| Symptom | Description | |---------|-------------| | | Device reports PID=0xFA00 (invalid/default, not a standard Alcor product ID) | | FW FA04 | Firmware version 0xFA04 — often a fallback/bootloader mode or error state | | HOT | Thermal sensor (if present) or current draw indicates overheating; driver logs show "Device Descriptor Request Failed" | | Behavior | Device not recognized, repeatedly connects/disconnects, may work briefly then fail |
This is the most misunderstood part of the keyword. In hardware detection terms, "Hot" refers to Hotplug or Hot Swapping . It indicates that the device is designed to be connected/disconnected while the computer is on. It is a status flag, not a warning. However, when paired with "Unknown," it usually means the driver stack for hot-swappable media is broken. alcor micro unknown fa00 fw fa04 hot
Alcor chips have a for firmware updates, which shows as unknown with an FAxx ID. | Symptom | Description | |---------|-------------| | |
A firmware flash with MPTool will likely bring it back to life. It is a status flag, not a warning
If the tool doesn't see it, you may need to use the "Driver" tab in the software to install the Alcor bus driver. Setup/Configuration: Click "Setup." (The password is usually blank or "888888").