Pro 90 dead with E24 error

[b10n1c]

I have been using my Pro 90 for about 2 months without problems. Great camera.

Today I took some photos. I reviewed them and deleted a few. I switched it off and when I turned it on again I get E24 on the LCD - no other response from the camera. I removed the main and the button batteries for a while. I also used mains power. Still same E24 error.

Any suggestions other than send it away for repair?

[digitalain]

From Canon web site:
The "E xx" errors (where xx stands for a two digit number, e.g. 05) are coded into the hardware of the camera itself. These codes provide qualified service technicians with the information to determine which component or circuit has failed or is operating incorrectly.

Occasionally, the error detected may be an isolated or intermittent instance. To check this, remove and reinsert the battery to see if the error code will reset. Also, since some error codes refer to the ability to read the information on the CF card, you may try a different CF card or reformat the CF card. Note: Reformatting the card permanently removes all images stored on the card.

Generally speaking, there is nothing the owner can do to correct the problem other than to send the camera to the appropriate Factory Service Center for correction of the error.