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Problem installing viper4android.

Hi guys,
I am using the optimized stock rom located here. aaaaawawawaa using BitO-KU kernel. The sound is very low on my Nvidia Shield k1. I have done the tweaks located here. In the thread it says that viper4android makes a big difference as well. When I try to install viper4android I keep getting an I/O error when trying to install the driver. I downloaded SELinux changer but when I launch it I am getting an error in it as well. It says the app was unable to gain root access. I checked in supersu and SELinuxModeChanger does have root access. So I don't understand why it will not work either. In terminal emmulator it says that permissive mode is enabled. Can someone please let me know what I'm doing wrong? I would really like to get viper4android working.
Thank you,
Rocky

1. It isn't good rom, I've had it only two days. Stock kernel is better too.
2. I'm on stock 5.2(K1), rooted with Magisk 14, installed M modules:
V4A 2.0 by ahrion, busybox by osm0sis. V4A works good but I don't need it for speakers. @grimreaper1014
Do you have properly installed busybox?

Just flash Viper4Android using Magisk 14 (its located under downloads tab) and disable AudioFX if you even have that on stock ROM. Then it should work but note that if you get processing error just create a folder named "MagiskManager" and it should work then.

Ok thanks guys. Right now I have SuperSu flashed via recovery. Do I have to remove that somehow to install magisk?

fpozar said:
Just flash Viper4Android using Magisk 14 (its located under downloads tab) and disable AudioFX if you even have that on stock ROM. Then it should work but note that if you get processing error just create a folder named "MagiskManager" and it should work then.
Click to expand...
Click to collapse
I'm doing a clean install. I'm going back to LinageOS. Where do I create the MagiskManager folder at if I need it? Thanks again for your help fellas. I appreciate it greatly.

@grimreaper1014 create the folder in /storage/emulated/0/ in case it doesn't want to install the module. If it goes without any problems then congrats you have working Viper4Android !
(Make sure you disable AudiFX app in lineageOS before you do any flashing)

grimreaper1014 said:
Right now I have SuperSu flashed via recovery. Do I have to remove that somehow to install magisk?
Click to expand...
Click to collapse
If for some reason you (or others) choose this route, you can remove SuperSU (mandatory in order to install Magisk) using the built-in function in the SuperSU app.
---------- Post added at 02:32 PM ---------- Previous post was at 02:25 PM ----------
dzidexx said:
2. I'm on stock 5.2(K1), rooted with Magisk 14, installed M modules:
V4A 2.0 by ahrion, busybox by osm0sis. V4A works good but I don't need it for speakers.
Click to expand...
Click to collapse
Similar setup: stock 5.2 ROM, with Magisk 14, and simply installed the V4A (version 2.0) module by ahrion. I think the module installed busybox (by osm0sis) automatically, as I don't recall doing it myself. But I maybe I'm not remembering that properly.
V4A working great, no messing with SELinux.

Helpe me,Flash viper4android

How to flash viper4android with magisk on android oreo.
I have failed to install driver viper4android on android oreo.

newyesor said:
How to flash viper4android with magisk on android oreo.
I have failed to install driver viper4android on android oreo.
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Click to collapse
I believe you need a custom or modified kernel with SEL Permissive. Otherwise, even if it installs and runs, I don't think that it will work.

AarSyl said:
I believe you need a custom or modified kernel with SEL Permissive. Otherwise, even if it installs and runs, I don't think that it will work.
Click to expand...
Click to collapse
Can confirm, somewhat. I spent a while getting it running myself, the latest zip from @ahrion works, but for our case some things need to be moved.
For anyone interested in some behind the scenes audio changes; for the O update, our HTC audio effects file and all soundfx folders were moved from system/etc and system/lib to vendor/etc and vendor/lib. This is causing a bit of confusion with some things. When I flashed his zip, I had to move the system/lib/soundfx folder in his module to vendor/lib, go into the htc audio effects file and point the V4A library to vendor instead of system, then create a symlink for vendor as is usually done. I still have to go into developer mode and disable selinux for it to process, though.

https://forum.xda-developers.com/u11/development/kernel-cleanslate-v1-0-t3623310 this kernel does wonders for viper4Android and also make sure your using the latest beta magisk...
Ohhhhhh....you said Oreo, my bad

FiX SAMSUNG MUSIC IN OREO

1. Need A TWRP Recovry.
2.You Need To Have Magisk Root too.
3.Download This Magisk Permissive Module HERE https://forum.xda-developers.com/attachment.php?attachmentid=4381857&d=1515282613
INSTALLATION :-
OPEN MAGISK AND ADD MODULE IN MODULES SECTION THEN INSTALL IT.
NOW YOUR MUSIC PLAYER WORKING WELL
:-NOTE :- THIS IS TESTED ON OREO ROM BY ProtoDeVNan0 MAYBE ITS WORKING ON OTHERS TOO.

