Question about Canon PowerShot S400 / IXUS 400 Digital Camera

2 Answers

Memory card error

I can take pictures, and then sometimes it shows up as "memory card error." When this happens all my pictures are lost. I can turn it off and then back on and sometimes the pictures come back. Sometimes I have to turn it on and off a few times to get the "error" message to go away. I've bought new memory cards, but that didn't make any difference.

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  • switchca Nov 15, 2007

    i take pictures with ny camera and i could view them on the preview window but when i connect the camera to te computer the pictures i just took don't show up, why??

  • Anonymous Mar 15, 2008

    Card error appears on screen. I Can't erease it

  • Anonymous Apr 11, 2008

    I have the same problem.

  • Bonduuu Jul 27, 2008

    i have the exact same problem!!! i live in the north west.what should i do??

  • aaliyah7867 Sep 09, 2008


    I have the same problem with my canon digital ixus 400. The camera says memory card error each time it is switched on. At first, I used to be able to switch it off and then it would come back on as normal, but I would lose all the pictures on the card. Now, I cannot take pictures due to the re-occurance of the message. I have tried various cards, and have formatted them on the PC and camera but no luck.

    Any ideas on how to sort this problem without having to pay for repairs?




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1 set date to 31-12-2030 23h59 and switch camera off.
2 wait two minutes, day will be 01-01-2003 and camera asks you to set the date
3 take away memory card
4 set the date to today
5 insert memory card again
Now your error should be solved.
Sucess, Jonny

Posted on Sep 09, 2008

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Hi greenstina - I had the same problem on my PowerShot S400 as well as I couldn't reformat the compact flash when using the feature on the camera. The solution that worked for me was reseating a small battery (about the size of a watch battery) in side the camera. To get to it you have to take the case apart.
I found this solution by googling and typing:
powershot S400 E50 error
I'm not sure if this site will allow me to add the web link - but this link had a picture of the camera and where the battery is located.

It fixed my problem, but I do not know if this is a permanent fix. There seem to be a lot of complaints about this problem though.

Good luck.

Posted on Nov 24, 2007

  • engrgirl Nov 24, 2007

    Hi greenstina - ***UPDATE *** I also went to Canon's website and there is a service notice for this problem as well, so if you don't feel comfortable with manually doing anything to your camera I suggest you contact them.

    Here was the link I found:

    If the link doesn't work here is what they say:

    A CF Card communication problem has occurred
    in some PowerShot S400 Digital Cameras. We would like to convey the
    details and our service policy.

    When communication problems with CF cards occur in the this product, the following messages are displayed during use:

    • "Memory Card Error"

    • "Corrupted Data"

    • "Unidentified Image"

    • "E50"

    • "E51"

    The display of such a message, however, does not necessarily
    indicate the existence of the CF Card communication problem that has
    been identified.

    If it is determined by Canon USA that your PowerShot S400 camera is
    exhibiting the CF Card communication problem that has been identified,
    the camera will be repaired free of charge, regardless of whether the
    camera is still under warranty. In addition, a refund of a previously
    paid repair will be made if it is determined by Canon USA that the
    repair of your PowerShot S400 was prompted by the CF Card communication
    problem that has been identified.

    We have implemented a plan to assist those of our customers whose
    S400 cameras have exhibited the CF Card communication problem that has
    been identified. Repair service will be performed free of charge. U.S.
    residents are asked to contact the Canon Customer Support Center for
    assistance at 1-800-828-4040.

    Support hours are Monday through Friday, 8:00AM to 12:00 midnight;
    and Saturday, 10:00AM to 8:00PM (all times EST). Alternatively, if
    electronic support is preferred, please send your e-mail to .

    This information is for residents of the United States of America
    and Puerto Rico only. If you do not reside in the USA or Puerto Rico,
    please contact the Canon Customer Support Center in your region.

    We sincerely apologize for any inconvenience caused by this issue,
    and appreciate your understanding in this matter. Thank you for your
    support and patronage of Canon Products.



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