Download the root file kernel For root the Galaxy J1 SM-J105F
Model Number : SM-J105F
Android Version : Lollipop (5.1.1)
Extract the kernel placed in this post after download and Flash the file in the pda section in the odin software.
This file is only for Galaxy J1 SM-J105F model, dont use this file for other models .if use it can damaged your device