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lsusb | grep -i broadcom # (Not USB — will show nothing) dmesg | grep -i brcm # Check for firmware load errors lsmod | grep brcmfmac # Confirm driver loaded rfkill list # Check for soft block If you provide your and device (e.g., Orange Pi Zero 2, Banana Pi M2 Zero), I can give you the specific steps to obtain and install the correct firmware.
The is a Wi-Fi and Bluetooth combo module based on the Broadcom BCM43438 chipset. It is commonly found in single-board computers (like Orange Pi, Banana Pi, and some Rockchip devices) and low-power embedded systems. Aw-cb231nf Driver