cgsecurity.org

I ran Rebuild BS and it finished in few seconds, then I took the screenshot.
Now, I'm running photorec.

I Tried Quick Search and Deeper Search and got this message
No partition found or selected for recovery

I've tried Deeper Search and it has the same result.
Unfortunately, I don't remember anything about the previous geometry.
Is there any technique to know the original geometry ?
What if I try to get another flash with the same brand and capacity ?

One more question, Does writing the partition table ...

It´s seems to be a bad config of the partition table by some app under Windows (WinImage and some usblive makers often cause this problems mounting pendrives). Have you tried to use it in Windows and format it?

As I remember, the partition doesn't even appear in My Computer .
Do you think that ...

I have followed your instructions.
when I pressed P to list files
It reported "No file found, filesystem may be damaged."
Please remember that I have also changed the head number. It was not 255 in its origin state.

Sat Apr 21 21:33:31 2012
Command line: TestDisk /log /dev/sdb

TestDisk 6.12 ...

Thanks for your advice.

I wrote the partition table. but it's also unmountable.
In dmesg log I can see this statement whenever I plug in the flash:
sdb: p1 size 7837584 exceeds device capacity, limited to end of disk
note: I have messed up the geometry a few times earlier

Sat Apr 21 15:07:11 ...

<I originally sent this question to the support email and the reply asked me to post it in the forum>

My friend has a flash disk which it is not working because it was removed without using "safely remove" in Windows. When I connected it to my pc (linux), it was not able to detect the partition ...