SM-G920T Repair probilem

Reset EFS:
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 ‘Reset EFS’ if you need to reset it.
Be carefully, do not perform this without necessity. Backup will be created automatically.
6. If you have yellow table on your device screen, then press ‘Disable Factory Mode’ button.

Operation: Repair
Selected model: SM-G920T
Software version: 24.2

If you are looking for ‘Repair Network’ function then you should use ‘Patch Certificate’

Waiting ADB device… OK
Reading phone info…
Model: SM-G920T
Android version: 5.1.1
Product code:
Phone version: G920TUVS3DOJC
PDA version: G920TUVS3DOJC
CSC version: G920TTMB3DOJC
CSC country code: USA
CSC sales code: TMB
HW version:
Phone S/N: 00000000000
Modem board: SHANNON333
RF cal date:
Checking Super user right… true
Initialization AT RIL… error
Done with Samsung Tool PRO v.24.2