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Tool to test flash memory devices (usb stick, sd card)

So, i bought a usb stick for damn low price. I assumed it won't have the size but anyway, the price was low, i had some money in the pocket so i tried this delicious fruit of joy and fun.

As expected, the size doesn't fit and i can not format the stick without any errors. So i searched for a tool to test this sort of devices. After a while i found f3.

Whats the real size of my memory stick you going to ask? Well, i will keep this as a secret and won't try something like this again ;-).

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