Viper4Android-Complete guide for Oreo and below versions

Viper4Android – Viper audio is a one of the best sound equalizer, audio enhancer used by mainstream music DJ’s on their mobile phone. It’s one of the best audio mod created by XDA member Zhuang. Viper 4 Android was designed to work on the kernel level rather than just manipulating the sound frequency by software modifications. This is the reason it works only on rooted devices.

Our team has compiled a great guide to install and enjoy the great power of Viper 4 android. The developer has made this mod in order to get better audio output quality from your smartphone speaker by tweaking the physical hardware from the kernel level and tweak sound drivers.

Dolby Atmos Vs Viper4Android

Dolby Atmos technologies are one of the best technology when it comes to optimizing your sound output on any device but sadly we cannot install Dolby Atmos on lower versions of Android. It supports devices above 4.3 +

Viper4Android, on the other hand, has a support for lower variant android from 2.3 above.It works flawlessly for Oreo 8.0 and 8.1 with the latest update check out installation instructions below. It works just like Dolby Atmos with more enriched features.

Let’s look at the features of Viper4Android and what it can offer when it comes to enhancing your device audio.

Viper4Android Features


Headset Phone

App Information

VersionFX version (active) / XHiFi version (discontinued)
Codename(FX version) Beautiful / (XHiFi version) X-Factor
Operating SystemsAndroid 2.3 / 4.0 / 4.1 / 4.2 / 4.3 / 4.4 / 5.0 / 6.0 / 7.0/8.0
CPU platformsARM (ARM CortexA8 or higher), x86(Atom/i3/i5/i7)
LanguageEnglish (US) / Simplified Chinese / Traditional Chinese / more
UpdatedSeptember 1,2016 / September 4,2013 – Official Release


ViPER4Android FX APK

Viper4Android Fx is the main control panel of the app oferring you all the options that we mentioned in the above features section.

How to install Viper4Android APK on Android Oreo

This guide will help you to install viper4 android up to Oreo version of Android. Before proceeding let’s check out the pre-requisites for installation.


  1. Rooted Device
  2. Busy box app must be installed on your device. Follow below guide
  3. Viper4android fx –2.3x
  4. Viper4android fx 4.0x or above
  5. Custom recoveries like TWRP or CWM enabled

Installation instructions

  1. Install Busy Box – Download and Install BusyBox on your rooted Android Device from play store link
  2. Verify your Busy box installation via BusyBox Checker
  3. Install SELinux Switch it lets you change the SELinux mod without modifying the boot script files from this link. During installation, if you get an error click on the arrow button of error and press “Unsafe
  4. Open Selinux app and Press “Premissive” Button. Grant Any permission if asked
  5. Go to our download section and download for Viper4android which is suitable for your android version. Note that the APK files are in zip folders so use any file manager to extract.
  6. After successful extraction open “x-A7.x.apk” and install it as a regular installation of any android app.
  7. Post Installation goes to the Viper4Android app and if it requires any permission. Grant them
  8. If you encounter any pop saying to install V4A drivers for your device press “YES”. Make sure you have a good internet connection for it to download. “Grant Permissions” if asked for.
  9. Reboot your device. After successful reboot got your Viper4Android app and Toggle the left menu and check for driver status.
  10. It should say “Driver version: 2.5.04” “Neon: Enabled”.
  11. Play any song from your favorite music player and come back to the app, Enable “Master Power
  12. If you are a nougat user and facing any issues while installation or post installation. Try to install the second file in the zip file provided in the download section i.e “x_Nougat_IO_test_fix.apk
  13. Enjoy your music with great customization.

When we speak about tweaking sound drivers we should also keep in mind that you can ruin your device easily if you don’t follow the instructions.

I hope you enjoyed this article and please feel free to share your problems in the comment section below.


Q)Why some settings are missing?
A: Because you didn’t read update log.
Q)Why cannot switch driver mode? (battery saving or high quality)
A: Only CPU with NEON have choices. To change, uninstall and reinstall.
Q)Why no effect?
A: See Troubleshoot.
Q) Which to install? FX or XHiFi or Both?
A: The difference is explained in V4A main page. Install FX first. XHiFi is optional.
Q)Where is the build.prop lines in instructions?
A: This step is optional. Those lines are not on every device. You can skip this.
Q) Can I still install V4A if I already using other sound mods?
A: Yes, after installation, open V4A app and switch to Compatible Mode.
Q) Why installation fail?
A: Root or SU binary issues. Use latest SuperSU.
Q)Why is superuser not supported?
A: V4A does support superuser. Some superuser version has bugs, please use a stable version of it.

Download Links

v2.5.0.5 (Android 4.0~7.0,8.0,8.1)
v2.4.0.1 (Android 4.0~6.0):
v2.3.4.0 (Android 2.3~5.0):

Officail Links

Developer site :

XDA Thread :

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