This root method works on any LG G4 phone running Marshmallow.

Warning: Rooting voids device’s warranty, users should proceed at their own risk.
This root will not erase internal storage on device, but for safety reasons it’s still strongly recommended to back up all data before getting started.

Prerequisites:
• The device should have at least 60% charge left on the battery.
• If you are using LG PC Suite program on PC it should be completely turned off to not disturb all the process.
• USB drivers must be installed on PC (if LG PC Suite software are in PC then drivers are already installed).
• USB Debugging and OEM unlock must be enabled on the device. To enable it go to Settings/About phone/Software information and keep taping on Build number until you see Developer mode has been turned on. After that go to Settings/Developer Options and check both, USB Debugging and OEM unlock.

Tutorial:

  1. Connect LG G4 to the PC via USB cable.
  2. Download LG Root.zip to PC and extract it.
  3. Go to LG Root folder and open cmd window: holding shift key, right click on empty space in folder and choose Open command window here. LG G4 Root1
  4. Let’s make sure our device is connected properly. On cmd window type adb.exe devices then press enter. We should get List of devices attached. LG G4 Root2
  5. Now we need to push SuperSU update into device by executing this command on cmd:
    adb.exe push busybox /data/local/tmp/ && adb.exe push lg_root.sh /data/local/tmp && adb.exe push UPDATE-SuperSU-v2.46.zip /data/local/tmp


    LG G4 Root3

  6. Disconnect LG from USB and turn it off.
  7. Keep holding Volume Up button and again plug in a USB cable connected to the PC.
  8. Update screen will show up. LG G4 Root4
  9. Using PC launch ports.bat file which was extracted in step 2. This will give the COM port in which LG device is connected. Look for the Diag port. In our example we have port COM4 LG G4 Root5
  10. Close ports window and in cmd type:
    Send_Command.exe \\.\COM4


    LG G4 Root6

  11. Run the root script by typing:
    sh /data/local/tmp/lg_root.sh dummy 1 /data/local/tmp/UPDATE-SuperSU-v2.46.zip /data/local/tmp/busybox


    LG G4 Root7

  12. Type fastboot reboot to reboot LG.

That’s it! Congratulations for successfully rooting LG G4!

6 comments

  • Josh

    February 7, 2018 at 4:32 pm

    Last step failed as well. I receive # only

    Reply

    • Admin

      February 8, 2018 at 9:44 am

      You mean, you can’t reboot device using fastboot reboot in cmd?? Cause that’s the last step.

      Reply

  • Alexandru

    June 12, 2017 at 11:13 am

    Hello. I just try to root my lg g4 815 int. evrething was fine until the last step.
    Give me FAIL. This is the massage in CMD. Does anyone know why? Thx in advance.

    Reply

    • Admin

      June 16, 2017 at 5:21 pm

      Hello Alexandru,

      In which current step did you get that error?

      Reply

  • Jawaad

    April 8, 2017 at 9:57 pm

    After typing in step 11 it said FAIL. WHAT DO I DO PLEASE HELP

    Reply

    • Admin

      April 17, 2017 at 11:26 pm

      There should be more explanation about the error you get.

      Reply

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