These are the installation files i used...
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But it was several years ago when i did it, so this might not be the correct procedure!You may not need the image folder, it's just a backup from that phone.
Go to our Garmin map section and download the maps you need,
Tip go for City Navigator (CN)
The map needs to be named
gmapsupp.imgYou need to run the installation files on the PC which creates the required files to go on the phones SD card
Put the map in the Garmin folder, in the image folder is an empty file renamed gmapsupp.img as a guide
Make sure these files are in the root of the sd card
Then install the .sis file on your phone
Run the Garmin app, and find the Card ID in "About" (i think, it was the same procedure as the WinCE version)
Use the keygen to generate the license number and add that number into the file sw.unl as text.
Re-run the Garmin app and find the setting for GPS and select use internal/built-in etc
That should be enough to get it working, however i remember it took ages to get a satellite lock, and it was quite slow in operation.