i think GCKEY Keep my credits i cannot unlock this LG

Using Version...1.0.0.0062
Selected Model LG Android
Selected Task TMB Unlock(ADB)

Searching ADB device Please wait..
Device Detected...
SELinux := Enforcing
model:= LGMP260
LG TMB Unlocking Started...
SU Version..2.82:SUPERSU
Device is Secure Rooted..uid=0
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