Canon Posts EOS 20D Firmware Update

After reading reports of troubles with the previously released v1.0.4 firmware update I decided to hold off announcing it here until the problems were fixed. Today, Canon Japan has released the EOS 20D v1.0.5 firmware update that fixes the following:
  • Version 1.0.4 firmware released on October 4 had a bug in the program that handles the update. In cases where the update was performed with a lens attached to the camera, there were situations in which the firmware could not be updated correctly. The version 1.0.5 firmware fixes the version 1.0.4 bug so that the firmware can be updated correctly.
  • Fixes the problem of shutter release not working. In rare cases, the camera freezes and the shutter stops working if a lens removed or attached while the camera is in auto power off mode. (In other cases, the camera might hang up during continuous shooting.) - This problem has been fixed.
  • Improves reliability when using some CF cards. Improved reliability of communication with CF cards

Canon has also posted the following information: "When the firmware update operations are finished, turn the camera off and remove battery from the camera for at least two seconds. This will cause the new firmware to effect after the battery has been reloaded and the camera is turned on. When performing the firmware update operations, do so after removing the lens from the camera."