0

I used to have another version of Ubuntu on my old MacBook Pro and one day Wi-Fi disappeared with the "No Wi-Fi Adapter Found" in the Settings. I tried to follow various options found on different forums and it didn't help. I installed Ubuntu 22.04, but the problem is the same.

I enclose results for the commands: lshw -c network(photo 1), lspci (photo 2), sudo dmesg |grep b43, rfkill list all, grep b43 /etc/modprobe.d/*(photo 3), lspci -vvnn | grep -A 9 Network(photo 4).

enter image description here

I downloaded a file from here (http://www.lwfinger.com/b43-firmware/?C=D;O=A), but I don't know where I should locate it.

upd. after sudo dmesg | grep b43 - the following answer

Yuliia
  • 1

1 Answers1

0

Download this package to your desktop: http://www.lwfinger.com/b43-firmware/b43fw_508.tar.gz

Right-click it and select ‘Extract Here.’ Now, from the terminal:

cd /usr/lib/firmware
sudo mkdir b43
sudo cp ~/Desktop/b43fw_508/b43/*  b43
sudo modprobe -r b43 && sudo modprobe b43

Once your internet is restored, let’s install the latest versions of the firmware:

sudo apt update
sudo apt install –reinstall firmware-b43-installer
chili555
  • 60,188
  • thank you for readiness to help! the thing is that I don’t have an Internet connection on the laptop, so should I download it to a USB? and where should I put it on the laptop then? – Yuliia Mar 27 '23 at 03:51
  • Use a USB key and place it on your desktop. – chili555 Mar 27 '23 at 12:01
  • Thank you loads! I did it and the software has been upgraded, yet the result is the same: "no Wi-Fi adapter found".. :( in the Terminal, all of that "sudo" lines should have been as different commands after "usr/..", right? – Yuliia Mar 29 '23 at 23:44
  • so, I connected my phone as a "wired Internet" (and downloaded directly to the laptop, placing it on my desktop). The thing is that when this whole problem with adapter happened, the line "Wi-Fi" disappeared from Settings. So, I should search for it. It's written "No Wi-Fi Adapter Found. Make sure you have a Wi-Fi adapter plugged and turned on". if it helps somehow :( – Yuliia Mar 29 '23 at 23:57
  • or maybe the problem was in the amount of spaces used? can it be a problem in Linux syntax? – Yuliia Mar 30 '23 at 00:01
  • I assume you have the b43 firmware installed as above. May we see: sudo dmesg | grep b43 – chili555 Mar 30 '23 at 01:56
  • I have edited the post and added the answer! – Yuliia Apr 01 '23 at 01:16
  • seems like the changes weren't saved :( now they are (: – Yuliia Apr 02 '23 at 01:53