ubuntu cannot connect to wifi, but it is supposed to drive
my network card information is

lzj@lzj:~$ lspci -vnn -d 14e4:  
04:00.0 Network controller [0280]: Broadcom Limited BCM43162 802.11ac Wireless Network Adapter [14e4:43ae] (rev 02)
    Subsystem: Lenovo BCM43162 802.11ac Wireless Network Adapter [17aa:0622]
    Flags: bus master, fast devsel, latency 0, IRQ 255
    Memory at f0c00000 (64-bit, non-prefetchable) [size=32K]
    Memory at f0800000 (64-bit, non-prefetchable) [size=4M]
    Capabilities: <access denied>

when I tried to install the driver, I followed the https://yq.aliyun.com/articles/40316 instructions, but the make Times made more than three mistakes and could not solve

(and I seem to say that my network card model does not support mainstream drivers. Is it true.)

ask the god how to solve the problem