Once detected, you must configure the tool correctly. A wrong setting here = permanent brick.
Seeing "Alcor Micro Unknown FA00 F/W FA04" in Device Manager is alarming, but it is not the end. It is merely a firmware hiccup—a controller that has forgotten how to talk to its memory chip.
By understanding the hardware ID, using the correct Alcor MP Tool, performing a careful pin short to force ROM mode, and reflashing the firmware, you can move your drive from "Unknown" to "Fixed." alcor micro unknown fa00 f w fa04 fixed
Remember the golden rules:
Your drive isn't dead; it's just confused. With this guide, you have the power to fix it. Good luck, and welcome to the club of those who have successfully banished the FA00 error for good. Once detected, you must configure the tool correctly
You typically see this error after:
Crucial distinction: If you see "FA00," your drive is not physically dead. The hardware is alive. The controller is responding to the USB bus (hence why Windows sees it). The problem is logical/software-based. Go to the Firmware tab
You need to extract the raw NAND image before attempting any firmware fix.
Tools Required:
Step 1: Identify the Exact Alcor Chip
Even if it says FA00, use ChipGenius. Note the Chip Vendor and Chip Part-No. It might say AU6989SN or AU6990. Write this down.
Step 2: Do NOT use MPTool yet! MPTool is designed to reformat the drive, erasing all data. Instead, we need a low-level NAND reader. Unfortunately, because the controller is in FA00 mode, standard USB bridges won’t work. Your only DIY option is: