After 20 seconds, Device Manager will refresh. Your Bluetooth radio should now appear under a heading, and the yellow triangle will vanish.
Generic drivers from Broadcom rarely work. Microsoft’s native Bluetooth stack will not recognize the TOS6205 ACPI identifier. You need the proprietary Toshiba stack or a modified Broadcom driver.
The series includes sub-models like:
Users typically encounter this scenario:
| Term | Meaning | |------|---------| | | The wireless short-range communication device. | | ACPI | Advanced Configuration and Power Interface – a standard for device discovery and power management in Windows. | | TOS6205 | The hardware ID (Toshiba’s ACPI vendor ID for a Bluetooth radio). | | Toshiba Satellite C660 | The specific laptop model. | | ZIP | A compressed archive file containing drivers or tools. | Bluetooth Acpi Tos6205 Toshiba Satellite C660 Zip
The ZIP file you refer to is almost certainly a driver pack downloaded from:
In the Toshiba Satellite C660, this module is not a standard USB Bluetooth dongle. It is an internal, proprietary module that requires a specific driver INF file to tell Windows how to communicate with it. Without the correct driver, Windows sees the hardware but has no idea what to do with it. After 20 seconds, Device Manager will refresh
Below, we will dissect what this device is, why Windows struggles to recognize it, and exactly how to use the correct driver package—often delivered as a file—to get your Bluetooth working again.
Getting the "Unknown Device" error with the hardware ID ACPI\TOS6205 is a common headache for owners of the . This specific ID refers to the Bluetooth ACPI , a virtual interface that allows Windows to communicate with the laptop's physical Bluetooth hardware and manage its power states. Microsoft’s native Bluetooth stack will not recognize the
Disable the internal TOS6205 in Device Manager (right-click > Disable device) and buy a (e.g., TP-Link UB400, Asus BT400). Windows 10/11 will recognize it instantly without drivers. This gives you better range, lower power use, and modern BLE support.
Don't let Bluetooth connectivity issues hold you back! Take control of your Toshiba Satellite C660's Bluetooth capabilities and enjoy a more streamlined, efficient computing experience.
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