Wifi is not working.Linux

Hello. I have Linuxmint 20. I downloaded and put files from download a to the place described. Reboted. And I have no effect. I have Bluetooth. I have wifi, when I run windows on this PiX, but I can’t make it work on the Linux.
Please help.

Thank you for your attention.


So, it is not only my problem, it is a more common problem.
Are there any ways to fix it?

Thank you for your attention


Yes, it is written there. Follow those instructions.

Thank you so much.
Now I found it .

So, I renamed the file. Reboot, and now everything working! Great! Thank you!