g952t 5.1.1 Initializating zTool… error (0)

Waiting ADB device… OK
Reading phone info…
Model: SM-G925T
Android version: 5.1.1
Product code: SM2G925TZKATMB
Phone version: G925TUVU3DOJ7
PDA version: G925TUVU3DOJ7
CSC version: G925TTMB3DOJ7
CSC country code: USA
CSC sales code: TMB
HW version: REV0.2
Phone S/N: R58G90TA7MV
Modem board: SHANNON333
RF cal date: 20150911
IMEI:
Checking Super user right… true
Initialization AT RIL… OK
Check version… OK
Initializating zTool… error (0)
Done with Samsung Tool PRO v.24.3

i want read cert and unlock.