Fix Cluster Size Wrong Please Format on SD Card

Cici updated on Apr 01, 2025 to Disk Management Questions Answered | How-to Articles

I get this 'Cluster size wrong. Please format' error message when I turn on my Uniden DCam. This happened five days ago. I don't want to format it. Is there anyone to fix this error without formatting my SD card?

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The "Cluster Size Wrong. Please Format" error typically occurs when an SD card or external storage device is used in a camera that requires a specific cluster size that does not match the card's current configuration. Below are the possible reasons:

  • Incompatible Cluster Size: The device may require a specific cluster size (e.g., 32KB) that differs from what is currently set on the SD card.
  • Previous Use in Different Devices: If the SD card has been formatted or used in multiple devices, it may not be compatible with the current device's requirements.
  • File System Issues: The SD card may be formatted with a file system that the device cannot recognize, leading to an error message.

Don't worry. EaseUS Partition Master Professional can help you reset the correct Cluster Size on the SD card without formatting. By following the steps below, you can resolve the "Cluster Size Wrong. Please Format" error and restore functionality to their SD cards without data loss:

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Step 1: To modify the cluster size of a partition, right-click on it, choose "Advanced," then click "Change Cluster Size."

Step 2: Select the required cluster size for the disk partition by clicking the size list beneath the New size section, then click "OK."

Step 3: Select "Execute 1 Task(s)" and then "Apply" to validate the action.

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