sorry for double post
I managed after all to unlock it with Z3x tool v14.9
here is log
Code:
Selected model: I9300
Selected port: COM5 Z3X BOX Serial Port
Selected port speed: 115200
Reading phone info...
Model: GT-I9300
Android version: 4.1.2
Product code: GT-I9300TADFTM
Phone version: I9300BVELK1
PDA version: I9300XXELLA
CSC version: I9300FTMELL1
IMEI: Unknown
Checking Super user right... true
Reading data from phone... OK
Unlocking... OK
Rebooting phone... OK
Unlock done
Done with Samsung Tool v.14.9