Samsung S6 G920f 3500000000006 error

[AonMobilles]

PLZ HELP ME
BACKUP 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. Press 'Read EFS' button to read backup or 'Write EFS' to restore.
6. Press 'Read CERT' button to read certificates or 'Write CERT' to restore.
7. Press 'Write NV DATA' if you need to restore NV backup.

Operation: Write CERT
Selected model: SM-G920F
Software version: 26.6

Waiting ADB device... OK
Reading phone info...
Model: SM-G920F
Android version: 6.0.1
Product code:
Phone version: G920FXXS4DPG3
PDA version: G920FXXS4DPH8
CSC version: G920FOJV3DPC1
CSC country code: UAE
CSC sales code: XSG
HW version:
Phone S/N: 00000000000
Modem board: SHANNON333
RF cal date:
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... error (9)

Done with Samsung Tool PRO v.26.6