S6 EDGE+ G928C unlock fail

Waiting ADB device… OK
Reading phone info…
Model: SM-G928C
Android version: 5.1.1
Product code: SM-G928CZDATHL
Phone version: G928FXXU2AOK7
PDA version: G928CXXU2AOKA
CSC version: G928COLB2AOKA
CSC country code: THAILAND
CSC sales code: THL
HW version: MP 0.500
Phone S/N: R58G80NQKAK
Modem board: SHANNON333
RF cal date: 20150812
Checking Super user right… true
Initializating zTool… OK
Running zTool, please wait… error (7.7.8)
Done with Samsung Tool PRO v.22.9 or Done with Samsung Tool PRO v.23.8…
help? not ok unlock 🙁