Because this is a firmware-level issue, standard Windows formatting tools will not work. You need to use specialized Phison repair tools. Step 1: Identify Your Exact Chipset
Fixing the "13FE USB DISK 50X USB Device" No Media Error: A Complete Guide
When the drive is recognized as "13FE USB DISK 50X" (or 53X, or 5500, etc.) with a "No Media" status, it means your computer can see the controller chip, but the controller cannot communicate with the NAND flash memory chip where the data is actually stored. Drive letter appears, but size is 0 bytes or unknown. 13fe usb disk 50x usb device
In everyday troubleshooting, seeing “13fe usb disk 50x usb device” in system logs often indicates one of three scenarios:
The 13FE USB disk, or 50x USB device, is a reliable and portable storage solution for users who need to transfer files between devices. With its compact design, durable construction, and fast transfer speeds, it is an ideal choice for everyday use. By following the guidelines outlined in this guide, users can ensure safe and effective use of the device. Because this is a firmware-level issue, standard Windows
Every USB device carries a unique and Product ID (PID) assigned by the USB Implementers Forum. The hexadecimal number 13fe is officially registered to Kingston Technology Company , though it is also used by Phison Electronics — a major controller manufacturer that supplies many brands. This dual association highlights a key reality of the USB flash drive market: most drives are assembled from off-the-shelf controller chips and NAND flash memory, then branded by different companies. When a computer reads 13fe , it recognizes the device’s core hardware family, not necessarily the logo printed on the plastic casing.
The repetition of “usb disk” and “usb device” in the descriptor string reflects how the drive identifies itself to the operating system’s USB mass storage class driver. The term is a generic device description, meaning the firmware was programmed with a default or minimal string table. This often occurs in lower-cost drives or those that have been re-flashed with third-party tools. Advanced users sometimes deliberately reprogram a drive’s VID/PID and descriptors to spoof other devices or to revive “bricked” flash drives after a failed firmware update. Drive letter appears, but size is 0 bytes or unknown
Before downloading any tools, use a tool like to find the exact Controller Part-Number (e.g., PS2251-03, PS2251-07). VID: 13FE (Phison) PID: 5100 or 5500 (Common identifiers) Step 2: Use Phison Format & Restore Software
If the device appears in Device Manager (as "13fe...") but not in "This PC":