n920t problem

hello how to change imei in n920t y try and no resolve

Operation: Write CERT
Selected model: SM-N920T
Software version: 26.8

Waiting ADB device… OK
Reading phone info…
Model: SM-N920T
Android version: 6.0.1
Product code: SM2N920TZKATMB
Phone version: N920TUVU3DPG1
PDA version: N920TUVU3DPG1
CSC version: N920TTMB3DPG1
CSC country code: USA
CSC sales code: TMB
HW version: REV0.2
Modem board: SHANNON333
RF cal date: 20160315
Checking Super user right… true
Initializating zTool… OK
Running zTool, please wait…
Start… OK
Initialization… OK
Generate and check client proof… OK
Verify proof by client… OK
Reading data… error (9)

Done with Samsung Tool PRO v.26.8