This driver is for MateBook13 Ubuntu 18, other MateBook using RTL8822CE PCIe may also be working, but I have not tested yet.

If you are installing the Wi-Fi driver from a fresh Ubuntu, first connect to a mobile phone hotpot through Bluetooth and update apt, then install dkms.

• Connect mobile phone to the laptop through Bluetooth
• Open laptop's quick link menu from the top right conner, connect to internet through mobile phone. Now the laptop is connecting to internet
• Open a terminal:

sudo apt update
sudo apt install dkms

• Download this repository as a zip file from anyother PC, and unzip it to the laptop's Document folder.
• In the Document folder, open a terminal:

sudo cp rtl88x2ce-dkms/rtw88_blacklist.conf /etc/modprobe.d/rtw88_blacklist.conf
sudo mkdir /usr/src/rtl88x2ce-35403
sudo cp -Rv rtl88x2ce-dkms/* /usr/src/rtl88x2ce-35403/
sudo dkms add -m rtl88x2ce -v 35403
sudo dkms build -m rtl88x2ce -v 35403
sudo dkms install -m rtl88x2ce -v 35403

After finishing these steps, then reboot the laptop, the Wi-Fi should be working then.

IF your laptop already have access to the internet(eg., via ethernet cable), then you could try any one of the methods bellow:

echo 'deb https://gitlab.com/patojad/repository/raw/patojad/debs/ patojad main' | sudo tee /etc/apt/sources.list.d/patojad.list
wget -qO - https://gitlab.com/LynxOS/repository/raw/lynxos/LynxPub.gpg | apt-key add -
sudo apt update
sudo apt install rtl88x2ce-dkms

wget https://github.com/juanro49/rtl88x2ce-dkms/releases/download/5.7.3_35403_20210523/rtl88x2ce-dkms_35403_amd64.deb
sudo dpkg -i rtl88x2ce-dkms_35403_amd64.deb

git clone https://github.com/juanro49/rtl88x2ce-dkms.git
sudo cp rtl88x2ce-dkms/rtw88_blacklist.conf /etc/modprobe.d/rtw88_blacklist.conf
sudo mkdir /usr/src/rtl88x2ce-35403
sudo cp -Rv rtl88x2ce-dkms/* /usr/src/rtl88x2ce-35403/
sudo dkms add -m rtl88x2ce -v 35403
sudo dkms build -m rtl88x2ce -v 35403
sudo dkms install -m rtl88x2ce -v 35403

Enable the driver: sudo modprobe rtl88x2ce If not working, just reboot to make your life easy. Or, just continue Google if you like :)

• Network controller: Realtek Semiconductor Co., Ltd. RTL8822CE 802.11ac PCIe Wireless Network Adapter

• Soure and more driver could be downloaded with guides from this repo.