sc-02h fail to read code from server

what to do?


Waiting ADB device... OK
Reading phone info...
Model: SC-02H
Android version: 7.0
PDA version: SC02HOMU1BQL3
CSC version: SC02HDCM1BQL3
Phone version: SC02HOMU1BQL3
Product code: SM-G935DZWADCM
CSC country code: JP
CSC sales code: DCM
Phone SN: RF8H512LKMX
IMEI: 35681707xxxxxxxx
HW version: REV0.4
RF cal date: 2016.05.12
Chip name: MSM8996
Modem board: MSM8996
Security patch: 2017-12-01
Boot Warranty bit: 0
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... 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 from phone... OK
Searching Ramdump interface... COM5 detected
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... error (1)
Done with Samsung Tool PRO v.33.5