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.
Read certificate via diagnostic port:
1. Power on the phone.
2. Type *#0808# and select 'DM+MODEM+ADB'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Press 'Read CERT DIAG' button to read certificates.
Operation: Write CERT
Selected model: SM-G920T
Software version: 30.8
Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SM-G920T
Android version: 7.0
Product code: SM-G920TZKATMB
Phone version: G920TUVU5FQG3
PDA version: G920TUVU5FQG3
CSC version: G920TTMB5FQG3
CSC country code: USA
CSC sales code: TMB
HW version: REV1.0
Phone SN: R58G41XTSGW
Chip name: EXYNOS7420
Modem board: SHANNON333
Security patch: 2017-07-01
RF cal date: 20150426
IMEI: 357162876392745
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Initialization zTool... OK
Running zTool, please wait... OK
HWID: 08 2F 2E F6 77 04 00 00 00 00 00 00 00 00 00 00
Calculating... OK
Initialization AT RIL...
AT RIL stopped, restarting... OK
Checking for compatible phone and cert
Phone KEY ID: 0346
Checking certificate file... OK
KEY ID: 0346
Crypting CERT 1... OK
Writing NV data... OK
Rebooting phone... OK
Write CERT done
Done with Samsung Tool PRO v.30.8
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.
Read certificate via diagnostic port:
1. Power on the phone.
2. Type *#0808# and select 'DM+MODEM+ADB'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Press 'Read CERT DIAG' button to read certificates.
Operation: Write CERT
Selected model: SM-G920T
Software version: 30.8
Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SM-G920T
Android version: 7.0
Product code: SM-G920TZKATMB
Phone version: G920TUVU5FQG3
PDA version: G920TUVU5FQG3
CSC version: G920TTMB5FQG3
CSC country code: USA
CSC sales code: TMB
HW version: REV1.0
Phone SN: R58G41XTSGW
Chip name: EXYNOS7420
Modem board: SHANNON333
Security patch: 2017-07-01
RF cal date: 20150426
IMEI: 357162876392745
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Initialization zTool... OK
Running zTool, please wait... OK
HWID: 08 2F 2E F6 77 04 00 00 00 00 00 00 00 00 00 00
Calculating... OK
Initialization AT RIL...
AT RIL stopped, restarting... OK
Checking for compatible phone and cert
Phone KEY ID: 0346
Checking certificate file... OK
KEY ID: 0346
Crypting CERT 1... OK
Writing NV data... OK
Rebooting phone... OK
Write CERT done
Done with Samsung Tool PRO v.30.8