In the past time, when we unlock map we need to creat gmapprom.unl which include 25 digits unlock code. But now, we just copy the unlocked map to the device then we can use it. Anyone can explain why we dont need to creat a new .uml file and just using the old .unl file can be done?
In the past, the maps you downloaded were NOT unlocked. It was the GPS or SD card specific key saved in the appropriate .UNL file that allowed the GPS to unlock the maps for use in your GPS.
The maps you are now downloading wich say "unlocked" means that their ability to be locked has been removed by some tool or process. To the GPS the maps appear "unlockable". There is no .UNL file required for an "unlocked" .IMG and if you've got a .UNL file hanging around your GPS you can delete it if you wish. It's doing nothing.
Last edited by Tiger; 6th June 2010 at 14:00.
Thanks 2 brothers above!
q1: Is there any advantage to change the 25 digits unlock code to my gps id?
q2: I found a thread in our forum:, Doesn't the unlocked map created by this tool need the .unl file either?Code:http://gpsunderground.com/forum/showthread.php?672-Garmin-unlocker-alternative-New-v.5.2-update-04.05.2010
As the Tiger said, if you are using non lockable maps (already fixed) there is no need to do anything else but load into sd card or gps.
The alternative method you are referring to is new method that suppose to work with new Garmin locking technology that is imbedded into the newest firmware for gps receivers. For now I have no use for it. I will keep the current firmware of my gps units.
Last edited by Moose; 7th June 2010 at 00:53.
thank you guys for your kindness
Where can I download "gmapsupp.img key editor v0.2 " ?