Format the SD card and create one file called ver.req. Put the camera in review mode, then press FUNCSET and DISP simultaneously: * dumped (using udumper). Version: Canon DIGITAL IXUS 750 P-ID:3116 PAL Firmware Ver GM1.00G No erro Aug 3 2005 13:58:33 * I have dumped the most current version I can find (using udumper). Version: Canon DIGITAL IXUS 750 P-ID:3116 PAL Firmware Ver GM1.00F No error Jul 7 2005 15:45:08 * Another version (GM1.00H) dumped (using udumper) Version: Version: Version: Canon PowerShot SD550 P-ID:3116 NT Firmware Ver GM1.00G No error August 3 2005 13:58:33