Samsung N920T Unlock after Imei Null!! Help


Samsung n920t unlock after imei become null!!

Anyone Face this problem? please Guide me if you know.

Here is Log

Quote:

Operation: Unlock
Selected model: SM-N920T
Software version: 24.0

Waiting ADB device…
Please, allow USB debugging on phone… OK
Reading phone info…
Model: SM-N920T
Android version: 5.1.1
Product code: SM-N920TZWATMB
Phone version: N920TUVS2COKC
PDA version: N920TUVS2COKC
CSC version: N920TTMB2COKC
CSC country code: USA
CSC sales code: TMB
HW version: REV0.2
Phone S/N: RF8GA02H87L
Modem board: SHANNON333
RF cal date: 20151002
IMEI:
Checking Super user right… true
Check version… OK
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

Done with Samsung Tool PRO v.24.0


Thanks in Advance