j730f Security patch: 2018-09-01

hi no repair latest frimware.i have combination file but no downgrade.i try 5 rom but no downgrade. how can repair lastes securty?

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.

Operation: Repair
Selected model: SM-J730F
Software version: 33.2

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

Waiting ADB device... OK
Reading phone info...
Model: SM-J730F
Android version: 7.0
PDA version: J730FXWS3ARI7
CSC version: J730FOJV3ARI1
Phone version: J730FXXU3ARI2
Product code: SM-J730FZDDMID
CSC country code: Iraq
CSC sales code: MID
Phone SN: R28J635ZG3W
IMEI: xxxxxxxxxx
HW version: MP 0.400
RF cal date: 20170626
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2018-09-01
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
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 13.3)
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)
Try downgrade modem if possible