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If you already have Sygic installed on your phone, please uninstalled.
You have 4 folders, 2577,DriveDriveDrive,Maps,Res, and one app in sis format (or uiq., wm., whatever you need). Copy them in the root of your memory card. Don't make any new folder(like Sygic or McGuider). Directly in the root of MMC(drive E).
Copy the map you need in folder "Maps" [ITA(folder) and inside ITA.pak]
Download the voice you need and put it in "Voices" folder witch you will find inside "Res" Folder.
Go to your file manager, to "E", find the sis.file and run it. Now the app is installed.
Now, go to menu in "Aplications",find "McGuider" icon and run the software. Go to Settings/About and find your Device ID. Write it down and use the keygen
Now, after starting the app,choose the map you copied in folder "Maps" (the one you use). You will be asked to activate the map. Do this using the license you just got from keygen.A message saying that "Map All Maps loaded"
Go outside, wait for GPS signal and after you got it, go navigate. Enjoy.