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Canon EOS1100D problems screen flickers and fails

Hi, my EOS1100D was not turning on, i left the card battery and lens off and reformatted the card and it then turns on. When you try to take a photograph, the shutter opens for a long time a few seconds then shuts and in the viewfinder it says Err. If you don't try to take a picture and scroll through the menu, it sticks and then the screen flickers and is like double vision, it then flickers to white screen and back. At this point no buttons do anything including the on/off. If you take the battery out and refit it then doesnt turn on unless you leave it for several minutes. Any ideas anyone?

Posted by Geoffrey Rose on

  • Larry Ng
    Larry Ng Jul 26, 2022

    only have that 11 year old battery?
    and expect it to work?
    never have just one battery, or when it fails
    the camera is now stuck in down time
    even and external recharge power pack for mine.
    so can use the cam and recharge the other.
    mine even turns on with now LENS. and get fog for viewer but the CCD works inside.
    batteries are the #1 weak point.
    besides dropped, soaked or full of sand.

    1200mAh 7.4V Lithium-Ion
    it is not charged or at 11 years it died and vast do a decade old.


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Just put it all back together. Together no particular order put the lens back on uh put the camera uh battery. And scan disk back in and then see if it fires.

Posted on Jul 26, 2022

  • Geoffrey Rose
    Geoffrey Rose Jul 26, 2022

    Basically the same happens each time more or less (once left for a period of time) I've tried a new battery too and formatted cards etc

  • Larry Ng
    Larry Ng Jul 26, 2022

    the battery must be charged first.
    it must be. lost the manual for the cam?
    get it read how to charge the battery.
    other than, that , it needs service so take it to a shop.


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Related Questions:


Looking for the manual


Eos110 dropped in sea water

This is not good, salt water is extremely corrosive and will destroy the camera in a matter of hours, I suggest pulling the memory card to save any photo's if possible and transfer contents to a computer.


Unfortunately, the Error 99 code is a catch-all code that means an UNKNOWN error has occurred. Because of this, it is difficult to pin down exactly what is causing the problem.

It could be a fault with either the camera (main circuit board, software, shutter mechanism etc.) or even the lens.

For starters, I would make sure that the lens electrical contacts are clean and the lens is mounted correctly and fully locked home. If you have a spare lens, try that also.

Next, I would reformat the memory card (do this in camera). If you have a spare memory card, try that also.

Check that the battery contacts are clean, and also the contacts of any external hardware such as vertical grips.

If none of these solve the problem, the only option left is to take it to a Canon service agent :-(

Hope this helps,


Camera Will not turn on

Pull the battery(s) out, pull the memory card out. With a compressed air can (for cleaning computers) blow out the battery compartment and very carefully clean out the memory card slot... don't bend any tabs or pins..
Also blow out any other openings around the batt compartment door/latch area.
reinstall batts and card.... any luck? Any error code on the screen?

Err 99 in canon 350D

To isolate the cause of the issue, do the following: -
1. Turn off the camera.
2. Remove the lens, battery, and CF card.
3. Allow the camera to sit without power for approximately 20 minutes.
4. Insert only a fully charged battery, and turn on the camera.
5. Depress the shutter button as you would to take a picture.

Does the “ERR 99" message appear? If so, the camera may be faulty and requires a service. If it does not, then: -
1. Turn off the camera.
2. Insert the CF card.
3. Turn on the camera.
4. Format the CF card in the camera.
5. Depress the shutter button as you would to take a picture.

Does the “ERR 99" message appear? If so, then the CF card is faulty. Try a different card. If the message does not appear: -
1. Turn off the camera.
2. Clean the gold contacts on the lens by GENTLY rubbing them with a pencil eraser or soft cloth. Keeping the camera face pointing down, also clean the gold contacts on the camera, being careful that you do not let any debris fall into the camera body.
3. Reattach your lens.
4. Turn on the camera.
5. Depress the shutter button as you would to take a picture.

If the “ERR 99" message only appears when one particular lens is attached, then that lens should be examined by a service technician.
If you see the “ERR 99" with a different Canon lens attached, then the camera is faulty and should be serviced.

Memory card error - E50

Try formatting the memory card via a card reader connected to your PC. Use FAT32.

Constant flickering

This could be early signs of imminent failure of a defective CCD imager. If so, Canon should fix this for you for free, including free shipping both ways. This is regardless of your camera's warranty status. Please check the following two links for more info:

Applicable cameras include:
A40, A60, A70, A75, A80, A85, A95, A300, A310, S1 IS, S60, S200, S230, S330, S400, S410, S500, SD100, SD110, IXUS V2/300/400/430/500, IXY Digital 200a/300a/400/450/500

Camera freezing

try a new memory card. also try to reformat the memory card. dont take images you care about until resolved.
i would try to remove the battery for about 10 seconds, and then reinstall, then reformat the memory card. if you still have the same issues, replace the memory card. it that does not cure it, you have a warranty repair to manage.
good luck

Lcd flickers


the 400d has a sensor just below the optical view finder
it detects when you face is near the view finder and turns off the lcd scren

the display button (top left) can manually turn the lcd on/off

refer page 101 of the manual to modify this setting


Lens error

Lens mechanism has failed and a repair/replacement is the only solution-
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