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18th February 2020, 03:26 AM #1
Garmin Mod
Supporter
Welcome to the forum and thank you for reading up before posting,fortunately your device dose NOT require Patching to use unlocked maps
Your next steps to check outnuvi 23xx (GCD File) 006-B1187-00 Release 3.70
Garmin_Nuvi Reviewed by Garmin_Nuvi on . Universal Firmware Patcher for Protected Garmin Devices Universal Firmware Patcher for Protected Garmin Devices v.1.10 This is an universal firmware patcher for protected Garmin devices. Many devices recently have a strong firmware protection and cannot use unlocked maps because firmware requires .gma and has MSV ( Map Signature Verification). In this list (http://www78.zippyshare.com/v/CWAOqHso/file.html) you will be able to check if your device firmware requires this patcher or if it just needs gingunlock+mapsigpatch or simply an .unl file Rating: 5Last edited by Garmin_Nuvi; 18th February 2020 at 03:37 AM.
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sabi (20th February 2020)
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6th March 2020, 10:04 PM #2
Hi Firefox 58, Genio3, Colin1, Antonio19 and Olda1
I have several Garmin teams; 30, 50LM, 255W, 1690, 3590 and 3597LMT.
Two days ago I updated through the Garmin Express on 3590 and 3597LMT with the City Navigator North America NT 2021.10
and Canada, USA and Mexico took charge, actually I only use Mexico and download the IMG Mexico from this link:
I have read this post report 241 to 255 and I have done everything indicated in it for 3590 and 3597LMT.
I have used gimgunlock-0.04.exe and GarminUnlockerAlternativev8.0.1 and it does not recognize the map from SD.
I tried with three SD cards, 2 of 4 GB and one of 8 GB.
I would appreciate your comments, greetings.Last edited by cibereldon; 7th March 2020 at 03:27 AM.
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8th March 2020, 08:35 PM #3
I do not understand!
You have a Life Time subscription, why do you want to complicate your life?
If you are not interested in Total North America Coverage, download the reduced MapSet of Mexico only, Garmin Express allows you to easily do so.
However, your devices don't need any Firmware Patch to read Unlocked Maps.
Copy the Unlocked IMG of Mexico to the \Garmin folder of the microSD, name it as gmapsupp.img.
Remember that in order to read this Map there must not be another Map with the same or greater coverage in the device memory (folder \ .System).
I mean that if you have Full North America Map in \System folder (gmapprom.img), the Device load this and NOT the Map in microSD
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12th March 2020, 12:13 AM #4
FireFox58:
I appreciate your response, I did not know that Garmin update allows me to download and install only Mexico.
I also ignored that there should not be another Map with the same or greater coverage in the device memory (folder \ .System).
Again I appreciate your guidance, greetings.
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9th March 2020, 06:33 AM #5
Hello Ill try to keep this short to explain my situation. Ive been making snowmobile trail maps with GPX2IMG and MapSource for my Nuvi 1490 for years. I bought a larger Garmin, Nuvi 65 LM and attempted to load my custom maps on it, which the name shows up in map list but does not display.
I am totally NEW to this idea of modifying the firmware so I really do not understand what some things mean. Sounds like depending on the model it may or may not have the restriction on displaying unlicensed maps and it may be just a setting.
THis is the first few lines of the GarminDevice.xml file, so is the hardware ID 1749 and does it need the firmware updated or something less?
<PartNumber>006-B1749-00</PartNumber>
<SoftwareVersion>450</SoftwareVersion>
<Description>nüvi 65</Description>
</Model>
Thank you for your help!
PhilLast edited by Garmin_Nuvi; 9th March 2020 at 01:26 PM. Reason: Removed Device details
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9th March 2020, 01:32 PM #6
Garmin Mod
Supporter
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Chauffeur1 (9th March 2020)
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11th March 2020, 07:03 AM #7
Hello thank you for your help, so I downloaded the file, as it said but the instructions are a bit confusing to me. There appears to be three sets of instructions in the 105 post. I did the first one that says to extract it to a new microSD card, I put in GPS and turned it on. The word loader did appear at the top for a short time but then went to the garmin warning page and I agreed. It then looked normal. I powered off, pulled out microSD and put in my other mSD that has my maps on it but it did not display. I checked the root of garmin drive but it did not have the 154.bin file so I assume it did not work. I tried it again but the loader msg doesn't appear again. There are two other sets of instructions, Method 1 and Method 2 in the 105 post, but they appear to be for updating the GPS firmware?
Thank You ~ PHil
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12th March 2020, 03:48 AM #8
The word "Loader" appearing means that the flash was initiated.
The nonvol region backup is saved on the CARD not the Garmin drive.
When the card has been read by the device there will be a new file name "update.log" will appear in the 1947 folder and its presence precludes further flashing attempts until it's removed from there. Please post it's contents. Also check that a file the file named GUPDATE.GCD isn't in the device's [usually hidden] .System folder in case it's interfered with the flashing process.
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10th March 2020, 04:01 PM #9
my 276cx is chinese version, can i use the same firmware updater?
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10th March 2020, 11:55 PM #10
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