What Android version? If 6.x then there is no current working root apparently. If you still have 5.x then you can use KingRoot.
There is an experimental way to do this as I cannot find a stock ROM for v930, there is a thread that shows you can Odin the v935 to the v930 (compatible, though the EU version v935 is slightly different, it is completely reported to work). Then you can use KingRoot to root. However, for these devices, custom ROMs isn't on the menu yet.