4. Update Raspbian/Armbian, including the kernel and firmware, followed by a reboot:
```
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get upgrade
sudo reboot
```
5. Set the WiFi country in raspi-config's / armbian-config's **Localisation Options**: `sudo raspi-config` or `sudo arbmian-config` for RasperryPi or OrangePi respectively.