Vintage laptops, retro gaming builds, or embedded Linux systems where 54 Mbps is sufficient.
The Broadcom BCM94312HMG is a Half Mini PCIe wireless card. It operates on the 802.11b/g standard, offering wireless speeds up to 54 Mbps on the 2.4 GHz frequency band.
Check the box that says
The BCM94312HMG only supports the 2.4 GHz band and older security protocols. If your router is configured strictly for 5 GHz bands or uses WPA3 security, this card cannot connect to it. broadcom bcm94312hmg driver
What and version (e.g., Windows 10 64-bit, Ubuntu 24.04) are you trying to install this driver on?
If you are repurposing an old laptop with the BCM94312HMG into a Linux machine (using Ubuntu, Mint, or Debian), you might find the Wi-Fi still doesn't work out of the box.
Mini PCI Express (HMG typically denotes a half-height module). Driver Installation Guide 1. Windows (XP, 7, 8, 10, 11) Vintage laptops, retro gaming builds, or embedded Linux
The system will scan your hardware and detect the Broadcom BCM4312 chip.
Windows 10 does not always include the driver for the BCM94312HMG in its standard update catalog, resulting in a frustrating "Code 10 (Device cannot start)" error or a persistent "Unknown Device" in Device Manager. Follow these steps to force installation:
Right-click Start and select Device Manager . Under Network adapters , right-click the Broadcom device and select Update Driver . Check the box that says The BCM94312HMG only
priv->tx_ring_head = (ring_idx + 1) % TX_RING_SIZE; ieee80211_tx_info_clear_status(ieee80211_cb(skb));
Because Broadcom cards are often re-branded or customized by laptop manufacturers (OEMs), finding the right driver isn't always as simple as running Windows Update.