The problem has been solved.
I have read information from Ubuntu forums and found that the problem was that "sudo modprobe wl" couldn't work because the Secure boot in BIOS.
After disabling the Secure Boot, I was able to run "sudo modbprobe wl" and wi-fi begun work.
In reality I run the command:
sudo apt-get --reinstall install bcmwl-kernel-source
but may be was not necessary, may be the problem was only the Secure Boot, but I don't understand so much these things.
Thanks for the help, Ubuntu. Without the information in internet, shouldn't be possible for me to eliminate Windows from my computers.
The problem has been solved.
I have read information from Ubuntu forums and found that the problem was that "sudo modprobe wl" couldn't work because the Secure boot in BIOS.
After disabling the Secure Boot, I was able to run "sudo modbprobe wl" and wi-fi begun work.
In reality I run the command:
sudo apt-get --reinstall install bcmwl-kernel-source
but may be was not necessary, may be the problem was only the Secure Boot, but I don't understand so much these things.
Thanks for the help, Ubuntu. Without the information in internet, shouldn't be possible for me to eliminate Windows from my computers.