Lenovo K5 note Bootloader unlock

[zoram_luffy]

I just bought a lenove vibe k5 note A7020a48 . I tried rooting it using ADB but when i reach the part where i need to unlock my bootloader using fastboot i get this
(bootloader) Unsupportive project for unlock
any help on how to do this . I did go through the XDA forums but could not find a solution to this.

Note : "Enable OEM unlock" option in the developer option is ON

 

[baburocks]

preloader and uboot is needed

https://www.youtube.com/watch?v=YS1GFPJB53Q

 

[GrimReaper76]

ummm but this video is for k4 note not k5 note we need BL unlocked in MM version aslo

 

[baburocks]

Yes its k4 note video oly....need to edit in preloader.bin but its risk...it may cause hard brick