   Activate Diagnostic Port:
1. Tap 7 times on "Build number" in "Settings"-"About phone" to enable "Developer options",
   go to "Settings"-"Developer options" and enable "USB debugging".
2. Select device in ADB settings.
3. Press "Activate Diag" button.  

  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. To use "Auto backup/restore QCN" function (recommended):
   Type *#0808# and select "DM+MODEM+ADB".
   Type *#9090# and select "DM/DUN over HSIC".
   Or use "Activate Diag" function.
   Or you can disable this function and use ADB only.
4. Connect the phone to PC with USB cable, install drivers if needed.
5. Choose diagnostic port in port settings if "Auto backup/restore QCN" is not skipped.
6. Select device in ADB settings.
7. Fill values what you need to repair.
8. Press "Repair" button.

  "Wipe EFS/NVM":
1. Power on phone in download mode (turn off phone, hold Volume Down + Home + Power).
2. Connect USB cable, install drivers if needed.
3. Press "Wipe EFS/NVM" button to deactivate security.
4. Wait till phone reboot.