Inserting and formatting memory cards: try it yourself

Only do the formatting part with a card whose photographs have already been copied somewhere safe. If you are not certain, stop before formatting.

1. Identify the card

Remove the card only after switching the camera off and waiting for any access light to stop. Read the type and capacity printed on it, then check that this type is supported by your camera.

2. Reinsert it without force

Use the orientation diagram beside the slot. The card should seat with gentle pressure. If it does not, remove it and check the direction rather than pushing harder.

3. Find the format command

With the card inserted, locate Format in your camera menu or manual. Read the warning on screen. Do not confirm it yet unless you know the card can be erased.

4. Format a safe card

If the card contains nothing you need, or everything has been backed up and checked, format it in the camera. Take one test photograph afterwards and confirm that it can be reviewed normally.

If you see an error

Do not repeatedly format or continue shooting if a card behaves unreliably. Try a known-good compatible card. Important photographs on a failing card may need recovery before you do anything destructive.