SM-J701F unlock error

Help...

Operation: Unlock
Selected model: SM-J701F
Software version: 30.9

Waiting ADB device... OK
Reading phone info...
Model: SM-J701F
Android version: 7.0
Product code: SM-J701FZDDTHL
Phone version: J701FXXU3AQL2
PDA version: J701FXXU3AQL2
CSC version: J701FOLB3AQL2
CSC country code: THAILAND
CSC sales code: THL
HW version: MP 0.400
Phone SN: RF8J8144G1W
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2017-12-01
RF cal date: 20170809
IMEI: 351569094647020
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)
Initialization zTool... error (0 1)
Try downgrade modem if possible

Done with Samsung Tool PRO v.30.9