How to Fix Missing bluetooth from Catalina - Big Sur

How to Fix Missing bluetooth from Catalina - Big Sur

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

1. Verify your network controller model (Intel, Broadcom, Realtek).
2. Ensure the correct kext (e.g., AirportItlwm or BrcmPatchRAM) is loaded in your config.
3. 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:

Big Sur is running flawless after switching over to opencore fresh install the only thing that's missing is the bluetooth nothing in the system preference and nothing under system report only says " no information "
it was working 100% in Catalina with clover Bootloader.

Author: raythetech80