Thanks for your reply. Has there been any issue like video calling (Telegram/Whatsapp) & video recording (using camera)?

I bought Mi A2 recently and willing to install ubuntu touch. Got to know that 4G cellular connection doesn't work on this device. Is it true? Can any of you able to connect to internet using your 4G SIM card on the device?

https://www.youtube.com/watch?v=0t4UE4SiEL8