Install Viper4Android Custom ROM On LG V20

Viper4Android team build the latest custom ROM for LG V20. Viper4Android is a revolutionary audio equalizer for Android. Also, it is called the mother of all sound MODs available for Android devices. If you want to make a great sound experience on LG V20 or you can make things better on your LG V20, then you are at the right place. Here, we have shared the Viper4Android custom ROM for your device. Once your device is updated, then you can power up the performance, considering in tweaking and ensure a better Android experience on your LG V20.

This latest custom ROM brings lots of new features, applications and capabilities to make everything run better and faster than before. This ROM is not officially announced by LG but just a custom ROM which is developed by third-party developers. Your device must be rooted and installed with the latest version of a custom recovery like TWRP or CWM (ClockworkMod) to flash this Viper4Android custom ROM on LG V20 variants.

By following this step by step guide, you can easily update your LG V20 to the Viper4Android custom firmware. Official firmware is suitable, but with a custom ROM, you can easily customize, optimize and personalize your LG V20 that cannot be found on the default Android OS. Before proceeding, don’t forget to take a full backup of all your valuable data. Because while installing Viper4Android custom ROM, your entire data will be wiped clean. If you are interested in updating your own LG V20 to Viper4Android custom ROM, then go ahead and follow the given steps.

Install Viper4Android Custom ROM On LG V20


This guide containing the Viper4Android ROM and instructions are working with LG V20 only. Do not try to install this beta firmware on any other device or incorrect variant. Check the model number of your device first.

Warning: will not be responsible for any damage occurred to your LG V20 during or after the installation of the Viper4Android custom build. Proceed at your risk.

Before Getting Started:

  • Create a proper backup of all your relevant data and settings before proceeding to the installation guide using a recommended custom recovery like TWRP or CWM.
  • Download and install LG V20 USB Drivers on the PC.
  • Enable USB Debugging on the LG V20 on the PC by navigating to Settings > Developer Options >check USB Debugging option.
  • The LG V20 should be rooted with the latest version of custom recovery installed.
  • The bootloader of your LG V20 should be unlocked.
  • Check the battery level of your device; it should be charged at least about 80% to prevent unexpected shutdowns while installing the Viper4Android firmware.

Required Files:

How to Update LG V20 via Viper4Android Custom ROM:

Step No 1: – First, download the  Viper4Android build and Google Apps on the desktop of your PC.

Step No 2: – Connect your LG V20 to the PC via its USB data cable.

Step No 3: – Transfer the downloaded firmware and Gapps .zip files to the root folder of the SD card of your phone.

Step No 4: – Disconnect the G3 from the PC and turn it OFF to boot into Recovery Mode.

Step No 5: – Turn ON the LG V20 while pressing and holding Volume Down + Power keys at the same time for a while until the LG logo appears, then release the buttons then press them again. Again press Power key three times to boot into recovery mode.

Step No 6: – While your device is now in TWRP recovery, create a Nandroid backup.

  • Select Backup
  • Do a swipe on the Swipe to Back Up option.

Step No 7: – Next, perform a full wipe including Dalvik Cache, Cache, System and Factory Data Reset.

Step No 8: – Once done, go back to the main menu of Recovery and select Install.

Step No 9: – Navigate to the Viper4Android ROM .zip file that you’ve already transferred to the root folder of the SD card. Select it and swipe the Swipe to Confirm Flash option to begin the installation process.

Step No 10: – Go back to the main recovery menu and select Reboot > System after the installation is completed.

Step No 11: – Now, install Google Apps on your LG V20 by repeating the above steps.

Step No 12: – Reboot the LG V20.

LG V20 may take about 4 to 5 minutes while booting up for the first time after installation. So please be patient.

That’s All! You’ve successfully installed  Viper4Android custom ROM on your LG V20.

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