g925f patc cert fail error (7.7.8)

[batur4]

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.

Operation: Patch Certificate
Selected model: SM-G925F
Software version: 27.5

Waiting ADB device... Ok
Reading phone info...
Model: SM-G925F
Android version: 6.0.1
Product code: SM-G925FZWADBT
Phone version: G925FXXU4BPF1
PDA version: G925FXXS4DPJ5
CSC version: G925FDBT4DPIU
CSC country code: Germany
CSC sales code: DBT
HW version: MP 0.600
Phone SN: R58G60DGQZD
Modem board: SHANNON333
RF cal date: 20150606
IMEI:
Checking Super user right... true
Initialization zTool... Ok
Running zTool, please wait... error (7.7.8)
Current version can not be patched

Done with Samsung Tool PRO v.27.5