Step by step – Ubuntu 16.04 Realtek RTL8723de Driver Installation

February 21, 2020 | By the+gnu+linux+evangelist.

Setting Up

2. Installing Dependencies

Then to Install Required Packages
Simply play:
```
sudo apt install linux-headers-generic build-essential dkms git
```
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
3. Downloading Realtek RTL8723de Driver

Download Realtek RTL8723de Driver for Ubuntu GNU/Linux

Realtek RTL8723de Driver Archive

Downloading Realtek RTL8723de Driver for Ubuntu

If you are using Firefox then on Prompt Choose “Open with Archive Manager”:

Or After try to Select the Package by the Downloads Button on Top Panel:

Instead, on Google-Chrome simply try to Choose the Package on the Bottom Panel:

How to Install Chrome Browser on Linux
Possibly, to Install Unzip and Extract it on Command Line Play:
```
sudo apt install unzip
```
```
unzip -d /tmp/ ~/Downloads/rtlwifi*.zip
```
4. Installing Realtek RTL8723de Driver

Then to Set up Realtek RTL8723de Wifi Driver
First, Access the Target folder:
```
cd /tmp/rtlwifi_new
```
Now to Add it:
```
sudo dkms add ../rtlwifi_new
```
Again Build it:
```
sudo dkms build rtlwifi-new/0.6
```
And Install it into Dkms with:
```
sudo dkms install rtlwifi-new/0.6
```
5. Fixing Driver

This may be Required only on Laptops
First, to Test the Receiver’s Signal Level:
```
sudo su -c "iwconfig wlan0"
```
And if it’s Below 60 then to Fix it do:
```
sudo /bin/sh -c 'echo "options RTL8723de ant_sel=2" >> /etc/modprobe.d/rtl8723de.conf'
```
6. Disabling Secure Boot

Finally, Reboot Disabling Secure Boot
Execute:
```
sudo reboot
```
On Startup Enter BIOS Disabling Secure Boot.
How to Enter BIOS on PC/Laptops

Accessing BIOS Commands

Entering BIOS Commands

Possibly to Load it Manually run:
```
sudo modprobe -v RTL8723de
```
Or on a Laptop with Fixed Setup:
```
sudo modprobe -v RTL8723de ant_sel=2
```