G925T repair error

I tried to repair it :

Waiting ADB device... OK
Reading phone info...
Model: SM-G925T
Android version: 5.1.1
Product code:
Phone version:
PDA version: G925TUVU2COF8
CSC version: G925TTMB2COF8
CSC country code: USA
CSC sales code: TMB
HW version:
Phone S/N:
Modem board:
RF cal date:
Checking Super user right... true
Initialization AT RIL... error
Done with Samsung Tool PRO v.24.4

I patched certificate , I reset EFS .