Installing LineageOS on Xiaomi Mi Mix 3

I am using an (now 5 years old) Xiaomi Mi Mix 3 as a backup phone for travelling. Given its age, the phone is no longer receiving official updates from Xiaomi, which poses security risks and limits access to new features. To address this, I installed LineageOS, a popular custom ROM that provides regular updates and enhanced privacy features a couple of years back. Recently, I&rsquo;ve updated the…