LGH830 T-mobile not unlock.

HI TEAM/SUPPORT
this model not unlock.require root. why?
its factory unlock or temporary?
please fix this issue asap.

log is here.
--------------------------------------------------------
4/7/2018 8:24:14 PM: Mode: Normal
4/7/2018 8:24:14 PM: Model: LGH830AT
4/7/2018 8:24:14 PM: Build version: Aug 24 201617:51:56Jul 10 201619:00:00LGH830AT
4/7/2018 8:24:14 PM: SW Version: MPSS.TH.2.0.c1.4-00032-M8996FAAAANAZM-1.63052.1
4/7/2018 8:24:14 PM: IMEI: 35882907******
4/7/2018 8:24:14 PM: BlueTooth Address: 00:00:00:00:00:00
4/7/2018 8:24:14 PM: Phone Code:
4/7/2018 8:24:14 PM: Elapsed: 1 secs. --> (v9.48)
4/7/2018 8:24:14 PM:
4/7/2018 8:24:14 PM: Checking Login and Password...
4/7/2018 8:24:37 PM: OK
4/7/2018 8:24:37 PM: Ballance:
4/7/2018 8:24:37 PM: 35 crd.
4/7/2018 8:24:39 PM: You have 35 credit(s) left. This operation takes 10 credits.Continue?
4/7/2018 8:24:39 PM: Yes
4/7/2018 8:24:41 PM: Searching modem interface...
4/7/2018 8:24:41 PM: found COM54
4/7/2018 8:24:41 PM: Reading data from phone...
4/7/2018 8:24:41 PM: OK
4/7/2018 8:24:41 PM: IMEI: 35882907******
4/7/2018 8:24:44 PM: Checking root rights...
4/7/2018 8:24:44 PM: fail
4/7/2018 8:24:44 PM: Elapsed: 5 secs. --> (v9.48)
4/7/2018 8:24:44 PM:
4/7/2018 8:24:56 PM: Mode: Normal
4/7/2018 8:24:56 PM: Model: LGH830AT
4/7/2018 8:24:56 PM: Build version: Aug 24 201617:51:56Jul 10 201619:00:00LGH830AT
4/7/2018 8:24:56 PM: SW Version: MPSS.TH.2.0.c1.4-00032-M8996FAAAANAZM-1.63052.1
4/7/2018 8:24:56 PM: IMEI: 35882907******
4/7/2018 8:24:56 PM: BlueTooth Address: 00:00:00:00:00:00
4/7/2018 8:24:56 PM: Phone Code:
4/7/2018 8:24:56 PM: Elapsed: 1 secs. --> (v9.48)
4/7/2018 8:24:56 PM:
4/7/2018 8:24:56 PM: Checking Login and Password...
4/7/2018 8:24:58 PM: OK
4/7/2018 8:24:58 PM: Ballance:
4/7/2018 8:24:58 PM: 35 crd.
4/7/2018 8:25:03 PM: You have 35 credit(s) left. This operation takes 10 credits.Continue?
4/7/2018 8:25:03 PM: Yes
4/7/2018 8:25:06 PM: Searching modem interface...
4/7/2018 8:25:06 PM: found COM54
4/7/2018 8:25:06 PM: Reading data from phone...
4/7/2018 8:25:06 PM: OK
4/7/2018 8:25:06 PM: IMEI: 35882907******
4/7/2018 8:25:07 PM: Checking root rights...
4/7/2018 8:25:07 PM: fail
4/7/2018 8:25:07 PM: Elapsed: 4 secs. --> (v9.48)
4/7/2018 8:25:07 PM:

thank you