Yes, I download the backup of the F90BT and transfer to the unit, but it doesn't work. I Change some files, mine is European unit and the backup is American, and it reboot every couple of minutes. I was trying to guessing what files are corrupt in my backup but no way. I've tried too to erase the for gps*.bin, unfortunately not work. Even I have tried to complete the LPUE080 the maps, license, voices, and all the missing things, but I get an error of out of memory.