Thanks for this, works perfectly :good:

please share picture . Thank bro :'>

harsh_jagirdar said:
1. Need A TWRP Recovry.
2.You Need To Have Magisk Root too.
3.Download This Magisk Permissive Module HERE https://forum.xda-developers.com/attachment.php?attachmentid=4381857&d=1515282613
INSTALLATION :-
OPEN MAGISK AND ADD MODULE IN MODULES SECTION THEN INSTALL IT.
NOW YOUR MUSIC PLAYER WORKING WELL
:-NOTE :- THIS IS TESTED ON OREO ROM BY ProtoDeVNan0 MAYBE ITS WORKING ON OTHERS TOO.
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Click to collapse
is there anyway to flash this in flashfire without magisk.....

comptonhubbard said:
is there anyway to flash this in flashfire without magisk.....
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Click to collapse
noo you need to have magisk root

Viper4Android driver installation fails everytime.

Any GP 2 owner got error "Installation failed because of an I/O error. Try rebooting" after freshly installing (from magisk/twrp)?
Driver Version = 0.0.0.0
Enabled: No
Status: Abnormal
Audrio Format: Unsupported
Magisk Modules installed:
Busybox for Android NDK
Audio Modification librabry
universal deep_buffer removar
SeLinux mode changed to permissive.
No matter how many times I install/reboot this/phone, I always get this error.
OS = 8.1 w/ March Sec Update
Logcat
03-20 20:17:31.572 3573 3573 I ViPER4Android: System booted.
03-20 20:17:31.573 3573 3573 E ViPER4Android_Utils: [Fatal] Can't load libV4AJniUtils.so
03-20 20:17:31.573 3573 3573 I ViPER4Android: Jni library status = false
03-20 20:17:31.573 3573 3573 I ViPER4Android: Driver not configured correctly.
Click to expand...
Click to collapse

Get the one from zack it works flawlessly
Sent from my Pixel 2 using Tapatalk

I use the one from magisk actually works its the fx materialized one by ahrion and zack

Delta wolf said:
I use the one from magisk actually works its the fx materialized one by ahrion and zack
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Click to collapse
I've tried to install this several times and the driver never gets enabled. It asks to reboot in order to install the driver every time I open the app after rebooting the phone. Did you do anything special? What's the secret?

westhaking said:
I've tried to install this several times and the driver never gets enabled. It asks to reboot in order to install the driver every time I open the app after rebooting the phone. Did you do anything special? What's the secret?
Click to expand...
Click to collapse
You have to choose viper4android fx.

Thank you all for your replies. Zack helped me figure out the issue. I had installed Audio-Modification-Library module which was preventing A4A installation. Cheers!

Burninh2o said:
Thank you all for your replies. Zack helped me figure out the issue. I had installed Audio-Modification-Library module which was preventing A4A installation. Cheers!
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Click to collapse
Because of this post, I decided to install the Audio Modification Library module to see what it does. Oddly enough, for me, V4A actually started working after enabling this additional module and setting my kernel to permissive. Weird. Glad it's working now though!

westhaking said:
Because of this post, I decided to install the Audio Modification Library module to see what it does. Oddly enough, for me, V4A actually started working after enabling this additional module and setting my kernel to permissive. Weird. Glad it's working now though!
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Click to collapse
lol... nice!

I just had the same issue as a result of upgrading stock MIUI Android 7.1 ROMS on a Xiaomi Mi Max 2.
I solved it by:
1. In Magisk, disabled both Audio Mod Library and Viper4Android --> REBOOTed.
2. In Magisk, ENABLED both Audio Mod Library and Viper4Android. --> REBOOTed.
No driver errors and it works in Speaker and Headphone.
But I'm not getting any Viper Notification in the Shade or the Status.

