Error code 22

Looked up on Canon.es and this is what I found.
FAQ: What does the error code 'Exx'?

FAQ ID: 44574
Last Modified: 22-Jan-09

Cause

Answer:

When an error occurs the camera will display an error code like "Exx", where "x" represent numbers.

See the list items at the bottom of this page when it shows following error codes.

"E18" error of the target unit / lens barrel
"E30" and "E50" error of the CF or SD card

When an error code "Exx" different from those already mentioned, the camera off and then turn to try to capture or play back images.

If this error persists or an error code appears often, there was a malfunction of the camera.

Note the error code and contact the retailer where you purchased the camera or the nearest service center for Canon.
I hope this helps

Digital Camera: How to Fix Compact Flash Memory Cards ErrorIt is not very typical for compact flash memory cards to give you an error. If you do receive an error, it most likely means that a pin within your CF card slot is bent, or your CF card has become corrupted. Unfortunately, if your CF card has become corrupted, you will need to reformat the memory card, which means that you may lose any pictures that were located on the card.
Fixing Your Flash Memory Card

You will want to remove your CF card and the batteries. Take a look inside the CF card slot to see if there is a bent pin. If you find a bent pin, you can correct this problem using a very small and skinny flat screwdriver. Moving very slowly, use the screwdriver to bend the pin back into place. You do not want to use enough force to make the pin back in one shot.
The pin does not have to be perfectly straight, but get it as close to straight as possible. Insert your CF card back into the slow very slowly. You should see the in align itself with the card. You can turn your digital camera on to verify that the compact flash memory card is now working.

How to Fix a Code 22 Error

1. Enable the device. Since the most common reason you'll see a Code 22 error in Device Manager is because the device has been manually disabled, try manually enabling it.
   
   Most of the time this will fix a Code 22 issue. Don't worry if it doesn't, however. All that means is that the Code 22 you're seeing was caused by something a bit less common.
   

1. Restart your computer if you haven't already.
   
   There's always the chance that the error Code 22 you're seeing on a device was caused by a temporary problem with the hardware. If so, a restart of your computer might be all you need to fix the Code 22 error.
   
2. Did you install a device or make a change in Device Manager just before the Code 22 error appeared? If so, it's highly likely that the change you made caused the Code 22 error.
   
   Undo the change if you can, restart your PC, and then check again for the Code 22 error.
   
   Depending on the changes you made, some solutions might include:
   
   • Remove or reconfigure the newly installed device.
   • Roll back the driver to a version prior to your update.
   • Use System Restore to undo recent Device Manager related changes.

1. Reinstall the drivers for the device. Uninstalling and then reinstalling the drivers for the device is one possible solution to a Code 22 error.
   
   Important: If a USB device is generating the Code 22 error, uninstall every device under the Universal Serial Bus controllers hardware category in Device Manager as part of the driver reinstall. This includes any USB Mass Storage Device, USB Host Controller, and USB Root Hub.
   
   Note: Correctly reinstalling a driver, as in the instructions linked above, is not the same as simply updating a driver. A full driver reinstall involves completely removing the currently installed driver and then letting Windows install it over again from scratch.
   
2. Update the drivers for the device. It's also possible that installing the latest drivers for the device could correct the Code 22 error.
   
   If updating the drivers does remove the Code 22 error, it means that the stored Windows drivers you reinstalled in the previous step were either damaged or were the wrong drivers.
   
3. Clear CMOS. If Windows had to disable the device, generating the Code 22 error due to a lack of system resources, clearing CMOS might fix the problem.
   
4. Update BIOS. Another possibility is that a newer BIOS version could better pass system resource handling to Windows, correcting the Code 22 error.
   

1. Move the device to a different expansion slot on the motherboard, assuming of course that the piece of hardware with the Code 22 error is an expansion card of some kind.
   
   If the Code 22 error is due to a lack of system resources available for the card, moving it to a different slot on the motherboard could clear up the problem. This isn't as common a situation with newer hardware and Windows versions but it is possible and is an easy troubleshooting step to try.
   
2. Replace the hardware. A problem with the device itself might be the root cause of the Code 22 error, in which case replacing the hardware is the next logical step.
   
   While not likely, another possibility is that the device is incompatible with your version of Windows. You can always check the Windows HCL to be sure.
   
   Note: If you're positive that the hardware is working properly and is properly configured then you might consider a repair install of Windows. If that doesn't work, try a clean install of Windows. I don't recommend doing either before you replace the hardware, but you may have to give them a try if you're out of other options.

Please let me know if you've fixed a Code 22 error in a way I haven't mentioned above. I'd like to keep this page as accurate as possible.

What Does the Code 22 Error Apply to?

The Code 22 error could apply to any hardware device managed by Device Manager.
Any of Microsoft's operating systems could experience a Code 22 Device Manager error including Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and more.

Still Having Code 22 Issues in Device Manager?

