The BCM94312HMG (chipset BCM4312) was widely deployed in late-2000s laptops (Dell Latitude, HP Compaq). Broadcom never released complete open-source specifications, forcing Linux distributions to rely on the proprietary broadcom-sta driver. The open-source b43 project partially supports the chipset but requires extraction of proprietary firmware.
Run lspci -nn -d 14e4: in the terminal to confirm the PCI ID (usually 14e4:4315 ). Install via APT: sudo apt update sudo apt install bcmwl-kernel-source Use code with caution. Copied to clipboard broadcom bcm94312hmg driver