Opcode_0xFF

I fixed Wi-Fi association on my H96 Max V12 RK3318 (BCM4334/HS2734C SP). Armbian detected wlan0 and scanned 2.4/5 GHz networks, but every AP returned CTRL-EVENT-ASSOC-REJECT ... status_code=16 before WPA authentication. The issue was not the BCM4334 firmware binary: stock Android fw_bcm4334b1_ag.bin and Armbian /lib/firmware/brcm/brcmfmac4334-sdio.bin have the identical SHA-256 eb0d5c42a693651b3a5400b8b1c70807adeaf179cc7cc53ef611af09b76adf00. The fix was replacing only /lib/firmware/brcm/brcmfmac4334-sdio.rockchip,rk3318-box.txt with vendor/etc/firmware/nvram_4334.txt extracted from the matching stock Android 12 H96 Max V12 image, while preserving the box's real macaddr=. The generic Armbian AP6334 NVRAM differs in regulatory, PA/RSSI, RF switch-map, and 2.4/5 GHz power-calibration values. After reboot, the box connected to 5 GHz WPA2, received DHCP, and passed internet pings. I suggest offering this HS2734C/SP NVRAM as an optional AP6334 variant rather than replacing the generic default.