Samsung galaxy a7 sm-a7000 need help for rooting

Dear All,

After many research and tries. I am not able to root my Galaxy A7 purchased in China.
Here below are some infos :
Model Number : SM-A7000
Android version : 4.4.4.
Baseband Version : A7000ZCU1AOH3
Kernel Version : 3.10.28-4716428 dpi@SWHD7511 #1 Wed Aug 19 18:21:57 KST 2015
Buil Number : KTUP84P.A7000ZCU1AOH3
Se for Android status : Enforcing SEPF_SM-A7000_4.4.4_A042 wed aug 19 18:22:10 2015
Knox Version : Knox 2.2 Standard SDK 5.2.0 Premium SDK 2.2.0 Customization SDK 2.0.0 Container 2.2.0 CEP 2.0.0 SE for Android 2.2.0 SS0 2.1.1 TIMA 3.0 VPN 2.2.0
FCC certification : FCC ID : A3LSMA7000

Of course It is currently not possible to install a google account on this mobile.

If somebody has a solution to reove the ROM to put another or just set up google account he will be welcome!!!!

Thanks in advance for your help.