Question about Canon EOS 40D Digital Camera

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Serial number Replaced main logic board on Canon EOS 40D. EOSInfo now shows serial number as 0. How do I reassign the correct serial number?

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  • Canon Expert
  • 357 Answers

With newer Canons you have to run a software program to "initialize" the board when you replace it. The board comes blank, and you have to add the program and settings to run the camera. The software also allows you to replace the serial numbers, do exposure and auto focus adjustments etc. Canon does not sell this proprietary software. You would have to send the camera to Canon and they would charge you the set repair price. Wish I had better news. But try adding the latest firmware. I am not sure if the 40D is the cutoff for this or it started with the 50D. You have to do this with all current Canon models.

Posted on Mar 05, 2014

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Posted on Jan 02, 2017

cammedic
  • 667 Answers

SOURCE: EOS 40D, LCD Won't view only displays taken images and menu

here is Canon's answer;


Issue:
The LCD/Electronic Viewfinder will not display an image or the image is distorted.
Solution: If all troubleshooting steps have failed, please have your EOS 40D serviced.

Details: [ Hide ] Unfortunately, the issue you describe seems to indicate that your product requires repair service. Canon has excellent service options and we are eager to provide any assistance you may need. Links to the service options that are available for your product are listed below:
Request a Repair Online You can conveniently pre-arrange repair service with a Canon Factory Service Center through Canon's website. Find a Service Location Search to locate a repair service center and obtain further instructions. If you still have questions about the issue you are experiencing, a Technical Support Representative will be happy to answer any question you may have. You can contact us through the email link or phone numbers listed below.

  • Obtain Support by Email
  • For toll-free technical support, please call 1 (800) 828-4040 during regular business hours (currently Monday-Friday 8:00 a.m. - 12:00 midnight. EST, Saturday 10:00 a.m. - 8:00 p.m., excluding holidays).
  • Toll-free TDD Support Line for the Hearing Impaired is available Monday - Saturday (excluding holidays) at 1-866-251-3752
  • Technical Support is available for Customers in Canada at 1-800-OK-CANON
We look forward to helping you rectify the issue you are experiencing and are always available to provide any assistance you may need.

Posted on Apr 27, 2008

  • 1027 Answers

SOURCE: Canon EOS 40D aperature issue

Check the operators manual - you need to 'activate' the aperture control.

Posted on Jul 15, 2008

ctf1800
  • 4402 Answers

SOURCE: Canon EOS 40D

go to canon site and upload the new firmware

Posted on Aug 05, 2008

  • 20 Answers

SOURCE: canon eos 40D error 99

Check this link: www.richardsnotes.org/archives/2005/04/29/50mm-lens-contact-points/

Posted on Nov 28, 2008

  • 2 Answers

SOURCE: Canon 40D not firing

Try doing a reset in the camera tools somewhere, this fixed a similar problem I had.

Posted on Feb 06, 2009

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1 Answer

Is the canon eos 40d,the same as the canon 40d,if not whats the difference,can you answer please


They are the same thing. There is only one Canon EOS 40D. If you've seen it listed differently it's just that they've left out the EOS prefix. All Canon DSLR cameras are named EOS.

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Your Highlight Tone Priority is turned ON. Once ON, all your zeros will be replaced by the letter 'o' to remind you that it is ON. If I remember correctly, the ISO range is limited too.

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Check this link: www.richardsnotes.org/archives/2005/04/29/50mm-lens-contact-points/

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Sounds like you are stuck sending it off for repair. I know no other way.

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You are quite correct!!! RAW only works in any of the creative/manual modes.

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check this site for specs. I believe that the Canon 40d will.
http://dpreview.com/

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Your 40D requires that you use an ETTL-II type flash like the Canon 380-EX. What flash are you using?

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