EOS M10 "Memory Card Error" & Corrupted Files – Found a Bent Pin in the SD Slot.

[kitadi]

Hi everyone,

I'm hoping to get some advice from anyone who has dealt with this hardware issue before. I have a Canon EOS M10 that I bought back in 2018, and it recently started acting up.

• Suddenly started displaying a "Memory card error" on the screen.

• When it didn't throw the error, the camera would occasionally shoot, but the files would end up completely corrupted (half-gray boxes, unopenable, etc.).

At first, I thought my SD card had just died of old age. However, after troubleshooting, I took a flashlight and looked closely inside the camera's SD card slot. Unfortunately, the problem is physical: one of the gold pins inside the card reader is bent completely flat.

I've attached a macro photo I took of the slot so you can see the damage. 

Because the pin is bent, it's obviously not making a stable electrical connection with the SD card, which explains both the errors and the corrupted image files. I know better than to stick tweezers in there and try to bend it back myself, as I've read those pins are incredibly brittle and will just snap off.

[Stephen]

Hi there!

Based on the photo, here are the main components inside the SD card slot and what it appears their condition is (this is not a technician evaluation or an official diagnosis):

Identified Mechanisms

• Data & Power Contact Pins (Center/Right): The row of parallel metal fingers across the middle-right. These align with and press against the copper contacts on the back of the SD card to transfer data and supply power.
• Write-Protect & Card-Detect Leaf Switches (Far Left): Spring-loaded flexible metal strips located along the side wall. These act as mechanical switches: one detects when a card is physically inserted, and the other checks the position of the physical "Lock" slider on standard SD cards.
• Frame & Guide Rails (Top and Bottom): The housing that holds the card aligned while guiding it onto the contacts.

---

Does it look normal?

No, it does not look normal.

• Bent Leaf Spring/Pin on the Left: The metallic contact on the far-left side is visibly twisted, bent upward, and displaced out of its designated track or resting channel.
• Expected vs. Actual: In a fully functional slot, these side switches lie flush within their recessed side channels. A bent pin like this typically occurs when a micro-SD adapter, a damaged card, or an object inserted at an angle catches the spring edge and pulls it out.

Likely Symptoms & Impact

• "Card Locked" / "Write Protected" Errors: If the write-protect leaf switch cannot make proper mechanical contact, the camera or device will assume every inserted card is write-protected.
• "No Card" Error: If the card-detection circuit remains open due to the bent pin, the device won't register that a card is present.
• Physical Jamming: Inserting a card against a bent metal contact can bend it further, snap it off, or short out adjacent electrical contacts.
  
  Below is an AI generated rendering:

[jrhoffman75]

According to Internet search, Canon ended repair support for that camera in September 2024. You could always contact Canon support for most current answer - 1-800-OK-CANON. You could also ask Canon about Loyalty Program upgrade.

You might be able to find an independent repair shop to fix it. MPB has three available for ~$350 or less, as a comparison to repair cost.

Depending on how many lenses you have you may want to consider this as the opportunity to switch to the R-series. EOS R50 would be a good transition body.

[ebiggs1]

" I know better than to stick tweezers in there and try to bend it back myself, as I've read those pins are incredibly brittle and will just snap off."

This a I agree with that and is likely to happen but at this point what have you got to lose? Right now you are looking at a repair and if you snap it off you are looking at a repair. if you get lucky put the SD in and leave it in. Don't remove it again.