Plugging in the SD card into your PC to find out it is not getting detected could be the worst nightmare for anyone having thousands of pictures, music and other important data onto it. I

Plugging in the SD card into your PC to find out it is not getting detected could be the worst nightmare for anyone having thousands of pictures, music and other important data onto it. I have shared many How-to's and utilities to help users recover data but sadly all of them failed or were unable to recover all data on the SD-card which came to me for recovery. After doing a lot of research on why my computer is asking me to "Format" the SD-card instead of reading it's content, I was pretty sure the culprit was a bad file-system boot sector.

Plugging in the SD card into your PC to find out it is not getting detected could be the worst nightmare for anyone having thousands of pictures, music and other important data onto it. I have shared many How-to's and utilities to help users recover data but sadly all of them failed or were unable to recover all data on the SD-card which came to me for recovery. After doing a lot of research on why my computer is asking me to "Format" the SD-card instead of reading it's content, I was pretty sure the culprit was a bad file-system boot sector.

3. Go with the default option provided by TestDisk for "Partition Table Type", in my case it was "None" as shown below:

3. Go with the default option provided by TestDisk for "Partition Table Type", in my case it was "None" as shown below:

4. Select "Advanced" Filesystem Utils and Proceed.

4. Select "Advanced" Filesystem Utils and Proceed.

6. As you can see in the example below the card's boot-sector is bad, but luckily we have a backup boot sector which is OK, proceed with "Backup BS" option to copy backup boot sector to main record.

6. As you can see in the example below the card's boot-sector is bad, but luckily we have a backup boot sector which is OK, proceed with "Backup BS" option to copy backup boot sector to main record.

7. Confirm the action.

7. Confirm the action.

8. As you can see the main "Boot Sector" is now fixed and labelled OK.

8. As you can see the main "Boot Sector" is now fixed and labelled OK.

9. The SD-card is now fixed and detected normally by computer, the full file-structure is intact and all files are accessible.

9. The SD-card is now fixed and detected normally by computer, the full file-structure is intact and all files are accessible.

  1. It is advised to backup full SD-card to your computer before unplugging the SD-card now as it can get corrupted once again.

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