What is Viper for Android (v4)?V4A already made great improvements in Bass, with dynamic bass system; Surround, with field surround and VHS+; Auditory Healing, with Cure Tech+ and, Simulation, with Convolver. The parts left are vocal/clarity/treble and EQ.
Download Links
FX version v2.2.1.1 : Meadia Fire Link
XHiFi version v2.2.1.1 : Download Link
Now lets Get started with the installation process.Step 1: Download from the provided Dev-Host or Media Fire links, Now you should have files in your download folder as ViPER4Android_FX_2210_en & ViPER4Android_XHiFi_2102_en.
Step 2: You must have Winrar or Winzip to Extract these 2 files.
Step 3: Once Extracted you will now have totally 4 zipped files.
Now here is where the confusion starts on which file needs to be extracted and installed, so lets have these 4 zipped files in a separate folder:
ViPER4Android_FX_2210_Android4.x_en
This File indicates it is for Android 4.x VersionViPER4Android_XHiFi_2102_Android4.x_en
This File indicates it is for Android 4.x VersionHere i am trying to install this on my Samsung Galaxy Note 2, so I will be deleting 2 zipped files which are for
2.3 Versions.
Now i have only 2 zipped files and which are
ViPER4Android_FX_2210_Android4.x_en &
ViPER4Android_XHiFi_2102_Android4.x_enNow lets extract them using any extraction tool like winrar or winzip, Once extracted now you will see these files as listed in below screenshot,
Now here we have two files,
ViPER4Android_FX.apk and
ViPER4Android_XHiFi.apk, remaining are the the Guides and Detailed information about the applications.
Now lets focus on these to apk and move them on to Sd Card or Phone Memory, Please make sure before you install this application we have installed
busy box from Google play store install it launch it again you need to do a normal install as shown in the below screenshot.
Now lets go ahead and install these to
ViPER4Android_FX.apk and
ViPER4Android_XHiFi.apk files on your device once installation completes now launch the app Viper4AndroifdFX and once you launch it will ask for it may ask for SuperSu access grant access.
Once Access granted now it will take you to this screen as shown in the below screenshot Please click
YES
This is stage where you need to be careful, it will ask you to select you processor to install the driver if you are not aware which driver your device has you could check on Wikipedia or any other specification site, Here i am going to take help from Wikipedia as i believe that is very accurate as shown in the below snapshot,
Here as shown in the snapshot its highlighted in Blue
1.6 GHz quad-core Cortex-A9, So this confirms my processor, So i go ahead and select
CortexA9/15 With Neon
Now once you click on this option it will take you to the below screen,
Please click on
OK and don’t reboot the device, Lets go back to App drawer and launch
Viper4Android XHIFI and Please
Grant Superuser Access,
Now it will prompt with this for driver installation click on
Yes 
Here again it will ask you to select the processor for driver installation, we need to select it as Cortex AX with Neon as shown in the below snapshot,
and then click on
OK
So here this completes the installation process.
Now finally we reboot the device. After reboot, a new folder is created automatically and that is
Viper4Android in your Phone memory
If you have any queries please comment below, i will reply back asap.
