I try to had files on my Iphone to GARMIN North America and to add line to 'TargetConfig.plist' and 'settings_general.plist' . I cant save my text in *.plist . I can add new folder and files in it but i cant transfert files from PC in existing folder of Garmin StreetPilot. I was abble to do it before IOS 6 now i download Ifun box 2.1 the latest one and Iexplore the latest one to how supose to be IOS 6 fully supported. I have WIN 7 32 bit. my Iphone 4S is jailed and i have IOS 6.1

could someone help me plse