i install debian11 (which kernel version is 5.10.140) in my compute,and rebuild iwlwifi.ko for AX211 as follow:
git clone https://github.com/intel/backport-iwlwifi.git
cd backport-iwlwifi/iwlwifi-stack-dev
make defconfig-iwlwifi-public
make
sudo make install
then copy firmware to /lib/firmware,WIFI work fine but buletooth not work.
~$ sudo rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
~$ sudo bluetoothctl scan on
No default controller available
what should i do next, rebuild btintel.ko for something others.