The Cases: Is your Canon camera refusing to format the SD card? You may encounter various errors such as:
Canon says cannot format. Change card.
Resolution: Why is my Canon camera telling me to format my memory card? Does your Canon say the SD card is not formatted? Do you need to format the card with this camera?
Required: Remove the SD/CF card from the camera and insert it into a computer. If the SD/CF card is still readable on the computer, back up all images and videos from the SD card to the computer first. Then you can proceed directly to Fix #2.
As an image recovery utility, iCare Recovery Pro can recover data from a damaged SD card when it is unable to format or is inaccessible.
You need to insert the SD card into a computer's card slot or use a card adapter. Simple steps for SD card recovery: download, install, select SD card, scan, and recover data.
If there are no important images or videos on the memory card, you may skip this step and go directly to Fix #2.
It may seem strange, but it might work to directly take some photos with the camera even when the Canon displays a "card not formatted" error. Even if you try to format the card with the camera, it may still report, "Cannot format. Change card." Just ignore the error and try taking pictures with the camera.
If this doesn't work, proceed to the next method.
Sometimes, a large SD card or CF card may not work on an older camera because it uses a different file system. This issue can often be resolved by using a smaller SD card. For example, a 32GB SanDisk SD card may work. Here is a story from a user who fixed the error this way.
If anyone encounters the message saying the card can't be formatted, it may be due to the large memory size of the card. I tried using a 64GB card in my Canon T1i, and it didn't work. I switched to a 32GB card, and it worked just fine.
If you want to use a larger SD card or CF card in your Canon digital camera, you may need to format its file system to FAT32/FAT and try again, which will be explained in Fix #4.
You can use the "right-click format" option in Windows Explorer, which will show you the available file system options.
Step 1: Insert the SD card into the computer. Open 'This PC' and right-click the SD card that appears.
Step 2: Select the 'Format' option, and a window will pop up.
Step 3: In this window, select a file system. Start with FAT32. If that doesn't work on the camera, come back and choose FAT instead. If that still doesn't work, try EXFAT or NTFS one by one until you find the file system that works.
If the previous methods don't work, try formatting the card with the 'Low Level Format' option selected in the Canon format card menu.
Note: Formatting the card in the camera will erase all data. Please back up or recover your data before proceeding.
Video - Repair a damaged SD card on a computer
Also read: How to fix SD card won't format, or 7 free SD card repair tools
Some Canon camera models that may encounter the "Card not formatted" or "Cannot format card" error include:
Question: What does "format card" mean on a Canon camera?
Answer: It's a logical error that occurs on the SD card, indicating that the card is not compatible with the Canon camera, which is why the camera prompts you to format the card.
Question: How do I format my SD card for my Canon camera? - 4 Ways
Answer: There are at least 4 easy ways to format an SD card for Canon cameras:
Question: Why won't my Canon Rebel format a 64GB SanDisk SD card?
Answer: There might be a conflict between the camera's file system and the SanDisk SD card, preventing it from formatting. Alternatively, the SD card may have write protection if it was used elsewhere before. You can try taking photos to see if images can be stored, or switch to a smaller SD card, like a 32GB card, to see if it works. You could also try changing the SD card's file system to FAT32 or FAT to find one that is compatible with the Canon camera.
Question: What should I do if my Canon camera cannot format a CF card?
If your Canon camera displays a "Cannot format, change card" error with a CF card, try using a smaller card to see if it works, or refer to the methods provided earlier on this page.
Also read: why does my canon camera say card not formatted
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