g935f repair imei

hello bro help me please ?

aiting ADB device... OK
Reading phone info...
Model: SM-G935F
Android version: 8.0.0
PDA version: G935FXXU2ERD5
CSC version: G935FOXA2ERD5
Phone version: G935FXXU2DRAG
Product code: SM-G935FZWAITV
CSC country code: ITALY
CSC sales code: ITV
Phone SN: RF8H31RMG7L
IMEI: 357124951681532
HW version: MP 0.801
RF cal date: 20160316
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2018-04-01
Boot Warranty bit: 0
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.34.5