patched firmwares for JNX files
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25th April 2012, 03:47 PM #1Important User
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You have to navigate to get to the good.
Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
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3rd May 2012, 03:52 AM #2hcchGuest
hi is there any good upgrade for a nuvi 255w?
thanks
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4th May 2012, 09:18 AM #3BallebarGuest
@hcch
Assuming that you ask for for existence of some upgrade for nüvi 255w within the thread topic.
The JNX patcher and related patched firmwares is only for Garmin units that uses JNX files.
Also look at post [Only registered and activated users can see links. ]. It's actually the post before your own and you should have read that and got the answer before posting your question.Code:Please Login or Register to see the links
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4th May 2012, 05:22 PM #4AlexWhiterGuest
The patcher is updated to version 2.10. In the new version, support of latest FW 4.02 for Montana is added, as well as FW 2.50 for Edge 800 Japanese Edition, and some custom firmwares with non-standard GCD containers.
The archive is available from [Only registered and activated users can see links. ].
[Only registered and activated users can see links. ] is a direct link.
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8th May 2012, 01:54 PM #5Master
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@ AlexWhiter
Hello Alex,
I have a few questions - Is it really needed the firmware to be patched so to be used the created .jnx files? Is it possible to create and use jnx files without patching the FW?
Thanks,
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8th May 2012, 02:27 PM #6AlexWhiterGuest
There are two options: Originally Posted by ddabcd277
1. Patch a device, and then use any valid JNX map in it.
2. Leave the device as is, buy a BirdsEye subscription, and then use BaseCamp to sign every JNX map you'd like to use in your device.
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8th May 2012, 02:51 PM #7Master
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Correct me if I am wrong - a device won't read a jnx map if the jnx is not signed by Base Camp (garmin)? Am I correct? That is why the patch is needed?
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8th May 2012, 02:55 PM #8AlexWhiterGuest
Yes, you are correct. The patch removes the signature correctness check. Originally Posted by ddabcd277
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8th May 2012, 03:19 PM #9Master
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Ok, thanks I understand! So basically this is the problem. N one can create signed jnx.
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8th May 2012, 07:35 PM #10Master
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Hi,
If I patch My Montana firmware 3.9 with firmwarepatcher, will it be possible to come back to the original firmware 3.9 ? How ?
I created a .jnx file with Map2MAPC and apparently .jnx files can't be seen in Basecamp as .kmz files can.
I haven't yet well understood the process although I read all posts. What can I do with the firmwarepatcher.exe ???? Where do I have to run it ? Some people use internal memory, others SD cards ............
Furthermore, I can't find any gupdate.gcd file in Montana Garmin folder.Last edited by sergio2; 8th May 2012 at 10:00 PM.
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