How can I lock bootloader in Sony Xperia XZ2?
I wanted to update to Android 12 as internet banking app does not support Android 10 anymore - the last version officially provided by Sony.
There is a good unlocking-walkthrough at developer.sony.com which I have followed, but not a word about locking the bootloader back.
Now stuck with unlocked bootloader - I can't pay using NFC and some apps do not allow login.
