Skip to main content.

To fix this, you generally need a . This is specialized software used in factories to "burn" the firmware onto the controller. Step 1: Identify Your Controller

Hit "Start" and wait. Do not unplug the drive. If successful, the status bar will turn green, and the "FA00" error will be replaced by the drive’s actual capacity. Why is my drive getting "Hot"?

Alcor Micro controllers are very picky. A tool meant for an "AU6989" might not work for an "AU6989SN-GT." Search for "AlcorMP" followed by your controller model.

The drive's light flashes rapidly but never initializes. How to Fix the "Unknown FA00 FW FA04" Error

Alcor Micro is a major manufacturer of USB flash drive controllers. When a drive is functioning correctly, it reports its real capacity and brand name. However, when the firmware becomes corrupted—due to improper ejection, power surges, or NAND wear—it enters a or a generic state.