Apple Broadcom Wi-Fi Companion

Revive your legacy Broadcom Wi-Fi cards on macOS Sonoma, Sequoia, and Tahoe without root patches

Introduction

Apple Broadcom Wi-Fi Companion (BCMC) is a macOS kernel extension designed for selected Broadcom FullMAC Wi-Fi cards. It consists of a device driver that configures legacy Wi-Fi chips and a Lilu plugin that ensures compatibility with Apple's new Wi-Fi driver.

Current Status

• Last Updated: Nov 21, 2025
• Driver Status: Beta Testing - Not Recommended for Daily Use
• Limitations and Known Issues: Link

Discussion

A discussion thread is available on InsanelyMac.

Supported Systems

• macOS Tahoe
  • 26.0 (25A354)
  • 26.0.1 (25A362)
  • 26.1 (25B78)
• macOS Sequoia
  • 15.7 (24G222)
  • 15.7.1 (24G231)
  • 15.7.2 (24G325)
• macOS Sonoma
  • 14.8 (23J21) (Not Verified Yet)

Other systems have not been tested. Old systems will not be supported due to the maintenance burden.

Supported Wi-Fi Chips

Chip Name	Device ID	Card Names
BCM43602	0x14E4, 0x43BA	BCM943602BAED, BCM943602CDP, BCM943602CS, DW1830
BCM4350	0x14E4, 0x43A3	BCM94350ZAE, DW1820A

Getting Started

Please refer to the manual to update your bootloader configuration and install the kernel extension properly.

Boot Arguments

Please refer to the manual to see all boot arguments. Under normal circumstances, you don't need to add any BCMC-specific boot arguments.

Device Properties

Please refer to the manual to see all device properties. Under normal circumstances, you don't need to add any BCMC-specific device properties other than the ones mentioned in the Getting Started section.

Support

If you would like to support my work, please consider a donation via Ko-Fi.

License

This project is licensed under BSD-3-Clause.
Copyright (C) 2023-2025 FireWolf @ FireWolf Pl. All Rights Reserved.