J710m unlock error

Operation: Unlock
Selected model: SM-J701M
Software version: 30.9

Waiting ADB device... OK
Reading phone info...
Model: SM-J701M
Android version: 7.0
Product code: SM-J701MZSLCDR
Phone version: J701MUBU1AQF8
PDA version: J701MUBU1AQF8
CSC version: J701MUWA1AQH1
CSC country code: Dominican Republic
CSC sales code: CDR
HW version: MP 0.400
Phone SN: RF8JB2D4DDN
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2017-06-01
RF cal date: 20171118
IMEI: 351573XXXXXXXXX
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