USB Data Recovery: USB Not Recognized
When you too hastily eject your USB flash drive and your PC won’t recognize it anymore, which part of the drive has failed?
Mechanically, your flash drive is still fine. The USB plug itself still works, the PCB hasn’t shorted out, and the controller chip and flash memory chip are still healthy. What has failed is the logical structure of the flash drive.
When you access a data storage device, be it an internal or external hard drive or SSD or a USB flash drive, your computer follows a chain of machine logic to reach the physical location of your data. If a part of that logical chain breaks down, your computer becomes a blind man in a dark room trying to find a black cat.