samsung g935f imei repair problem

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REPAIR INSTRUCTIONS:
Phone must be rooted!
If the software can't root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Fill values what you need to repair.
6. Press 'Repair' button.
7. Press 'Patch Certificate' if you have network problem after repairing.
7. Press 'Reset EFS' if you need to reset it.
Be carefully, do not perform this without necessity. Backup will be created automatically.

Repair DRK (Use it if you have DRK damaged (phone stuck on boot)):
1. Power on the phone in download mode (turn off phone, hold vol.down + Camera + Power).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Press 'Repair DRK' button.

Operation: Repair
Selected model: SM-G935F
Software version: 30.7

If you are looking for 'Repair Network' function then you should use 'Patch Certificate'

Waiting ADB device... OK
Reading phone info...
Model: SM-G935F
Android version: 7.0
Product code: SM-G935FZDAEVR
Phone version: G935FXXU2DRA9
PDA version: G935FXXS2DRAA
CSC version: G935FEVR1DQJ1
CSC country code: UK
CSC sales code: EVR
HW version: MP 0.801
Phone SN: RF8J10PCZRV
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2018-01-01
RF cal date: 20170107
IMEI: 35561**********
Checking Super user right... true
Reading NV data... OK
Checking NV data... 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 from phone... error (0)
Reading data... OK
Detecting MODEM... OK
Reading MODEM... OK
Calculating... 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 19)
Done with Samsung Tool PRO v.30.7