Need modem for unlock G935F

Need modem for unlock thanks!

Waiting ADB device... OK
Reading phone info...
Model: SM-G935F
Android version: 7.0
PDA version: G935FXXU2DRB6
CSC version: G935FATO2DRB5
Phone version: G935FXXU2DRB6
Product code: SM2G935FZKAATO
CSC country code: Austria
CSC sales code: ATO
Phone SN: RF8H60DM51T
IMEI: 352204080657697
HW version: MP 0.801
RF cal date: 20160606
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2018-02-01
Boot Warranty bit: 1
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Reading data... OK
Detecting MODEM... OK
Reading MODEM... OK
Calculating... OK
Initialization data... OK
Writing zTool... 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... error (1)
Initialization zTool... error (0 1)
Try downgrade modem if possible

Done with Samsung Tool PRO v.33.2