g930f unlock prob u4

Model: SM-G930F
Android version: 8.0.0
PDA version: G930FXXS4ESAE
CSC version: G930FEVR4ERKF
Phone version: G930FXXU4ESAE
Product code: SM-G930FEDAEVR
CSC country code: UK
CSC sales code: EVR
Phone SN: R58J63B189D
IMEI: 35962***********
HW version: MP 0.800
RF cal date: 20170615
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2019-02-01
Boot Warranty bit: 1
SIM State: ABSENT
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... OK
Reading data... error (1)
Initialization zTool... error (0 1)
Try downgrade modem if possible
Done with Samsung Tool PRO v.36.2