SD Card
Camera Says Card Cannot Be Accessed
Remove the card and scan it before recording again.
Camera access errors often appear before a computer format prompt. The safest response is to remove the card and avoid any in-camera repair or format action. Battery depletion during recording is one of the most common triggers for this error message.
First: do not make the source worse
Treat this as a recovery situation before you treat it as a repair task. The priority is to preserve readable data and avoid new writes to the affected device.
- Do not format the card in the camera when it reports an access error.
- Do not accept the camera "repair card" or "rebuild database" option.
- Do not keep testing the card across different cameras.
- Do not save recovered files back onto the same card.
Scan and preview first
Refindo can scan the card through a reader when the computer detects it, letting you preview files before recovery.
Likely causes
- Interrupted photo or video writes.
- Card file system damage after battery loss or removal while recording.
- Incompatible format between camera models or devices.
- Card wear, bad contacts, or reader instability.
Read-only recovery workflow
- Remove the card from the camera and stop powering it through the camera.
- Insert the card in a reliable reader and open Refindo to select it.
- Run Quick Scan, then Deep Scan if photo or video writes were interrupted.
- Preview recoverable media and save it to your computer or another drive.
When to stop self-recovery
- The card disconnects during the scan or reports the wrong capacity.
- The card holds the only copy of irreplaceable photos or footage.
- In-camera repair or a format has already been applied to the card.
- The card contacts or reader are damaged or unstable.
Related recovery guides
What You Need to Know
In-Camera Repair vs Computer Recovery
Some cameras offer a "repair card" or "recover image database" option. These routines rebuild directory indexes but may overwrite or discard orphaned file entries in the process. Computer-based recovery tools read the card in read-only mode and reconstruct files from raw data, preserving more content. Always prefer scanning from a computer before accepting any in-camera repair.
Battery Depletion During Recording
When a camera battery dies mid-recording, the camera cannot finalize the current video file or flush buffered metadata. The card is left with an incomplete directory entry and a truncated video container. On next power-up the camera detects the inconsistency and reports the card as inaccessible. Keeping batteries above 20% and using dual-battery grips reduces this risk significantly.
Frequently Asked Questions
Should I format the card in the camera?
No. In-camera format writes new file system records and can reduce recovery chances.
Should I keep trying the card in different cameras?
Avoid repeated writes or repair prompts. Use a card reader and scan from a computer.
Can RAW photos be recovered?
Often, yes, when the card is readable and the photo data has not been overwritten.
Does the camera repair option recover lost photos?
Not reliably. In-camera repair rebuilds directory structures but may skip or overwrite orphaned files. Use a computer-based scan for thorough recovery.
Can I recover video that was recording when the battery died?
Partially. The video data written before the power loss is often recoverable, but the final seconds may be missing because the container was never closed.