I think, you have had Gopal6 on your device? For this software I have the files. But, with totalCommander you can install instead also Igo, Tom-Tom, Garmin, Becker
I worked with this device in the year 2011, so I have no more memorys how I made it. You can test, Iam sure, you can reinstall your device. If you are interested, write me a PN