Help in Unlocking G920L Korea Variant!

The Phone is already rooted
Try to Unlock in z3x
Heres the logs

Waiting ADB device... OK
Reading phone info...
Model: SM-G920L
Android version: 7.0
Product code:
Phone version: G920LKLU3EQL1
PDA version: G920LKLU3EQL1
CSC version: G920LLUC3EQL1
CSC country code: KOREA
CSC sales code: LUC
HW version: G920L.08
Phone SN: R39G40RY8Z
Chip name: EXYNOS7420
Modem board: SHANNON333
Security patch: 2017-12-01
RF cal date: 20150428
IMEI: 358010060988091
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Initialization zTool... OK
Running zTool, please wait... OK
HWID: 88 90 1B AF B6 06 00 00 00 00 00 00 00 00 00 00
Calculating... OK
Unlocking... OK
Writing NV data... OK
Rebooting phone... OK
Unlock done

Done with Samsung Tool PRO v.31.0

Unlock Done but still no signal.
What will i do.