SDHC card: Filesystem missing
Posted: 15 Jun 2016, 18:44
Hi there,
I have a problem with my sdhc memory card. I use this memory card in my smartphone, but it eventually (presumably after a reboot?) was no longer recognized. There are some pictures on the memory card which have not been secured yet. I would like to restore those...
What I have tried:
I put the memory card into a sdhc/USD Adapter. Windows 7 recognizes the drive and shows 12.4 of 28.7 GB free memory which may be correct. Unfortunatelly there a no files listed on the drive.
I tried PhotoRec, but it doesn't find any files either. This image shows the partition PhotoRec recognizes:
Then I used Testdisk to scan for lost partitions. I selected Partition type "Intel". My wife has the same smartphone and memory card and I've looked up the settings on that card (see below). Quick search and deeper search returned no results.
At this point I stopped working with the original memory stick and created an image with testdisk (partition type "none" & Filesystem Utils). I noticed that the cylinders in the image differ from the original memory card(3758 instead of 3757) - is this a problem?
Nevertheless I tried to manually add a partition to the table. I looked up the partition parameters on the 2nd memory card and tried to recreate the partition.
Working card:
Image of the corrupted card after creating the partition entry:
But I'm not sure I've done everything right and if that ever works that way with the image?
After a restart the partion table on the corrupted card shows as following. Why are there two identical entries?
Unfortunatelly I couldn't access any data und the boot sector is still damaged. I tried to rebuild BS, but get the errors: "No FAT found" and "Can't find cluster size."
I'm at a loss what to do now. Are there any chances to restore the data or is the memory card physically broken?
I have a problem with my sdhc memory card. I use this memory card in my smartphone, but it eventually (presumably after a reboot?) was no longer recognized. There are some pictures on the memory card which have not been secured yet. I would like to restore those...
What I have tried:
I put the memory card into a sdhc/USD Adapter. Windows 7 recognizes the drive and shows 12.4 of 28.7 GB free memory which may be correct. Unfortunatelly there a no files listed on the drive.
I tried PhotoRec, but it doesn't find any files either. This image shows the partition PhotoRec recognizes:
Then I used Testdisk to scan for lost partitions. I selected Partition type "Intel". My wife has the same smartphone and memory card and I've looked up the settings on that card (see below). Quick search and deeper search returned no results.
At this point I stopped working with the original memory stick and created an image with testdisk (partition type "none" & Filesystem Utils). I noticed that the cylinders in the image differ from the original memory card(3758 instead of 3757) - is this a problem?
Nevertheless I tried to manually add a partition to the table. I looked up the partition parameters on the 2nd memory card and tried to recreate the partition.
Working card:
Image of the corrupted card after creating the partition entry:
But I'm not sure I've done everything right and if that ever works that way with the image?
After a restart the partion table on the corrupted card shows as following. Why are there two identical entries?
Unfortunatelly I couldn't access any data und the boot sector is still damaged. I tried to rebuild BS, but get the errors: "No FAT found" and "Can't find cluster size."
I'm at a loss what to do now. Are there any chances to restore the data or is the memory card physically broken?