SM-J730f Unlock Failed

Operation: Unlock
Selected model: SM-J730F
Software version: 32.4

Waiting ADB device... OK
Reading phone info...
Model: SM-J730F
Android version: 7.0
PDA version: J730FXWS2ARA2
CSC version: J730FOJV2ARA1
Phone version:
Product code:
CSC country code: KSA
CSC sales code: KSA
Phone SN: RF8K32KXB4T
IMEI: 3536450xxxxxxx
HW version: MP 0.500
RF cal date: 20180320
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2018-01-01
Boot Warranty bit: 1
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Reading data... OK
Detecting MODEM... OK
Reading MODEM... OK
Calculating... OK
Writing zTool... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... error (1 19)
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... error (0)
Try downgrade modem if possible

Done with Samsung Tool PRO v.32.4




How to fix this error, may someone can help me.


thanks..