ROOT for Samsung Galaxy Note 3 LTE (N9005) - Singapore model.

Hey guys, I have been searching around the internet for a ROOT method for my Samsung GALAXY NOTE 3 LTE (N9005) but all the root methods found in XDA or internet, doesn't suit for my AP, CP or CSC. :crying:
I also tried KINGOROOT, after 100%, it shows ROOTED but when I checked for ROOT status, it didn't root at all.

I hope I could receive help from you all... And if it is possible, is there any rooting method that can also prevent KNOX(0x0) from tripping. I tripped mine to 0x1 after using KINGROOT.
Really appreciate your help, thank you so much! :(

From the dialpad, *#1234# -
Android version: 5.0 LOLLIPOP
(Bootloader) AP: N9005DXUGBOF1
(Baseband) CP: N9005DXUGBOA3
PDA, CSC: N9005OLBGBOF1

Build: LRX21V.N9005DXUGBOF1

SM-N920I from Singapore with no Region sticker

I bought my 920i off of eBay, it came from Singapore and there was no region sticker on the box like my previous international phones. Is the Singapore version not a true international version or is it not region locked? Has anyone who bought the 920i from Singapore had the region sticker on their box?