Now you have two options here:

Option 1 - saving mapset on a storage media (SD Card)
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1. Once you get your unlock code, save it into a file called
GMAPSUPP.UNL (using Notepad let's say)
2. Rename your downloaded gmapprom.img to gmapsupp.img.
3. Create a directory called Garmin on your storage media root
directory
4. Put both GMAPSUPP.IMG and GMAPSUPP.UNL to Garmin directory.
5. Insert your storage media into the nuvi and there you go!

Option 2 - overwriting existing preloaded mapset within the nuvi
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1. Once you get your unlock code, save it into a file called
GMAPPROM.UNL (using Notepad let's say)
1. Connect your UNIT to the PC and go to Garmin directory.
2. Make a backup copy of your current GMAPPROM.IMG mapset file.
3. Delete GMAPPROM.IMG mapset file from your UNIT.
4. Upload the new GMAPPROM.IMG mapset to your UNIT (same directory)
along with GMAPPROM.UNL and there you go!

All thank,s goes goes to 'JetMouse' for giving this Solution!

Garmin Unl Keygen 2017

How to Unlock locked Garmin maps already installed on computer. Releated post: Blog: Telegram: ht. Overview: There is a checksum bug in JetMouse Garmin Keygen (a.k.a. Garmin Unlock Generator) versions 1.3, 1.4 and 1.5 which generate invalid unlock codes for some map IDs such as 2040 to 2047. This release fixes the bug by a binary patch to v1.5. 3) Pirate/Hax0r: Well, if everyone here would post their unit serial # and the unlock code Garmin gave 'em, someone could decipher the algorithm and code a keygen. And it'd only be used by people who have legally purchased a Garmin product and want to move it to a new Garmin product.