这个尝试首先来自小撸在香蕉派创客社区的帖子《一个被大家遗忘的功能……》，然后在英文社区请教了armbian的成员tkaiser《Build armbian image for BPI-M2+》，得到相关提示《jernej got BT working on his OpenELEC port》，接下来就是尝试了。
git clone https://github.com/BPI-SINOVOIP/BPI_WiFi_Firmware
mv ~/BPI_WiFi_Firmware/ap6212/nvram_ap6212.txt ~/BPI_WiFi_Firmware/ap6212/nvram.txt
cp -r ~/BPI_WiFi_Firmware/ap6212 /lib/firmware
cp -r ~/BPI_WiFi_Firmware/ap6212 /etc/firmware/
cp /lib/firmware/ap6212/bcm43438a0.hcd /etc/firmware/ap6212/4343A0.hcd
su
echo "0" > /sys/class/rfkill/rfkill0/state
echo "1" > /sys/class/rfkill/rfkill0/state
echo " " > /dev/ttyS1
hciattach /dev/ttyS1 bcm43xx 115200
rfkill unblock all
hciconfig hci0 up
hciconfig -a
hcitool scan
必须要用armbian系统？在树莓系统上未尝试成功
