topic Re: SD Card Corrupt in EOS DSLR & Mirrorless Cameras

EOS R10 SD Card Corrupt

GrantR — Tue, 15 Apr 2025 12:47:24 GMT

Good day,

I have a EOS R10. This is now the second time the SD card is corrupt.

First Card was SanDisk 16gb full size.

Second card was a Lexar 64gb full size.

Formatted card before use. Card was inserted properly. Took numerous photos. Whilst taking photos camera reported back that card is corrupt.

Have not had any of these issues with previous camera's, 60D, 70D, 80D, 77D. On on the R10, and its barely used.

Why would this be happening?

I really have no faith in the R10 now.

Re: SD Card Corrupt

Peter — Mon, 14 Apr 2025 09:08:55 GMT

Fast format or low evel format?

Re: SD Card Corrupt

GrantR — Mon, 14 Apr 2025 10:33:31 GMT

After the first card corruption I did a low level format. Shot maybe 1000 photos on the camera, and about 200 on this card. Just before using it, I did a standard format in the camera.

Re: SD Card Corrupt

Peter — Mon, 14 Apr 2025 11:19:56 GMT

Let me see if I understand everything right.

1. Fast format SanDisk. Corruption. Then low level format and still no corruption.

2. Fast format Lexar, 200 pictures and then corruption.

Is that right? If so, then continue to low level format. Especially if you have filled the cards. This due to the garbage collection that memory cards need to deal with.

Re: SD Card Corrupt

Stephen — Mon, 14 Apr 2025 17:28:08 GMT

Please contact support for one-on-one live troubleshooting. They will help you figure out what's going on. Support is available weekdays from 9 a.m. to 6 p.m. (ET) at 1-800-OK-CANON (800-652-2666).

Re: SD Card Corrupt

normadel — Tue, 15 Apr 2025 03:26:20 GMT

Do you have any cards that work perfectly? Have the cards you are using been around long time? Do they work in another camera?

SD cards CAN fail. At any time.

Re: SD Card Corrupt

GrantR — Tue, 15 Apr 2025 09:15:24 GMT

I am in South Africa. Will get the local details.

Re: SD Card Corrupt

GrantR — Tue, 15 Apr 2025 09:19:11 GMT

Cards all work fine in my 77D. When I do use the cards in another camera, I ensure I format them. All cards are fairly new. I understand that cards can fail. But to have 2 cards fail recently in the same camera, with very low use is really odd. I have not had any cards fail in any other camera that I have had.

Re: SD Card Corrupt

GrantR — Tue, 15 Apr 2025 09:22:26 GMT

No.
1. Format the sandisk card, used then went corrupt whilst in use. Have not used that same card again since.

2. Is pretty accurate.

I try to frequently clean the cards after use. Also, I am maybe using the camera once or twice a month.

Re: SD Card Corrupt

Waddizzle — Tue, 15 Apr 2025 12:45:07 GMT

“ Cards all work fine in my 77D. When I do use the cards in another camera, I ensure I format them. All cards are fairly new. I understand that cards can fail. But to have 2 cards fail recently in the same camera, with very low use is really odd. I have not had any cards fail in any other camera that I have had. “

I suggest that you stop swapping cards between cameras and purchase more cards that are dedicated to a specific camera body.

I would also retire the 16GB card.

Re: EOS R10 SD Card Corrupt

Alfred_P — Wed, 16 Apr 2025 03:20:49 GMT

The EOS R10 is supposed to be a solid mirrorless upgrade, so repeated SD card corruption is concerning. You can execute a Full Format (not just quick format) in-camera each time you reuse a card.

The chances are that if two different cards failed similarly, the issue could be with the R10’s card interface itself — potentially a hardware defect. Make sure the cards are UHS-I or UHS-II, as supported by the R10.