Burninh2o said:
Thank you all for your replies. Zack helped me figure out the issue. I had installed Audio-Modification-Library module which was preventing A4A installation. Cheers!
Click to expand...
Click to collapse
This fix works flawlessly on the H918 running the Alpha 3.0 rom

Catalyst2012 said:
I just had the same issue as a result of upgrading stock MIUI Android 7.1 ROMS on a Xiaomi Mi Max 2.
I solved it by:
1. In Magisk, disabled both Audio Mod Library and Viper4Android --> REBOOTed.
2. In Magisk, ENABLED both Audio Mod Library and Viper4Android. --> REBOOTed.
No driver errors and it works in Speaker and Headphone.
But I'm not getting any Viper Notification in the Shade or the Status.
Click to expand...
Click to collapse
Stock Kernel too? I cannot get it to install drivers to save my life

MikeyLee said:
Stock Kernel too? I cannot get it to install drivers to save my life
Click to expand...
Click to collapse
Did you try Disabling/Enabling the modules in Magisk? I had to do this a few times before it worked. Viper status will report 'Processing: No' until you start playing a music file, then it should change to 'Processing:Yes'.
I was able to get the notification to show up by selecting the first option in Settings>Show Notification.

I've tried just about everything I can think of.

Here's what I don't get. I have 3 devices currently. All running Oreo. Huawei Mate SE, Xiaomi Redmi Note 3 and Ulefone T1. The Redmi Note 3 and Ulefone T1 both have V4A working fine and both kernels are Enforcing. The Huawei no matter how it's set refuses to work.

Viper4androi in oxygenos 10?

Dies anyone had sucess installing viper4android in the new oxygenos?

TheDarkMadness said:
Dies anyone had sucess installing viper4android in the new oxygenos?
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Yes, V4A works on OOS10

Sai_Praneeth said:
Yes, V4A works on OOS10
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how did you Install IT, Therme are so many ways...

TheDarkMadness said:
how did you Install IT, Therme are so many ways...
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Click to collapse
I managed to install viper on op7 OOS10.0.1 with bluspark kernel with the following method:
1) uninstall every AML and ACP and viper stuff and reboot.
2) install ViPER4ANDROID 2.7.1.0 apk from xda labs and open the app but dont install driver. put the app in background
3) go to magisk>downloads and install AML module. it will ask to reboot. dont do it.
4) go back to viper and install driver. it will automatically reboot.
5) after reboot go to magisk manager and UNCHECK (NOT DELETE) AML and open viper and install driver again.
6) now your phone will boot with viper installed
Note: (if viper driver is installed but has no effect then go to viper and click on 3 dot menu then click on 'attach audio effects' once viper start working you can detach it). you can use App Systemizer on magisk repo to systemize viper app to priv-system app so that it doesnt get killed in background. you can also hide its always on notification. viper will always run in background. but i saw no battery drain difference. Enjoy

Worked for me in Stock Rom oos 10.0.1?

Or you can easily flash in magisk repo

Good alternative module repo magisk James DSP (DCC and irs files supported)

How are you guys rooted on oos 10?
I lost root when I updated and when I went to redo it I found that the process changed for Android 10.

What is you parameters on Viper ? For Compare.
Thanks

matdu57 said:
What is you parameters on Viper ? For Compare.
Thanks
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Click to collapse
I installed it the complicated way, thats written up there and it worked fine. I had to wait because i lost root in the oos 10 update, because i flashed magisk in the wrong way. And there was no twrp that worked for me, fastboot boot didnt worked at all, so i flashed magisk to the boot image and i got root again with viper4android and everything works fine.
'Version 2.5.0.4
NEON yes
activated No
Status normal
Audio format supported
verarbeitung (its german, idk whats taht in englisch sry) no
48000

No sorry i talking about setting for the sound.
Sorry for my bad english.
Viper is working on OOS 10

matdu57 said:
No sorry i talking about setting for the sound.
Sorry for my bad english.
Viper is working on OOS 10
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Oh ok, so here are my settings:
i enabled compressor on default settings
i got equalizzer on the last setting, so i can hear the voices better
and of course the optimization
for my holyhigh in ears and my xiaomi airdots i use:
spectrum extender on full settings
equalizer on the same setting
surround sound on lvl 1
dynamic system
viper bass on 43 hz and 15
and the second last setting on 3
whats your settings?

For the speaker i have the same but without compressor.
On ma headphone (Marshall) USB with DAC 3.5mm :
Playback gain : strong 2 et default setting for the other
Spetrum extender full
Equalizer on the same
Surround + Level 3
Viper bass 70hz on normal bass
Viper clarity Xhifi 3.5 dB
AnalogX level 2
For the bluetooth i don't have setting for my car and bluetooth bose soundlink. I'll share with you my setting on the next week