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Memory Card Errors and Solutions on Canon Camera - Ultimate Guide

Wondershare Recoverit Authors

Sep 15, 2023 • Filed to: Photo/Video/Audio Solutions • Proven solutions

Are you experiencing a memory card error on your Canon camera? If so, you've come to the right place for a comprehensive guide on how to resolve this common issue.

Canon cameras are known for their reliability and widespread usage around the globe, but occasionally, users may encounter unpredictable memory card errors. Don't fret, as we have compiled an extensive list of the most frequently encountered Canon memory card errors and their corresponding solutions to help you get back to capturing stunning photos in no time. Let's dive into the world of memory card error Canon solutions and ensure your camera is functioning at its best!

Part 1 How to Fix Canon Memory Card Errors?

A lot of times while working on Canon cameras, users get unwanted errors. There could be a hardware or a software reason behind these common issues. While some of them can be related to your memory card, others can be triggered by something else. Here are some of these common Canon errors with their quick solutions.

1. Err 02

Users mostly get the Err 02 displayed on their camera screen when there is an issue with the memory card. Ideally, the camera is not able to read the memory card or access its stored information. Here are some ways to fix this memory card error on Canon.

  • Turn off the camera and eject the memory card from it. Wait for a while and insert it once again. Restart the camera after inserting the memory card.
  • Make sure that the memory card you are using is compatible with your Canon camera.
  • If nothing else works, then format the memory card. You can do it by visiting your camera’s settings. Also, you can attach it to your computer and do a quick format as well.
Canon Camera Err 02
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2. Err 03

The Err 03 usually happens when there are multiple folders and sub-folders in your memory card. This confuses the camera as its software can’t access the default folder to save the photos.

  • Simply connect your card to your computer and arrange the folders properly. Get rid of unwanted folders and make sure that there is only one root folder (like DCIM).
  • You can also take a backup of your photos, format the memory card, and reinsert it to your Canon.
Canon Camera Error 03

3. Err 04

We get the Err 04 on our Canon camera when the memory card storage becomes full. This means, the camera is not able to save the new photos and is running out of space. Thankfully, it can easily be fixed in the following way.

Canon Error 04

  • Insert your memory card into the system and transfer some of the photos to a safe location. This will make more space on the card.
  • If you are not able to delete the contents of a memory card, then make sure it is not locked. The left slide should be up (and not down). If the lid is up, then it means the card is unlocked and its photos can be deleted.
Canon Camera Err 04

4. Err 10

The Err 10 on a Canon camera occurs when there is an issue with the file system of the memory card. There could be a software-related issue with it as well.

5. Err 99

This is one of the most commonly faced Canon camera errors. It displays a message that shooting is not possible, which can happen due to a corrupt Canon camera, a software or hardware problem, a contact issue between the lens and the body, defective storage, or anything else. Here’s how you can fix it.

Canon Error 99

  • Make sure that the shutter is not dirty by quickly cleaning it.
  • Turn off the camera and remove its battery. Wait for a while, install the batteries, and turn it on.
  • Remove the memory card and insert it again after a while.
  • Use a dry cloth and clean the lens as well as the electric contacts carefully.
Canon Camera Error 99

 Part 2: How to Fix Specific Memory Card Problems on Canon Camera

Besides the above-listed memory card errors on Canon, users can encounter some specific problems as well. For instance, your attached memory card can be inaccessible or even be corrupt. The good thing is that most of these problems can easily be resolved. Here are some of these common memory card errors related to Canon cameras with their easy fix.

Problem 1: Photos & Videos Are Inaccessible

Too many times, the photos and videos stored on the memory card become inaccessible. That is, users are not able to view them or even transfer them to another location. If ignored, this can lead to a permanent loss of data.


There could be different reasons behind this. The attached memory card could have been corrupted by a virus attack. It can be physically damaged or the file system could have been tampered with as well.


Firstly, unmount the card from the camera and attach it to your computer. Check if you can retrieve the photos or videos stored on your computer.

If not, use a dedicated data recovery software like Recoverit Photo Recovery. This will help you retrieve the inaccessible photos and videos of different formats from your memory card.

Problem 2: Memory Card Can't Be Read

A Canon camera can’t always read all kinds of memory cards. If you have attached a corrupt, non-compatible, or damaged memory card, then you might encounter this issue. If the card can’t be read, then the camera won’t be able to store your photos.


A corrupt memory card is one of the major reasons for this. Also, if the card is not compatible or runs on a non-supported file system, then it can lead to this problem.


  • Unmount the memory card from the camera and insert it again.
  • Connect it to a computer and scan the card with an anti-virus tool to remove any malware.
  • Make sure the card is compatible with your Canon camera.
  • Be sure that the card is inserted properly.
  • Format the card by inserting it on your computer and attach it to your camera again.

