samsung g928T imei nulll

hi i was unlocking a samsung g928t, and i did not make an back up of anything, when it finish unlock the phone has imei null

if anyone has a security backup i realy need it,, i have octopus box too

Operation: Unlock
Selected model: SM-G928T
Software version: 23.8
Waiting ADB device… OK
Reading phone info…
Model: SM-G928T
Android version: 5.1.1
Product code:
Phone version:
PDA version: G928TUVU2COI5
CSC version: G928TTMB2COI5
CSC country code: USA
CSC sales code: TMB
HW version:
Phone S/N: R58GB0EXNYD
Modem board:
RF cal date:
Checking Super user right… true
Initializating zTool… OK
Running zTool, please wait… OK
Reading nv data… OK
Checking NV data… OK
Calculating… OK
Writing nv data… OK
Rebooting phone… OK
Unlock done