G935f unlock error january 2018 security

Checking hash file... OK
Searching Samsung modem... detected COM136
Reading phone info... OK
Model: SM-G935F
AP version: G935FXXS2DRAA
CSC version: G935FEVR1DQJ1
CP version: G935FXXU2DRA9
Product code: EVR
Phone SN: RF8J216CKCY
Unique number: CE01171145F1D82B04
Searching Samsung diag port... detected COM144
Reading phone info... OK
CP version: G935FXXU2DRA9
CP build: Jan 15 2018 16:41:09
Reading data from phone... error (1)

Done with Samsung Tool PRO v.30.8


Any solution to this