j500h unlock error

unlock done in 3 second but phone is asking for unlock code again
this model use 2 sincard

Operation: Unlock
Selected model: SM-J500H
Selected port: COM1323 SAMSUNG Mobile USB Serial Port
Software version: 26.2

Reading phone info…
Reading IMEI… OK
IMEI: 3579500767XXXXX
Unlocking… OK
Reseting… OK
Unlock done

Done with Samsung Tool PRO v.26.2