Ubuntu 20.04 does not have MediaTek driver MT7921 for WIFI & Bluetooth?

I bought a new laptop "Acer Aspire 5 A515-56-555H" with default OS - Windows 10 which running fine with all devices.

I manage to install Ubuntu 20.04 in separate disk partition, but WiFi and bluetooth do NOT work.

I notice Ubuntu 20.04 does not have Media Tek MT7921 driver for WIiFi and bluetooth.

How can I download & install the drivers?

Is there anyone who can help me?

I also met similar problems with MediaTek wifi, MT79xx. I bought a ASUS laptop having that device. It didn't work in Ubuntu, 20.04. I tried various ways floating around the internet, installed several linux versions, did many things but failed at last. I spent a whole day.

I know that if you upgrade kernel module from 5.8 to 5.12 it should work as the kernel has the drivers supporting that device. But evem that didn't work for me. I think it has some bugs maybe.

I did learn that we can check whether any laptop is certified to work properly by Ubuntu: https://ubuntu.com/certified/laptops

You must upgrade the Linux kernel to 5.14, and the rest of Ubuntu to 21.04.

How to upgrade from Kernel 5.11 to 5.14 click here

How to upgrade from Ubuntu 20.04 to 21.04 click here

I was having the same issue on TUF A17. It has MT7961 chipset. I was able to fix it with updating to latest kernel release (5.15-rc6):

wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15-rc6/amd64/linux-headers-5.15.0-051500rc6-generic_5.15.0-051500rc6.202110180730_amd64.deb
wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15-rc6/amd64/linux-headers-5.15.0-051500rc6_5.15.0-051500rc6.202110180730_all.deb
wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15-rc6/amd64/linux-image-unsigned-5.15.0-051500rc6-generic_5.15.0-051500rc6.202110180730_amd64.deb
wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15-rc6/amd64/linux-modules-5.15.0-051500rc6-generic_5.15.0-051500rc6.202110180730_amd64.deb
sudo dpkg -i *.deb
sudo reboot now