Samsung m127g kg lock 01 solution tested with my job from Gsmkhmersolution, sm-m127g unlock bootloader instant no need wait one week or two week, after booloader unlocked you can flashing firmware knox of remove kg lock 01 solved, Phone no relock you can factory reset but you don't flashing other firmware. 

How to Flashing Samsung M127G U3 KG Locked (01)
-Its like Samsung official firmware you can use Odin3 for flashing , phone must be bootloader unlocked, how to unlock Samsung phone bootloader oem must be off and Frp also in off status , put phone in download by press volume up and down while these keys pressed connect usb cable to phone your phone will be in download mod , Open odin3 and Choose Files ( BL,AP,CP,CSC ). 

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