problem unlock samsung g920t


need help 4 unlock g920t im tray with old security & new security
always error

Gathering phone info…
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-G920T
Sales Code: TMB
Country Code: USA
Timezone: Africa/Casablanca
Android Version: 5.1.1 [LMY47X]
Build Date: Mon Nov 30 10:58:17 KST 2015
PDA Version: G920TUVS3DOJC [october 2015, revC]
Phone Version: G920TUVS3DOJC [october 2015, revC]
CSC Version: G920TTMB3DOJC [october 2015, revC]
Board Platform: EXYNOS5
Modem Platform: SHANNON333
Serial Number: RF1D45EJGGR
Imei: 359462061386214
Battery Status: 4.08V (69%)
Network Type: GSM
SIM Status: ABSENT
Knox Version: v30
Warranty Bit: 1

Reading Codes…
Using new security.
Reading and storing secure image. Be patient! Do NOT disconnect the phone!
Checking secure image.
Preparing.
Calculating. Be patient! Do NOT disconnect the phone!
Unable to unlock.
Finished at local time: [03.05.16 17:25:54]
WorkID: 9603906