Comment by Abishek_Muthian
5 years ago
Didn't 'Knox' mess that up for newer phones? Anyways, couple of Samsung A/J series phones does seem to work well with PostmarketOS but unfortunately display brightness cannot be adjusted making it a hard choice.
You'll void your warranty and never be able to use Knox again if you switch back to Samsung firmware once you unlock bootloader. But no, Knox doesn't prevent you from unlocking bootloader in any way.