  Direct Unlock:
1. Power on the phone.
2. Type ##3424# and select "DM + MDM + ADB".
3. Select "Qualcomm USB Settings" and choose "DM/DUN over HSIC".
4. Connect phone to PC with USB cable, install drivers if needed.
5. Choose diagnostic port in port settings.
6. Press "Unlock" button.
  
  Domestic Unlock:
1. Power on the phone.
2. Enable "USB debugging" in "Settings"-"Developer options",
   tap 7 times on "Build number" in "Settings"-"About phone" to enable "Developer options".
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press "Unlock Domestic" button.