Updating g1 firmware
Please read, understand and observe all precautions and instructions before attempting to update the Power Shot G1's firmware.
If you are not confident that you can install the firmware update by yourself, then by all means please ask : You'll need to connect your Power Shot G1 to a compatible personal computer (as listed in the Power Shot G1 Software Starter Guide) in which at least one of the following programs has been properly installed: Each of these programs has a 'Camera Settings' window that displays the version number of the connected camera's firmware.
(The 16MB CF card supplied with your Power Shot G1 is an excellent choice for this purpose.) Use the dedicated AC power supply Compact Power Adapter CA-560 (includeded in the camera set) during the firmware update.
(Do not attempt to load the firmware update without following this step.) Please read, understand and observe all precautions and instructions before attempting to update the Power Shot G1's firmware.
The files contained in the "DC97" folder are listed in the 'Firmware Update Procedure file (PDF file)'.
Insert the CF card into the Power Shot G1, and switch the Main Dial to (Replay) mode.
With Firmware Version 22.214.171.124 or before, BP-511 Battery Packs that had become over-discharged were sometimes not chargeable in the camera.
With Version 126.96.36.199, such Battery Packs can be charged in the camera. We recommend you to update the firmware to Version 188.8.131.52, because Battery Pack BP-511 may be over-discharged sometimes even if it is not stored in the camera and left for a long time without being used.If you try to update the G1 with G2 firmware, the camera will not be damaged but the Firmware Update menu will not appear.Two methods of firmware updating are provided for you: One is to load it by yourself directly from this web page, as described in the Power Shot G1 Firmware Installation Procedure.If your camera needs updating, a downloading screen for the Firmware Update Procedures and Data for Firmware Update will appear.However, if "2" is printed (red) on the inside of the battery cover, the camera does not need updating, because Firmware Update Version 184.108.40.206 has been installed already. Since the hardware specifications of the Power Shot G1 and G2 are different, you cannot change them.Serial Interface Cable IFC-200PCS (optional) for IBM PC/AT compatible computer, or Serial Interface Cable IFC-200MC (optional) for Macintosh is required for serial connection.