wifi 修復
sudo apt install firmware-atheros
mkdir ~/firmware-temp
cd ~/firmware-temp
wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/ath12k/WCN7850/hw2.0/amss.bin
wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/ath12k/WCN7850/hw2.0/board-2.bin
wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/ath12k/WCN7850/hw2.0/m3.bin
sudo cp amss.bin /lib/firmware/ath12k/WCN7850/hw2.0/
sudo cp m3.bin /lib/firmware/ath12k/WCN7850/hw2.0/
sudo cp board-2.bin /lib/firmware/ath12k/WCN7850/hw2.0/
強制更新軟連結
這個指令會確保 firmware-2.bin 這個「捷徑」正確地指向我們剛剛複製的 amss.bin。
sudo ln -sf amss.bin /lib/firmware/ath12k/WCN7850/hw2.0/firmware-2.bin
sudo reboot
cd ..
rm -r firmware-temp/