lg tmobile unlock

how to unlock this phone
please guide me
after root can i unlock

Code:

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Using Version...1.0.0.0059
Selected Model LG Android
Selected Task TMB Unlock(ADB)

Searching ADB device Please wait..

!!! Phone is in offline !!! ACCEPT CONNECT IN PHONE OR RECONNECT...
Device Detected...
SELinux := Enforcing
model:= LG-H830
LG TMB Unlocking Started...
Device is not rooted
Reading Please Wait..
Must have Root or Permissive boot/firmware to make Read ASK..

!!! Fail !!!!
Restart Phone if not auto...
Total Time Take...00:00:00

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