g920p imei error

[medie]

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 or
press 'Write CERT' to restore certificates.

To backup/restore QCN, phone diagnostic port must be enabled.
1. Power on the phone.
2. Type *#0808# and select 'DM+MODEM+ADB'.
3. Type *#9090# and select 'DM/DUN over HSIC'.
Or use 'Activate Diag' function from 'Repair' tab.
4. Connect phone to PC with USB cable, install drivers if needed.
5. Select diagnostic port in port settings.
6. Press 'Read QCN' button to read NV backup or 'Write QCN' to restore.

Operation: Write CERT
Selected model: SM-G920P
Selected port: COM119 SAMSUNG Mobile USB Serial Port
Software version: 26.6

Checking certificate file... OK
KEY ID: 0053
Waiting ADB device... OK
Reading phone info...
Model: SM-G920P
Android version: 5.1.1
Product code: Not Active
Phone version: G920PVPU3BOJ7
PDA version: G920PVPU3BOJ7
CSC version: G920PSPT3BOJ7
CSC country code: USA
CSC sales code: SPR
HW version: G920P.00
Phone S/N: 00000000000
Modem board: MDM9635M
RF cal date: NONE
IMEI:
Initialization AT RIL... OK
Bypass SPC... OK
Checking for compatible phone and cert... OK
Phone KEY ID: 0053
Writing CERT... error (0)

Done with Samsung Tool PRO v.26.6

[CloseCOder]

This error mostly happens because the Knox security of the device has been tripped. You have to flash a combination file in order to write cert onto the phone.