How To Root LG G3 on Lollipop and Install TWRP

Learn How To Root LG G3 On Android Lollipop and Install TWRP Custom Recovery with easy method and step by step instructions. LG G3 is currently one of the most popular device and successor of LG G2.  Thanks to XDA member topet2k12001 that now we have a rooting method that works on the stock Lollipop firmware.


Below are some warning statements that you must be knowing before preparing to Root or Install Custom Rom/Recovery in your Android Smartphone/Tablet:

  • Rooting/Installing Custom ROM/Recovery is not an authorized process hence you’ll be losing all your warranty benefits over your Android Smartphone  after Rooting/Installing it.
  • There are certain risks of damaging your Android Smartphone/Tablets while Rooting/Installing Custom ROM/Recovery in it. Hence, it is recommended that you proceed at your own risk and we are not to be held responsible even if your Smartphone gets damaged during or after completing the Rooting/Custom ROM/Recovery installation process.
  • You might not receive any future official software or firmware updates after rooting and installing Custom ROM/Recovery in your Android Smartphone.
  • It works on the following models of the LG G3:
    • D852G
    • D852 (Canadian)
    • D850 (AT&T)
    • D855 (International)
    • D857
    • D858HK (Dual SIM) – get Bump’d TWRP here

Before You Begin:

  • Disable OTA update on your LG G3: Tutorial
  • Extract the firmware file as described in this guide.
  • Backup the LG G3 EFS partition. Follow these instructions.
  • Copy the following files to the external SD card:
    • Android Lollipop system.img, boot.img, and modem.img
    • Sharpening Mod script
    • Bump’d TWRP
    • Tools for flashing the extracted .img files
  • Create a folder named “flash2″ on the internal storage on your device and copy the following files in this folder.
    • system.img
    • boot.img
    • modem.img
  • Now copy these file on the internal storage:
    •,, and
    • Bump’d TWRP
    • Sharpening Mod script

How To Root And Install TWRP:

  1. Turn off your LG G3 and boot it into TWRP Recovery. Since you got the Bump’d TWRP image copied on the device, it will boot into TWRP.
    1. Hold the Volume Down + Power buttons untill you the LG logo.
    2. Then release both the buttons for a second and then press the Volume Down + Power buttons again.
    3. You’ll see the Factory Reset screen.lg-g3-entering-recovery-mode
    4. Select Yes and your G3 will boot into TRWP mode.
  2. Now tap Install button in TWRP, navigate to and install it.
  3. Now flash Repeat for and Flash2Modem too.
  4. Also flash the Sharpening Mod script and select your desired sharpening level. Go through the wizard and your boot.img will be Bump’d.
  5. When you see Finished message, select Next.oversharpening-editor-lg-g3
  6. You’ll be prompted to reboot your phone. Exit the script without rebooting the device.
  7. Now go back to TWRP main menu and tap Reboot> System.
  8. TWRP screen will say that “SuperSU is not installed” and you’ll be prompted to install it.
  9. Swipe the slider on the bottom of the screen to install SuperSU.

SuperSU will be installed to your phone. The whole procedure has been shown in the following video:

source: xda

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