Z3x Not Working 8.0

G935F patch cert error 8.0

Waiting ADB device... OK
Reading phone info...
Model: SM-G935F
Android version: 8.0.0
PDA version: G935FXXS3ERJ2
CSC version: G935FODD3ERI1
Phone version: G935FXXU3ARI1
Product code: SM-G935FZDUINS
CSC country code: India
CSC sales code: INS
Phone SN: RF8H327G0EF
IMEI: 3505************
HW version: MP 0.801
RF cal date: 20170330
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2018-10-01
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... error (1)

Done with Samsung Tool PRO v.34.3