Checking NV data... error Security damaged (1 )SM-G920I Imei 350000000000006 Repair Done

Checking NV data... error
Security damaged (1)

 

 have same problem but when i tried to write i get this error:



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: 25.5

Waiting ADB device... OK
Reading phone info...
Model: SM-G920F
Android version: 5.0.2
Product code:
Phone version: G920FXXU1AOCW
PDA version: G920FXXU1AOCZ
CSC version: G920FVFG1AOC4
CSC country code: UK
CSC sales code: VOD
HW version:
Phone S/N: RF8G41DNS6W
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... OK
Checking certificate file... OK
KEY ID: 0346
Reading nv data... OK
Checking NV data... error
Security damaged (1)

Done with Samsung Tool PRO v.25.5

 

 Waiting ADB device... OK
Reading phone info...
Model: SM-G920I
Android version: 5.0.2
Product code:
Phone version: G920IDVU1AOC5
PDA version: G920IDVU1AOC4
CSC version: G920IXSA1AOC4
CSC country code: Australia
CSC sales code: XSA
HW version:
Phone S/N:
Modem board: SHANNON333
RF cal date:
IMEI:
Checking Super user right... true
Initialization AT RIL... OK
Checking certificate file... OK
KEY ID: 0346
Initializating zTool... OK
Running zTool, please wait... OK
Reading nv data... OK
Checking NV data... OK
Calculating... OK
Writing nv data... OK
Rebooting phone... OK
Write CERT done

Done with Samsung Tool PRO v.23.3

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