Bluetooth disappearing problem

[Shyam_1]

Hello HP Support,

I am facing a recurring Bluetooth issue on my HP Victus 15-fb0050AX (6F9V1PA) running Windows 11.

The laptop uses a MediaTek Bluetooth Adapter. Initially, the Bluetooth adapter started failing and Device Manager showed Code 43 – “Windows has stopped this device because it has reported problems.”

I updated the Bluetooth driver to the latest HP driver available for this device:

• Driver: MediaTek Bluetooth Driver
• Version: 1.3.17.168
• Driver date: 22-01-2026

After installing the updated driver, Bluetooth started working normally, but the problem returned after some time. Now, when Bluetooth stops working, Device Manager shows:

“Currently, this hardware device is not connected to the computer. (Code 45)”

The MediaTek Bluetooth Adapter remains listed in Device Manager, but Windows reports that the hardware is not connected. My Wi-Fi continues to work normally.

I have already tried updating/reinstalling the Bluetooth driver, including the latest 1.3.17.168 driver, but the issue keeps returning.

Could you please advise whether this is a known hardware/firmware issue with the MediaTek Bluetooth adapter/MT7921 on the Victus 15-fb0xxx series? Should I perform any specific hardware diagnostics, or does this require a hardware/service evaluation?

I would appreciate any guidance on the next appropriate step, as repeatedly reinstalling the driver only appears to provide a temporary fix.

Thank you.

[Kuroi_Kenshi]

Hi @Shyam_1,

Welcome to the HP Support Community!

Thank you for providing the detailed information. I understand that your HP Victus 15-fb0050AX (6F9V1PA) uses a MediaTek Bluetooth adapter and that reinstalling the latest MediaTek Bluetooth driver 1.3.17.168 only restores Bluetooth temporarily. The issue now appears as Code 45, while Wi-Fi continues to work normally.

Since you have already updated/reinstalled the driver, I would not recommend repeatedly reinstalling it. HP describes Code 45 as Windows reporting that the hardware is not currently connected.

Please try this the next time. Bluetooth disappears:

• Open Device Manager > Bluetooth.
• Check whether the MediaTek Bluetooth Adapter shows Code 45 or disappears completely.
• Also expand Universal Serial Bus controllers and check whether any device has a yellow warning icon.
• If there is a warning, open Properties > General and note the error code.
• Run HP PC Hardware Diagnostics and check the available component tests, particularly the networking tests. 

HP Diagnostics runs hardware checks independently of normal Windows operation and can provide a Failure ID if a hardware problem is detected.

At this stage, I would not confirm this as a known MT7921 hardware/firmware issue based on the symptoms alone. However, if the adapter repeatedly changes to Code 45 after the system has been running and the issue persists with the current HP BIOS and driver, a hardware/service evaluation of the wireless/Bluetooth module and its connection to the system board would be appropriate.

If you can provide the USB controller status/error (if present) when Bluetooth fails, that would be particularly useful before proceeding to service.

Best regards,
Kuroi_Kenshi

[Shyam_1]

It works normally when I shut down and then power in again my laptop but that lasts only for few mins and then it shows error code 43 I saw error code 45 once but error code 43 is very frequent. I checked troubleshooting but nothing works and hardware tests doesn't flag any defects moreover the devices are also fine with no issues all is just with the bluetooth and the mediatek chip.

[Kuroi_Kenshi]

Hi @Shyam_1,

Thank you for the update. That clarifies the behavior further.

Since the Bluetooth adapter works normally after a shutdown/power-on but fails again within a few minutes with Code 43, while HP Hardware Diagnostics does not report a hardware failure, I would not recommend repeating the driver installation or hardware tests at this point.

When the issue occurs again, please check one more thing:

1. Open Device Manager.
2. Expand Universal Serial Bus controllers.
3. Check whether any device shows a yellow warning icon at the same time the MediaTek Bluetooth adapter shows Code 43.
4. If there is one, open Properties > General and provide the error code/message shown there.

If there is no USB/controller error and the MediaTek adapter alone consistently enters Code 43, despite the latest HP driver and BIOS being installed, the next appropriate step would be an HP service evaluation. A hardware diagnostic passing does not necessarily rule out an intermittent device/interface problem that occurs only during normal operation.

Please share the USB controller status if you see a warning when Bluetooth fails. That will help us determine whether the Bluetooth and USB interface are failing together.

Best regards,
Kuroi_Kenshi