Symptoms
- Error saying card can't be read or is not formatted
- Camera won't recognize the card at all
- Photos won't save or playback shows errors
- Card works in the camera sometimes but not always
Likely causes
- CommonCard not fully inserted or seatedA loose card can cause intermittent read errors.
- CommonCard needs to be formatted in this specific cameraCards formatted in a computer or a different camera can trigger errors.
- PossibleCard's write-protect switch is enabledSD cards have a small physical lock switch that blocks writing.
- PossibleCard is failing or reaching end of lifeMemory cards wear out after many write cycles.
- Less commonCamera's card slot or contacts are dirty or damagedWould cause errors with any card inserted.
What to do
- Power off the camera, remove the card, and reinsert it firmly until it clicks.
- Check the small write-protect switch on the side of the SD card and make sure it's unlocked.
- Try a different memory card to see if the error follows the card or the camera.
- If you have important photos, copy them off the card with a card reader before formatting.
- Format the card in-camera through the camera's menu, not on a computer.
- Inspect the camera's card slot contacts for dust or bent pins.
- If the same card fails in another camera too, the card itself needs replacing; if all cards fail in this camera, the slot may need repair.
Tools and parts
- Card reader (for backing up files)
Replacement SD or memory cardSearch: “high speed SD memory card for [camera model]”
When to call a pro
If a new memory card also fails to be recognized, have the camera's card slot checked by a repair shop.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.