cgsecurity.org

Hi,

Android stopped recognizing this card (used in my Android phone for Images and Video mainly) and wanted a format. I tried W10 and the same happened. I used CHKDSK /F /R but after some operations the result was a RAW card.

Now I'm using TestDisk to try to recover this card. I checked the documentation and learned that there is a "Backup boot sector" that can be used to recover the "Boot Sector". In my case both are BAD. See below. Should I use Rebuild BS? Is there another option to get access to the files saved in the SD Card?

TestDisk 7.1-WIP, Data Recovery Utility, May 2017
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdb - 64 GB / 59 GiB - CHS 7785 255 63
Partition Start End Size in sectors
1 * FAT32 LBA 0 32 33 7785 19 42 125065216

Boot sector
Bad

Backup boot sector
Bad

First sectors (boot code and partition information) are not identical.
Second sectors (cluster information) are not identical.

A valid FAT Boot sector must be present in order to access
any data; even if the partition is not bootable.

Thanks,

Rui

Try RebuildBS, List. If you can see your files, choose Write, confirm, Quit

If it doesn't work, use PhotoRec instead.
Good luck

Hi. Thank you so much for your support... I have recovered all the files I wanted!

For the record: Rebuild BS didn't work successfully on the SD Card and I have used Qphotorec after that. I had to stop the process after 7 hours! But I could see that it worked very well. So I restarted the process, but this time I filtered to recover only the images (JPG files) et voilá all my images recovered after just 1 hour.

Now the strangest part. I tried CHKDSK /F /X /R again on the card and to my surprise CHKDSK worked and apparently repaired the SD card. But there was a problem with permissions and file access. I tried to give the right permissions and the SD card is RAW again. But that's ok! I've got my files!