Trouleshooting BCM43142a0 Wi-Fi Not Installed Issue on Ubuntu 18.04 LTS 'Solved'

Are you experiencing issues with your Broadcom Corporation BCM43142 802.11ac Wireless Dual Band adapter not being recognized or installed on your Ubuntu 18.04 LTS system? This problem is more common than you might think, especially for new users who have recently switched from other Linux distributions.

Fortunately, there are several methods to resolve this issue without resorting to reinstallation of the entire operating system. In this article, we will walk through each step-by-step solution so that even a beginner can easily follow along and get their Wi-Fi working again!

Solution 1: Install Wireless-Bcm43142-Dkms Package from Tar.bz2 File

One simple yet effective way is to download and install the wireless-bcm43142-dkms package directly from its tarball file. Here are the steps:

1. Open your preferred web browser (e.g., Firefox or Chrome) and navigate to 'here'(https://01.org/~jwrtsnch/BCM43142-Firmware#Downloads).

2. Click on 'wireless-bcm43xx-6_20_55.bztar' link under the appropriate architecture section for your system.

3. Once downloaded, go to where you saved it (e.g., Downloads folder) and extract its contents using tar command as follows:

```bash

tar -xvf wireless-bcm43142-dkms6_20_55.tar.bz2

```

4. Change into newly created directory: `cd firmware-6.20.55`

5. Now, use dpkg to install the extracted package:

```bash

sudo dpkg -i *.deb

```

6. Finally, restart your computer for changes to take effect.

Solution 2 (Alternative): Manually Install BCM43142A0 Firmware

If Solution 1 above fails or does not work as expected due to various reasons such as missing dependencies or corrupted packages during installation process; don't worry! There's always another way out. Follow these steps instead:

1. Open your terminal and navigate to the directory where you downloaded the tarball file.

2. Extract its contents using tar command (if not already done):

```bash

tar -xvf wireless-bcm43142-dkms6_20_55.tar.bz2

```

3. Change into newly created firmware-6.x.y subdirectory:

```bash

cd firmware-6.20.45

```

4. Copy the required BCM43142A0 firmware file to /lib/firmware/brcm/ directory using cp command as follows:

```bash

sudo cp Broadcom-BT-firmware/BCM43142A0_1c.btsudo cp -r Broadcom-BT-firmware/

```

5. Finally, restart your computer for changes to take effect.

In conclusion, resolving BCM43142a0 Wi-Fi not installed issue on Ubuntu 18.04 LTS is relatively easy once you know what steps to follow. In this article, we have covered two different solutions that can help resolve this common problem without resorting to a full system reinstallation. If none of these methods work for some reason or another; feel free to post your questions in the comments section below and I'll be happy to assist further!

Bcm43142a0 not installed