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HP Victus 15: MediaTek Bluetooth repeatedly crashes with Code 43 after ~1 hour of au

Fri, 28 Aug 2026 11:09:08 -0700

I have an HP Victus 15-fa0033dx gaming laptop (SKU 9T9R8UA#ABA) running:

Windows 11 Home
Version 25H2
OS Build 26200.8875
Experience Pack 1000.26100.334.0
MediaTek Bluetooth adapter
Bluetooth hardware ID: USB\VID_13D3&PID_3567&MI_00
Current driver: MediaTek 1.3.17.162, dated 4/25/2024

Bluetooth initially works normally, but after extended use—particularly Bluetooth audio—the adapter stops responding.

I'm using TOZO A1 Bluetooth earbuds. In my latest test, I connected them at 11:20 AM and played audio continuously. Bluetooth stopped working at approximately 12:45 PM, after about 85 minutes.

When it fails, Windows logs:

BTHUSB Event ID 3:

A command sent to the adapter has timed out. The adapter did not respond.

It can repeat several times. For example, on August 17:

12:45:31 — Event 3
12:51:33 — Event 3
12:51:38 — Event 3

Then:

BTHUSB Event ID 17:

The local Bluetooth adapter has failed in an undetermined manner and will not be used. The driver has been unloaded.

After this, Device Manager shows the MediaTek Bluetooth adapter with:

Code 43 — Windows has stopped this device because it has reported problems.

Bluetooth disappears from Windows Quick Settings and Windows reports that Bluetooth is turned off even though the toggle may still appear enabled.

Multiple normal restarts
Powering the laptop completely off
Windows Bluetooth troubleshooter
Uninstalling/reinstalling the Bluetooth device
Installing/updating HP drivers and firmware
Checking Device Manager
Checking Event Viewer
Checking power-management settings
Updating the HP software/firmware components

At one point, uninstalling the device resulted in:

Unknown USB Device — USB Device Descriptor Failure

The Wi-Fi portion of the wireless adapter continues working normally.

I booted Bazzite Linux from a separate blank 1 TB external HDD.

The same laptop, same MediaTek Bluetooth adapter, and same TOZO A1 earbuds worked normally in Bazzite while playing Bluetooth audio continuously. It survived the test without the Bluetooth adapter crashing.

This makes me suspect a Windows driver/firmware/software issue rather than a physical Bluetooth hardware failure.

Windows is currently using:

oem87.inf

with:

MediaTek 1.3.17.162

I also found another MediaTek Bluetooth INF in the Windows Driver Store that explicitly supports my exact hardware ID:

USB\VID_13D3&PID_3567&MI_00

located at:

C:\Windows\System32\DriverStore\FileRepository\mtkbtfilter.inf_amd64_4e18fe2e122d5d00\mtkbtfilter.inf

I haven't changed to that package yet because I'm trying to determine its exact driver version first.

Main question

What could be causing the MediaTek Bluetooth controller to consistently hang after extended Bluetooth audio use in Windows 11 25H2, while the exact same hardware works reliably under Bazzite Linux?

I'm particularly interested in whether this points to a MediaTek driver/firmware issue, Windows 11 25H2 compatibility problem, or another software-level issue, and what the safest next troubleshooting step would be. (p.s. this is a summary of an insanely long thread with ChatGPT)

⟐ Answer edited August 28, 2026 at 11:09 MST

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