Can't access files on SD-Card

Using PhotoRec to recover lost data
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Author
anbaum
Posts: 2
Joined: 14 Mar 2018, 16:44

Can't access files on SD-Card

#1 Post by anbaum » 19 Mar 2018, 06:28

Hello!
I posted in the German part of the forum, but since there hasn’t been an answer yet... Apart from that: Sorry for my English!
I am having a problem with a 32GB SDHC card (from Transcend), where I can no longer access the (mostly) image files stored on it. By Photorec and with the help of this ingenious forum, I could already save a large part of the photos, but it lacks so far still the last taken pictures, which are unfortunately most important (it is the memory card of our school camera). I am an absolute amateur concerning data recovery etc., so I would be very grateful for any help!

I try to give as much information as possible on the problem:

1. Camera (Sony Alpha 5) and Windows (Translations from the German text: "You must be able to format the disk in drive F before you can use it" and "F: \ can not be accessed. There is no detected file system on the disk...”) can not access the files.

2. As far as I know, partitions are not created on the memory card.

3. Programs like Recuva can’t access the card.

4. Photorec was able to recover images, but not all (the most recent ones are still missing).

5. Chkdsk reports "The file system type is RAW." and can’t access it.

6. At Testdisk I have tried the following with instructions from various forum posts (unfortunately usually without really knowing what I'm doing there):
- Analysis with setting partition table type "none" did not find any partitions and with the setting "Intel" it said "Partition sector does not have the endmark 0xAA55"

- for the item Advanced and the setting partition table "none", type "ntfs" the message "Boot sector Status: Bad, Backup boot sector Status: Bad, Sectors are identical. A valid NTFS Boot sector must be present in order to access any data; even if the partition is not bootable." was displayed

- at the item Advanced and the setting partition table "none", type "Fat32" the message "Boot sector Bad, Backup boot sector Bad, First sectors (Boot code and partition information) are not identical. Second sectors (cluster information) are not identical. Third sectors (Second part of boot code) are not identical. A valid FAT Boot sector must be present in order to access any data; even if the partition is not bootable." showed up

More I do not trust myself without expert guidance (wich is probably better that way too ...)

I attach the testdisk log file, maybe it gives even more insights.

Thank you for all attempts to help !!!

Best regards

Andreas


Testdisk-Log-File:

Wed Mar 14 15:56:25 2018
Command line: TestDisk

TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Windows 8 (9200)
Compiler: GCC 4.8, Cygwin 1007.34
Compilation date: 2015-04-18T13:01:55
ext2fs lib: 1.42.8, ntfs lib: 10:0:0, reiserfs lib: 0.3.1-rc8, ewf lib: 20120504, curses lib: ncurses 5.9
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sda)=128035676160
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sdb)=1000204886016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sdc)=32504807424
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive0)=128035676160
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive1)=1000204886016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive2)=32504807424
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\C:)=113472700416
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\D:)=1000202043392
filewin32_getfilesize(\\.\E:) GetFileSize err Unzulässige Funktion.

filewin32_setfilepointer(\\.\E:) SetFilePointer err Unzulässige Funktion.

Warning: can't get size for \\.\E:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\F:)=32500613120
Hard disk list
Disk /dev/sda - 128 GB / 119 GiB - CHS 15566 255 63, sector size=512
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512
Disk /dev/sdc - 32 GB / 30 GiB - CHS 3951 255 63, sector size=512
Drive C: - 113 GB / 105 GiB - CHS 13795 255 63, sector size=512
Drive D: - 1000 GB / 931 GiB - CHS 121600 255 63, sector size=512
Drive F: - 32 GB / 30 GiB - CHS 3951 255 63, sector size=512

Partition table type default to None
Drive F: - 32 GB / 30 GiB
Partition table type: None
Partition table type default to None
Drive F: - 32 GB / 30 GiB
Partition table type: None

Analyse Drive F: - 32 GB / 30 GiB - CHS 3951 255 63
Current partition structure:
P Unknown 0 0 1 3951 78 31 63477760

search_part()
Drive F: - 32 GB / 30 GiB - CHS 3951 255 63
Search for partition aborted

Results

interface_write()

No partition found or selected for recovery

search_part()
Drive F: - 32 GB / 30 GiB - CHS 3951 255 63
Search for partition aborted

Results

interface_write()

No partition found or selected for recovery

Analyse Drive F: - 32 GB / 30 GiB - CHS 3951 255 63
Current partition structure:
P Unknown 0 0 1 3951 78 31 63477760

search_part()
Drive F: - 32 GB / 30 GiB - CHS 3951 255 63
Search for partition aborted

Results

interface_write()

No partition found or selected for recovery

search_part()
Drive F: - 32 GB / 30 GiB - CHS 3951 255 63
Search for partition aborted

Results

interface_write()

No partition found or selected for recovery
Partition table type default to None
Drive F: - 32 GB / 30 GiB
Partition table type: Intel

Analyse Drive F: - 32 GB / 30 GiB - CHS 3951 255 63
Current partition structure:

Partition sector doesn't have the endmark 0xAA55

search_part()
Drive F: - 32 GB / 30 GiB - CHS 3951 255 63

Results

interface_write()

No partition found or selected for recovery
simulate write!

write_mbr_i386: starting...
Store new MBR code
write_all_log_i386: starting...
No extended partition

Interface Advanced
Partition table type default to None
Drive F: - 32 GB / 30 GiB
Partition table type: None

Interface Advanced
P Unknown 0 0 1 3951 78 31 63477760
Change partition type:
P NTFS 0 0 1 3951 78 31 63477760

ntfs_boot_sector
P NTFS 0 0 1 3951 78 31 63477760
filesystem size 1
sectors_per_cluster 0
mft_lcn 268435567
mftmirr_lcn 0
clusters_per_mft_record 0
clusters_per_index_record 0
Boot sector
Status: Bad

Backup boot sector
Status: Bad

Sectors are identical.

A valid NTFS Boot sector must be present in order to access
any data; even if the partition is not bootable.
Change partition type:
P NTFS 0 0 1 3951 78 31 63477760

ntfs_boot_sector
P NTFS 0 0 1 3951 78 31 63477760
filesystem size 1
sectors_per_cluster 0
mft_lcn 268435567
mftmirr_lcn 0
clusters_per_mft_record 0
clusters_per_index_record 0
Boot sector
Status: Bad

Backup boot sector
Status: Bad

Sectors are identical.

A valid NTFS Boot sector must be present in order to access
any data; even if the partition is not bootable.
Change partition type:
P FAT32 0 0 1 3951 78 31 63477760

fat32_boot_sector
P FAT32 0 0 1 3951 78 31 63477760
Boot sector
Bad

Backup boot sector
Bad

First sectors (Boot code and partition information) are not identical.
Second sectors (cluster information) are not identical.
Third sectors (Second part of boot code) are not identical.

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

TestDisk exited normally.

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