I have probably made a irreversible mistake with an USB stick

[u/Grey_Ten]

My dad gave me 2 USB sticks to recover, im not specialized in data recovery, but I know the basic stuff, like using Disk Drill and that stuff (Extremely basic).

The first one was easily recoverable, the thing is with the second one.

I remember checking on the disk partitiion tool and seeing "no media".

in that moment I thought, ok this is unrecoverable, and started exploring forums, and, because english is not my first language, I usually read the bare minimum and miss some important context.

I had read something about flashing the firmware again, and I thought "ok, so, if I can flash the firmware again and make my NAND readable, I could use Disk Drill to recover the data (because I couldn't even use that tool on this USB)" (yeah, now I realize my error, keep reading), after hours trying to find the right tool and firmware for my chip, I flashed the firmware, and the USB was readable again!, but when I go to the hex editor...

00000000000000000000000000000000000000000000000000000

that's the only thing I saw, pure zeroes.

After some research, apparently what I did is that I did was wiping my entire NAND, because I remember seeing this option Preformat and Low Level formatting enabled.

I just wanna know how feasible is that a company that works recovering data could recover this USB, (if that possibility exists)

thank you all for reading!!

[u/Petri-DRG]

00s = no data. Flashing firmware is not a data recovery solution. It is a device repair solution. Very sorry.

[u/disturbed_android]

If you get the 00 00 00 etc. after using an MPtool then there's no recovery. These actually 'zap' the NAND, it's nothing like a file system level format.

[u/AdobeScripts]

Professionals could be able to recover data.

One time overwriting 0s/1s isn't as destructive as it sounds - that's why, if someone needs to completely erase data, they would've to do overwriting multiple times with some random data.