I'm a complete novice in Ubuntu, although I have installed Ubuntu 20.04 on an old laptop which went straightforward, and don't know programming language either.(I just read threads and follow/copy the instructions) I recently replaced my laptop's (HP pavilion 17" Beatsaudio) RAM (from 6GB to 16GB) and put a new SSD hard disk in, because it was getting really slow, although everything functioned, including wifi. With a bootable usb-stick I installed Ubuntu 20.04. But since then I don't manage to make wifi working. I don't think I damaged anything while swapping RAM and SSD.
After searching I found and tried several solutions, but nothing worked. I also tried Ubuntu 20.04 but same result: no wifi found. Then I found what I believed the 'exact' problem that I have (because the person wrote about the identical 'broadcom device, including type' that I have. So just to be sure I didn't mess anything up in my previous attempts, I 'freshly reinstalled Ubuntu 24.04' and then followed this thread exactly.
https://github.com/Niels-van-den-Hork/ubuntu-wifi-broadcom-bcm43142-802.11b-g-n which led me to: Installing Broadcom Wireless Drivers (the steps in this last link I also saw in several youtube video's.) Unfortunately still no WIFI.....
Does anybody have a step by step explanation/solution for me? I can make printscreens of certain basics/info if necessary. Here's a few that I 'used' already during my search for a solution:
lspci -vnn | grep Network
08:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
iwconfig
lo no wireless extensions.
eno1 no wireless extensions.
udo apt install bcmwl-kernel-source
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
bcmwl-kernel-source is already the newest version (6.30.223.271+bdcom-23ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.
UNDER THIS ONE THERE'S A LOT OF INFO, BUT THE PART REGARDING BROADCOM:
lshw
-pci:2
description: PCI bridge
product: 8 Series PCI Express Root Port 3
vendor: Intel Corporation
physical id: 1c.2
bus info: pci@0000:00:1c.2
version: e4
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:42 memory:b2500000-b25fffff
-network UNCLAIMED
description: Network controller
product: BCM43142 802.11b/g/n
vendor: Broadcom Inc. and subsidiaries
physical id: 0
bus info: pci@0000:08:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: cap_list
configuration: latency=0
resources: memory:b2500000-b2507fff
-pci:3
description: PCI bridge
product: 8 Series PCI Express Root Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: e4
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:43 ioport:3000(size=4096) memory:b2400000-b24fffff
-network
description: Ethernet interface
product: RTL810xE PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eno1
version: 08
serial: 6c:c2:17:63:40:3c
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
rfkill
ID TYPE DEVICE SOFT HARD
0 bluetooth hci0 unblocked unblocked
