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02-11-2018 05:09 PM - edited 02-11-2018 05:13 PM
I have a an HP Spectre x360 that comes with built in Bluetooth functionality like most laptops. At some point yesterday, I lost all Bluetooth functionality, which is inconvenient as I have only 1 standard USB port and now have to use it solely for a mouse. The symptoms are as follows:
- The "Bluetooth and Other Devices" window in Settings cannot detect or even begin a search for Bluetooth devices.
- The Bluetooth Troubleshooter returns that the device does not have Bluetooth capability, which is obviously not the case.
- In Device Manager, I need to select View -> Show Hidden Devices to even see the Bluetooth Drivers and the Bluetooth Network Adapters. They are greyed out and display "Currently, this hardware device is not connected to the computer. (Code 45)" in the status window.
- In Device Manager, Under USB controllers, there is an "Unknown USB Device (Device Desriptor Request Failed)."
- The Network Adapter troubleshooter returns nothing, and the Hardware Troubleshooter finds the Unknown USB Error.
The issue persists after reinstalling the OS. All Windows and HP Updates (Both Recommended and Critical) (Including BIOS) have been installed. I have reinstalled all pertinent Drivers in the Device Manager. In addition, I have set all local services regarding Bluetooth and USB to start automatically on startup and rebooted, to no avail.
The Spectre's Blutooth module is contained on the motherboard. My best guess if that it is connected to the CPU via a peripheral USB connection, and a recent firmware update incorrectly overwrote the communication protocols between the two chips. Windows therefore detects the Blutooth chip as an unknown USB device.
Does anyone have any ideas on what else to do?