j730f unlock fail..after root.patch level 1jan 2018

kindly assit

Operation: Unlock
Selected model: SM-J730F
Software version: 31.0

Waiting ADB device... OK
Reading phone info...
Model: SM-J730F
Android version: 7.0
Product code: SM-J730FZDDKSA
Phone version: J730FXXU2ARA1
PDA version: J730FXWS2ARA2
CSC version: J730FOJV2ARA1
CSC country code: KSA
CSC sales code: KSA
HW version: MP 0.400
Phone SN: RF8J820CTDV
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2018-01-01
RF cal date: 20170816
IMEI: 357074086340928
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.31.0


regards!