Xiaomi has officially announced that they have started locking bootloaders for few of their smartphones. As of now the three phones which are locked, are Redmi Note 3, Mi 4C and Mi Note Pro. They locked the bootloaders for security reasons, to protect the phone and data from malware and other malfunctions. But doing this also brings some limitations for users, or we can say it has some Advantages and Disadvantages.
Locking the Bootloader removes Root access, removes the Recovery Mode, restrict you to flash fastboot rom, etc. You will now need to use Xiaomi Official PC Suite to carry out all those processes.
But nothing to worry about. We can still unlock the Bootloader, and that too Officially. You can go through these Guide showing the step by step process of Unlocking Bootloader using official Xiaomi MiFlash Unlock Tool. If you are using any of those three smartphones mentioned above, you must need it. Go ahead and download it right away.