Hi,
I was trying to repair a 64Gb Samsung microSD with testdisk. It got corrupted by android (partition turned from exFAT to RAW). I'm not really sure what I have done that it now shows as 273.65Gb and I can't format, repair, anything.
Right now in Testdisk, if I analyse I get Partition sector doesn't have the endmark 0xAA55. No partitions are found. Also, seems the geometry is wrong, hence the size mismatch.
Any clues?
Dead SD Card? Topic is solved
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When asking for technical support:
- Search for posts on the same topic before posting a new question.
- Give clear, specific information in the title of your post.
- Include as many details as you can, MOST POSTS WILL GET ONLY ONE OR TWO ANSWERS.
- Post a follow up with a "Thank you" or "This worked!"
- When you learn something, use that knowledge to HELP ANOTHER USER LATER.
Before posting, please read https://www.cgsecurity.org/testdisk.pdf
Re: Dead SD Card?
Unfortunately testdisk doesn't support exFAT boot sector repair.
Only writing the partition into the partition table.
TestDisk is often able to list files from a corrupted file system.
If you can list your files, you can copy them to another healhy disk or partition.
Otherwise you'll need datarecovery software like PhotoRec.
http://www.cgsecurity.org/wiki/PhotoRec
http://www.cgsecurity.org/wiki/PhotoRec_Step_By_Step
There are something to watch recovering exFAT partitions.
The partition type is 07, it means it's an NTFS partition.
But the boot sector and file system (formatted) is exFAT.
In TestDisk, at the bottom of the screen you can watch the type of your boot sector.
Fiona
Only writing the partition into the partition table.
TestDisk is often able to list files from a corrupted file system.
If you can list your files, you can copy them to another healhy disk or partition.
Otherwise you'll need datarecovery software like PhotoRec.
http://www.cgsecurity.org/wiki/PhotoRec
http://www.cgsecurity.org/wiki/PhotoRec_Step_By_Step
There are something to watch recovering exFAT partitions.
The partition type is 07, it means it's an NTFS partition.
But the boot sector and file system (formatted) is exFAT.
In TestDisk, at the bottom of the screen you can watch the type of your boot sector.
Fiona
Re: Dead SD Card?
Right now I don't care much about the data, I am just wondering how to get the card to work again - I just don't seem to manage to get the geometry to be recognised by any program (gparted, minitool, testdisk...). I can change it manually in testdisk, but can't find any partitions, or create new ones.
Re: Dead SD Card?
Maybe you could give sd formatter a try:
https://www.sdcard.org/downloads/formatter_4/
Go to Option and enable "Format Size Adjustment".
Fiona
https://www.sdcard.org/downloads/formatter_4/
Go to Option and enable "Format Size Adjustment".
Fiona
Re: Dead SD Card?
Tried it, but didn't work.
As the card was new, I sent it back. Thanks for your suggestions anyway.
As the card was new, I sent it back. Thanks for your suggestions anyway.