[Q] cannot root please help me

hello...i just bought a phone it called EX note2 i think it was china phone maybe...i been trying to root the phone almost like 3 days but no solution at all...please help me please ...i really hoping i can root this phone..
Model number=EX`Note II
Android version=4.1.1
Baseband version=MAUI.11AMD.W12.22.SP.V15,2012/10/0820:09
Kernel version=3.4.0 root@xxd))#1 SMP PREEMPT SAT NOV 24 15:35:15 CST 2012
BUILD NUMBER:E1901_v77_jbla668_9p017_20121124
ps:sorry for my bad english