LG LS777 V9 its a devil too sprint security firmware kill unlocker

Using Version...1.0.0.0055
Selected Model LG Android
Selected Task SAMSUNG SPRINT UNLOCK

Searching ADB device Please wait..
Device Detected...
SELinux := Enforcing
model:= LG-LS777
Androids Version:= 7.0
Description Version:= sf340_spr_us-user 7.0 NRD90U 17297201850b6 release-keys
Platform:= msm8937 [ sf340 ] [ ]
Baseband:= MPSS.TA.2.3.c4-00002-8940_GEN_PACK-1.84083.1.115268.1
Factory Ver := LGLS777AT-00-ZV8-SPR-US-OCT-24-2017-ARB02+06
Model & Firmware Ver := LS777ZV8
Security Patch := 01-10-2017
Simstatus:= NETWORK_LOCKED
ANDROID-ID = LGLS777f47e9a83_00007B1800
Device is not rooted
SAMSUNG ALL SPRINT UNLOCKING STARTED...
Please Wait while...
Checking Data...
Waiting for Loader...
Loader Ok...
dbg...FY3LEQAhCENbwshHjwvYf0sbxmGE5BE8du7FKjTMAx8W 3KlCAn6oFC7dy04RSFwo/YJtunGHgoMK/97CnNw9G8xS9PjxotwmeyhpUXmkH2+RYLdgvEN0prh65gkkj4X nF31EK/MH
!!! Fail !!!!

Restart Phone Manually if not done auto...
Total Time Take...00:00:26
Log Saved sprint begin a devil what the ****