Samsung G920i Checking NV data... error Security damaged (1) Need Help

[ansari mobile]

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 'Write CERT' to restore certificates.
7. Press 'Write NV DATA' if you need to restore NV backup.

Read certificate operation:
1. Power on the phone.
2. Connect the phone to PC with USB cable.
3. Check Samsung modem in device manager, install drivers if needed.
4. Press 'Read CERT' button to read certificates.

Operation: Write CERT
Selected model: SM-G920I
Software version: 27.7

Waiting ADB device... Ok
Reading phone info...
Model: SM-G920I
Android version: 5.1.1
Product code:
Phone version: G920IDVU3DOJ6
PDA version: G920IDVU3DOJ6
CSC version: G920IKSA3DOJ1
CSC country code: KSA
CSC sales code: KSA
HW version:
Phone SN: 00000000000
Chip name: EXYNOS7420
Modem board: SHANNON333
RF cal date:
IMEI:
Checking Super user right... true
Reading NV data... Ok
Checking NV data... error
Security damaged (1)

Done with Samsung Tool PRO v.27.7

[oggi21]

Write nv data. If you make efs reset then samsung tool make backup of it

[diego1979]

use samsungtool 24.8 bro repair imei