Hello, thanks for answer!
i tryied to unlock it in both ways, adb and download mode, so i lost 20 credits (10 already refund) here is the other history, it say its done but phone isnt working ( like it show on the attatched picture before).
on this photo it still remind 10 credits 
Checking Login and Password... OK
Ballance: 20 crd.
You have 20 credit(s) left. This operation takes 10 credits.Continue? Yes
Model name: LM-K500UM
Software verion: K500UM20k
Android verion: 11
Target operator: LAO
Target country: COM
Chipset: mt6765
IMEI: 356240970477438
Serial: WI23S200717016075
Reading data from phone... OK
Searching server... OK
Waiting for server answer... OK
Executing... OK
Rebooting... OK
Waiting phone... OK
Phone found at COM12
Model name: LM-K500UM
Software verion: K500UM20k
Android verion: 11
Target operator: LAO
Target country: COM
Chipset: mt6765
IMEI: 356240970477438
Serial: WI23S200717016075
Reading data from phone... OK
Executing... OK
Done
Elapsed: 63 secs. --> (v9.83)