Hello.
I have a Pendrive that when I copy a file from my computer to it, My Pendrive Locked suddenly and asked me to Format it.I formatted it but I can't recover it. I never copied any files on it too and it is so odd for me. I tested some Recovery Tools like "Get Data Back" but...
Any idea to recover it?
It is a 4GB Pendrive.

Thank you.

So there is files on there you need to recover?

Yes. Why recover program can't recover it?

You formatted it?

for the data to be stored and retrieved properly, the flash drive must be working properly. Consider the following diagram, and be in awe of the graphic skillz I possess...



possible reasons:
- some electronics failed on the PCB of the flash drive, now it doesn't work properly.
- bad connections / solder joints
- firmware of controller chip corrupt, now it doesn't work properly
- NAND Flash is faulty, now it doesn't work properly.
- The data got corrupted due to a bug in the firmware
- cheap flash / device fail
etc..

a Data recovery company might be able to unsolder chip, read it and recover files. Or try taking a disk image with DMDE, ignoring partitions and run data recovery software such as getdataback, and choose options like "ignore File Allocation Table", find lost files, "raw scan" etc

Thank you for your useful Diagram but I can' see any option with the name "ignore File Allocation Table" in getdataback 5.2.1.

Options, recovery Tab.
FAT settings: ignore FAT
FAT = File Allocation Table. I think you should try and image the disk first if the files on there are important.