我在 2017 年的 15' Mac 上下载了 Ubuntu 22.04，但似乎无法使用 WIFI。我检查了我的互联网驱动程序，发现它是 BCM43602。在网上搜索后，我发现我必须安装驱动程序。我按照如下所示进行操作。
sudo apt-get purge bcmwl-kernel-source
sudo apt update
sudo update-pciids
sudo apt install firmware-b43-installer
sudo reboot
sudo iwconfig wlp3s0 txpower 10dBm
但是，sudo iwconfig wlp3s0 txpower 10dBm对我来说不起作用。我得到了
Error for wireless request "Set Tx Power" (8B26) :
SET failed on device wlp3s0 ; Input/output error.
当我运行命令时 lspci -knn | grep Net -A3; rfkill list，我得到了
03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43602 802.11ac Wireless LAN SoC [14e4:43ba] (rev 02)
Subsystem: Apple Inc. BCM43602 802.11ac Wireless LAN SoC [106b:0173]
Kernel driver in use: brcmfmac
Kernel modules: brcmfmac
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
当我运行命令时dmesg | grep brcm，我得到
[ 3.078509] usbcore: registered new interface driver brcmfmac
[ 3.190242] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43602-pcie for chip BCM43602/2
[ 3.191788] brcmfmac 0000:03:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.Apple Inc.-MacBookPro14,3.txt failed with error -2
[ 3.191817] brcmfmac 0000:03:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2
[ 3.540820] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43602-pcie for chip BCM43602/2
[ 3.540863] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 3.541674] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43602/2 wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c
[ 3.697394] brcmfmac 0000:03:00.0 wlp3s0: renamed from wlan0
[ 3.771830] Bluetooth: hci0: BCM: 'brcm/BCM.hcd'
我该怎么办？我已经安装了驱动程序，但由于某种原因，我无法连接到互联网。