how to unlock sm-n7505 pls

i tired to unlock phone with Samsung Tool PRO v.25.5 but it give me error

Waiting ADB device… OK
Reading phone info…
Model: SM-N7505
Android version: 5.1.1
Product code: SM-N7505ZKAXEF
Phone version: N7505XXUDOK4
PDA version: N7505POUDPB1
CSC version: N7505OXADPC1
CSC country code: France
CSC sales code: XEF
HW version: MP 0.400
Phone S/N: R58FA0YQRDT
Modem board: XMM7160
RF cal date: 2014.10.23
Checking Super user right… true
Reading nv data… OK
Checking magic… OK
Running zTool, please wait… error

Done with Samsung Tool PRO v.25.5