Eli5: how do recovery tools work, specifically iPhone photo recovery tools.
In: 1
I don’t know about iphone but basic recovery tools typically work on the premise that a file isn’t really deleted.
It takes a lot of time and energy to set all the bits on a storage device to 0 or random to truely delete something (terms and conditions apply). So instead they flip one bit on the file to mark it as deleted. To recover the file you scan for files with this bit flip and check if the storage area was overwritten or not, then flip the bit back if it’s recoverable.
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