This tutorial outlines the steps to fix the immediate kernel panic/hard freeze caused by the Broadcom BCM43224 wireless card on older MacBook hardware running modern Linux kernels (e.g., 7.0.0+).
The internal Broadcom card (BCM43224 [14e4:4353]) often triggers an immediate system freeze when loading the proprietary wl driver or the open-source b43 driver. This is typically due to modern power management or MSI (Message Signaled Interrupts) conflicts on the older MacBook PCI bus.
- An external USB Wi-Fi dongle or Ethernet adapter (to maintain internet during the fix).
- Terminal access.