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more.
Be sure to let me know that the exact error you're receiving is the Code 22 error in Device Manager. Also, please let us know what steps you've already taken to try to fix the problem.
Show Full Article

• How To Disable a Device in Device Manager in Windows XP
• How Do I Enable a Device in Device Manager in Windows?
• How To Disable a Device in Device Manager in Windows 7
• How to Use Device Manager to View the Status of Hardware in Windows

hi,

The "E50" error code indicates formatting a storage card has failed.I think the e50 error code happens when the camera is reading and/or writing to the CF card when the battery are dead or real low. The camera does not get to finish writing data and leaves an error on the CF card. Use new battery or fully charged battery. I hope this may help you,

regards,
kaybicks

error 99 can most times be remedied by taking a standard pencil eraser and carefully cleaning the gold contacts at the back of the lens and the gold maching contacts in the lens opening of the camera... BE CAREFUL not to let eraser crumbs into your camera... keep it clean... reset the battery and give it a whirl.... did it solve the 99 issue?
for the CF it refers to the cf card... here's what I've found on this:
Canon reports that this error code may appear on your digital camera’s LCD (liquid-crystal display) when there is an error reading from or writing to the inserted CF (CompactFlash) card. This error code occurs most often after a user has tried to eject a CF card before the camera has finished writing data to the card.Solution:
Canon suggests that you first try to use a different CF card. If you do not see the error message when you use the new CF card, the first card is probably damaged.

Before you take the next step, drag the files from the CF card to a location on your hard drive to back up the files. Next, you can use Windows’ ScanDisk utility to check the CF card for errors. If you use a Mac, you can use Disk Utility (in Applications\Utilities\) in OS X.

If ScanDisk or Disk Utility fails to resolve the CF card problem, insert the CF card in your camera again. Then format the CF card. On most Canon cameras, you can do this by pressing the Menu button, selecting the Format tab, highlighting Format, selecting Format, and choosing Yes. Make sure you have backed up the data on the card before you do this. Formatting the card will delete the images from the card. After you format the card in your camera, use ScanDisk or Disk Utility to check the CF card again. If you still encounter errors while using ScanDisk or Disk Utility, you should discard the CF card because it is damaged.

If the error still occurs after following the steps above, your camera may need repair. Contact Canon’s technical support for further assistance.

hope this solves your issues....
let me know
K

I Googled the error code you're getting, and found a list of things to try and steps to attempt directly from Canon. Try out some of the stuff below, it should help.

To isolate the cause of the issue, we suggest that you 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 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 it does, then the camera should be serviced. If it does not, then please proceed to the next set of steps:
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 the most
likely source of the issue. Try using a different card.
If the message does not appear, please complete the following steps:
1. Turn off the camera.
2. Clean the lens contacts by gently rubbing them with a pencil eraser
or soft cloth. Be 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 should be serviced.

CF means that it can't read the compact flash socket on the side. I had a similar problem on one of my bodies. I would try either a different (new or one that hasn't been in the body) with a freshly charged battery. If this doesn't help, you can only send it in for diagnostics and repair

I don't have a 350D, and don't have a list of codes but I would guess the error code refers to the Compact Flash card. In the instructions to my camera, a 400D, the solution is to remove and reinstall the card, if there is still a problem, you might have to format the card. Hopefully this will help!

According to Canon, Error code 02 means that "There is a problem with the CF card. Try any of the following: Remove and re-insert the CF card. Format the CF card, use a different CF card."

Are both CF cards the same brand? Sometimes some brands have conflicts with the camera, you might try using two different brands.

It may not be the card, did you try on the third attempt to remove the battery and put it back in? There may be a problem with the contact points where the CF card plugs into the camera, or in the transfer system itself.

Error Code "E50" (CF card formatting error) When a camera error occurs, an error code like "Exx" will be displayed, where the x's represent numbers. The "E50" error code indicates formatting a CF card has failed. Solution To clear the "E50" error, try performing the following procedure. 1. Try using another CF card. If you have another CF card, try loading it in the camera. If the error code is not displayed when the other CF card is loaded, there may be something wrong with the first one rather than with the camera. 2. Use your computer's ScanDisk utility to check the CF card for errors. Use ScanDisk to check the CF card for card error or card failure. Refer to the instruction manual for your operating system or Windows Help for further instructions. (If you are using a Macintosh, use the "Disk First Aid" program to check for card error or card failure. Refer to the instruction manual for your Macintosh OS for further information.) Be sure to back up the data on the CF card on the computer before you check the CF card. If a card error or card failure occurs when you use your computer's ScanDisk, there is something wrong with the CF card. Follow ScanDisk's on-screen instructions to solve the problem. If the same error occurs when you are using the CF card supplied with the camera, please contact the retailer where you purchased the camera or the nearest Canon service center. If the error code is displayed right after you took a picture, the image may not have been recorded. Switch the camera to playback mode to check if it was recorded. Precautions for handling a CF card: - Do not remove a CF card or disconnect the camera's power source while the camera is recording, loading, or erasing data on a CF card. - CF cards are high-precision electronic devices. Do not bend, force, or subject them to shocks or vibration. - Do not attempt to disassemble or alter a CF card. - Place the CF card in the supplied case for storage. - Moving a CF card rapidly between temperature extremes may cause condensation in the card, leading to potential malfunctions. To avoid condensation, place the CF card in a sealed plastic bag before moving it into a different temperature area and allow it to adjust slowly to the new temperature. If condensation forms on the CF card, put it aside until the water droplets have evaporated completely. - Do not use or store CF cards in the locations subject to dust or sand, high humidity, or high temperatures.