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-J120F
Software version: 27.1
Waiting ADB device... ok
Reading phone info...
Model: SM-J120F
Android version: 5.1.1
Product code: SM-J120FZKDSER
Phone version: J120FXXU1AOL5
PDA version: J120FXXU1AOL2
CSC version: J120FOXE1AOL1
CSC country code: Russia
CSC sales code: SER
HW version: MP 0.300
Phone SN: R58H50PD9GB
Chip name: EXYNOS3475
Modem board: SHANNON308
RF cal date: 20160505
IMEI:
Checking Super user right... true
Initialization zTool... ok
Running zTool, please wait...
Start... ok
Initialization... ok
Generate and check client proof... ok
Verify proof by client... ok
Reading data... ok
HWID: F5 BE BE F8 FD CA 5C 45 02 3B 66 12 2B DB F0 4A
Checking certificate file... ok
KEY ID: 0825
Reading NV data... ok
Checking NV data... ok
Calculating... ok
Crypting CERT 1... ok
Crypting CERT 2... ok
Writing NV data... ok
Rebooting phone... ok
Write CERT done
Done with Samsung Tool PRO v.27.1
pass
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