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hanswerner71 wrote: 27 Sep 2017, 21:21 However, how can I find out, if the same sectors have been used to store the files?

Is this specific to the used file system? Will ext4 always use the same sectors when overwriting a file?

There is no way to access old versions of a sector without bypassing the flash controller, very few data recovery companies can do it.


Thank you for your answer! Alright, so wear leveling is not relevant regarding this issue.


If the same sectors have been used to store a file, the content of ...

There are some files on my ext4 formatted SD card which have been overwritten with files of the same filename.

There is plenty of space left on the SD card. So I thought, the new written data should have been written to previously free and unused sectors on the SD card due to flash memory wear ...