Problem 3: Slow Speed while Transferring Data

Sometimes, while transferring data from one source to another, users face unwanted lags. The processing speed of your card or camera could be affecting this.


This mostly happens when the memory card has no free space. Also, an old non-compatible card can be a reason behind this.


  • Get rid of the old photographs and videos from the card that you no longer need.
  • Transfer some photos to your system and make space for the new data.
  • If possible, format the memory card.
  • Reset the camera by removing its batteries and attaching them once again.
  • Make sure that the file system of the memory card is compatible with Canon.
  • The card should not be affected by malware. If it is, then format it or scan it using an anti-virus.

Problem 4: Memory Card Is Locked

Almost all the memory cards have a write protection switch at the top left corner. When it is turned on, it prevents us from making any modifications to the card. Therefore, if the memory card (or even the card slot) is locked, then you won’t be able to delete/modify its content.


To resolve this memory card error on Canon, simply unmount the card from the camera first. Now, check the position of the lid. If it is up, then it means the card is unlocked. If the lid is down, then the card would be locked.

Simply turn it up to unlock the card and connect it to your camera again.

Canon Camera memory card error

Problem 5: Photos & Videos Are Lost

While the situation might seem like a nightmare, chances are that you might end up losing your stored photos or videos out of the blue. In this, users are not able to access their stored photos/videos anymore.


There could be different reasons for unexpected data loss. Accidental deletion, corrupt card, software issue, formatting of data, malware attack, change in file systems, etc. are some common reasons.


Take the assistance of a data recovery tool as fast as possible. Simply unmount the card and connect it to your system. Run a scan using the Recoverit Photo Recovery tool. It will scan your memory card and help you access the lost photos/videos from it.

Part 3 How to Recover Inaccessible or Lost Data from Canon Camera

If you have lost some (or all) of your photos/videos from your Canon camera, then you should use a data recovery tool. A good recovery software will be able to retrieve all kinds of lost and inaccessible data from the SD card.

1. Recoverit Photo Recovery - Best Canon Photo Recovery Tool

Out of all recovery software out there, Recoverit Photo Recovery is a recommended option. This is because the tool is extremely easy to use and has the highest success rate in the industry. It can help you get back all kinds of saved photos (even raw images) from your Canon camera. Anyone can recover their lost and deleted photos since it is extremely easy to use.

2. Video Tutorial on Photos and Videos Recovery from Memory Card

Recent Videos from Recoverit

View More >

2. How to Recover Camera Photos and Videos

Recoverit Photo Recovery is compatible with Windows as well as Mac. Here’s how you can recover your photos from Canon using Recoverit for Windows. Mac users can turn to the page: How to Recover Deleted Files from an Formatted SD Card on Mac.

Step 1: Select a location

1Firstly, the software lists all detected data storage devices for you. So please unmount your memory card from your Canon camera and connect it to your computer in advance.

2Now, just choose the location (drive) where you wish to perform the recovery operation and start the process.

select Canon camera sd card

Step 2: Scan the camera SD card

Your Canon camera memory card will be scanned thoroughly to search for all your lost photos and videos. We also offer a deep scan mode in case you need it.

Canon camera recovery

Step 3: Preview and recover data

Once the scan is done, you can preview the retrieved photos. Select the photos of your choice and recover them to a safe place by hitting on the "Recover" button.

Canon camera photo recovery


Part 4 How to Maintain Your Canon Camera Memory Card

If you want to make your memory card more durable and avoid any unwanted memory card error on Canon, then consider following these suggestions.

  • Make sure that you only use a compatible memory card. That is, the memory card should be supported by the camera and should not exceed its supported storage capacity.
  • Try not to make the storage cumbersome. Have one root directory and then store photos in different folders.
  • Format your card every once in a while (like every 4-6 months). Just make sure that you take a backup of your data beforehand.
  • Insert and unmount the memory card safely. Turn off the camera before you take out the memory card.
  • Don’t use the memory card with too many devices at once. That is, avoid shuffling it between your phone and camera. Maintain a dedicated card for your camera to increase its lifespan.

Closing Words

In conclusion, by utilizing the information provided in this comprehensive guide, you can effectively tackle and resolve the most common Canon memory card errors. Our aim is to equip you with a diverse set of solutions to ensure that you can overcome any major memory card error that may arise with your Canon camera.

To safeguard against unexpected data loss and further enhance your experience, consider using Recoverit Photo Recovery. This user-friendly and reliable photo recovery solution will quickly become your go-to tool for preserving your cherished memories, even in the face of a memory card error on your Canon device.

What about corrupted videos and photos due to camera and memory card errors? Here are what you need: How to repair damaged videos.

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