What would you suggest? There are some features under different fireware versions (Mp3 and Poi's on the map). The .rgn is only for other devices? I understood like this. Combine you orginial boot.ini with fw-all.bin and fw1_rescources remember your Version from boot.ini and alter the fw_all.bin and fw1_rescources.bin to the same version like boot.ini? Create one gupdate.gcd and overwrite the one under .System. - Finally reboot. What is about the language is it Thai or something else, I would suggest it reboots the the default language you have choosen. That about voice activation navigation? Will it function?