g530t error unlocking

Checking Login and Password... OK
Ballance: 40 crd.
You have 40 credit(s) left. This operation takes 10 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G530T
Android version: 5.1.1
PDA version: G530TUVU1AOF8
CSC version: G530TTMB1AOF8
Phone version: G530TUVU1AOF8
Product code: SM2G530TZAPTMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R28GB0FWMKE
IMEI:
HW version: REV0.1
RF cal date: 2015.11.04
Chip name: MSM8916
Modem board: MSM8916
Boot Warranty bit: 1
Checking Super user right... true
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... error (4.7.1)

Done with Samsung Tool PRO v.32.4