How to Fix Fenvi T919 / BCM94360CD bluetooth suddenly stopped working (Opencore 0.6.9, Big Sur 10.4)
This mini-guide provides a structural approach to troubleshoot and fix the issue.
Prerequisites
- Confirm your hardware specifications (CPU, GPU, Motherboard).
- Ensure you have a bootable recovery USB and backup your EFI.
Fix Steps
- Verify your network controller model (Intel, Broadcom, Realtek).
- Ensure the correct kext (e.g., AirportItlwm or BrcmPatchRAM) is loaded in your config.
- Clear network interfaces and reset NVRAM if changes don't apply.
Verification
- Reboot and verify if the functionality is restored and stable under typical usage.
Original Question:
My bluetooth randomly decided to stop working. This happened the other day as well. However, it started working again after I left the computer off overnight. I have tried simple solutions such as resetting the NVRAM and reconnecting the card to the PCI slot and USB header. I mapped my USB ports and ensured that the (only) internal USB 2.0 header is marked as internal (255). The card shows up in Hackintool and ioRegistryExplorer as BRCM20702 Hub. I am happy to provide any configuration/setup details.
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