Samsung uses a rolling "binary" or "bit" system (e.g., U3 , U4 , H1 , H2 ).
At its most basic level, a bootloader is a program that runs every time you turn on your phone. Its job is simple but critical: it tells the device how to boot up and which operating system to load. samsung bootloader
: It checks the digital signature of the Android kernel to ensure it hasn't been tampered with. Samsung uses a rolling "binary" or "bit" system (e
Unlocking wipes all user data and trips Knox. samsung bootloader