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If it fails to connect, make sure you entered the correct COM port.

Its time to run some more commands, copy paste the command below in CMD window. Keep your device in ‘Download mode’ and do not detach USB cable yet. Its not necessary that your COM port must be similar to shown in the image above, it usually varies.ĩ. You can exit this CMD prompt window if you want to after noting down the COM port. To do that, double click the ports.bat file in your LG G4 Root folder. Lets find on which port your phone is connected to the PC. Let it install drivers and do not disconnect the USB cable meanwhile.Ĩ. The phone will turn itself on and drivers will install. While its powered off, hold down ‘Volume Up’ key and insert your USB cable which is connected to the PC. Time to reboot your phone into Download mode. (Copy+paste commands recommended).Īdb.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/tmpħ. Make sure the device is connected to the PC. Now you should see a command prompt window opened. Open a command prompt in the folder by pressing Shift+Right Click of your mouse in an empty area in the folder and you should see ‘Open command window here’, See image below.ĥ. Now extract LG G4 Root.zip which you should’ve downloaded previously on your PC. Open Developer options and enable ‘USB debugging’.Ĥ. (Go to Settings > About Phone > Software Information and tap build number until you are presented with “You are now a developer”).ģ. Do copy the system img file into root directory of your internal SD card.Ģ. Do not rename the file as the exact commands will be used to flash the file. Download your system image files from the link above, extract it on your PC and copy the file inside your Internal SD card of your phone. Further Steps to Root your LG G4 Deviceġ. (Credits to reddit user jamesrascal for this folder). If you want to root other versions of LG G4, you can find your respective files here. (You can download from this folder here). If you want to know how to downgrade your phone from Marshmallow 6.0 to 5.1, please follow this step by step guide on how to downgrade LG G4 H810 to Stock ROM LL 5.1.