[GUIDE][Android 11][Viper4Android] Viper4Android on Android 11 with Selinux Enforcing - Xiaomi Poco X3 NFC Guides, News, & Discussion

First of all, I found this solution on Youtube. I spent hours finding a solution through forums because I like reading. I finally gave in and watched a Youtube tutorial. So this guide is for everyone who prefers reading like me.
1. Install Magisk 21.0. As of writing this is not the latest build (21.1). 21.1 does not seem to work with V4A on Android 11.
2. On Magisk Manager, install the module Audio Modification Library. Reboot.
3. On Magisk Manager, install Viper4Android. Reboot.
4. On Viper4Android, a prompt to install drivers will appear. Proceed and install. Device will automatically reboot.
5. On Viper4Android, go to settings and turn on Legacy mode. Driver status now should be Normal and audio format supported.
I am using Poco X3 NFC and Arrow OS. But the solution apparently works on other phones with Android 11.
Credits to munchy. Video can be found here:
.

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ViPER4Android 2.7.1.6
Install this archive and nothing else is needed in addition.
For android 10 / 11.

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MrMuffins5951 said:
First of all, I found this solution on Youtube. I spent hours finding a solution through forums because I like reading. I finally gave in and watched a Youtube tutorial. So this guide is for everyone who prefers reading like me.
1. Install Magisk 21.0. As of writing this is not the latest build (21.1). 21.1 does not seem to work with V4A on Android 11.
2. On Magisk Manager, install the module Audio Modification Library. Reboot.
3. On Magisk Manager, install Viper4Android. Reboot.
4. On Viper4Android, a prompt to install drivers will appear. Proceed and install. Device will automatically reboot.
5. On Viper4Android, go to settings and turn on Legacy mode. Driver status now should be Normal and audio format supported.
I am using Poco X3 NFC and Arrow OS. But the solution apparently works on other phones with Android 11.
Credits to munchy. Video can be found here:
.
Click to expand...
Click to collapse
thanks, will give it a try

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Can someone please help me how to download Viper4android, I have no idea anything about rooting your phone or magisk module, I don't how to install it, can someone please explain it to me step by step what to do

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noskojv said:
Install this archive and nothing else is needed in addition.
Click to expand...
Click to collapse
I'm on Xiaomi.eu v12.0.7.0. Flashed your ZIP with OFox recovery and got two V4A icons on Trebuchet's drawer.
Tried the first and got the driver error and a reboot after agreeing to have it installed; install failed for lack of root, obviously.
Tried the second icon, got the driver error, agreed, got a proper root prompt, agreed, phone auto-rebooted and everything worked, apparently.
As this is my first encounter of this double icon setup, I'm wondering if this is a feature of newer V4A Team De Witt versions?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

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pnin said:
I'm on Xiaomi.eu v12.0.7.0. Flashed your ZIP with OFox recovery and got two V4A icons on Trebuchet's drawer.
Tried the first and got the driver error and a reboot after agreeing to have it installed; install failed for lack of root, obviously.
Tried the second icon, got the driver error, agreed, got a proper root prompt, agreed, phone auto-rebooted and everything worked, apparently.
As this is my first encounter of this double icon setup, I'm wondering if this is a feature of newer V4A Team De Witt versions?
View attachment 5178653
Click to expand...
Click to collapse
It needs to be installed through magisk, not through recovery.

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noskojv said:
ViPER4Android 2.7.1.6
Install this archive and nothing else is needed in addition.
For android 10 / 11.
Click to expand...
Click to collapse
Thank you my friend

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noskojv said:
It needs to be installed through magisk, not through recovery.
Click to expand...
Click to collapse
Duh! I see.
Will it be easy to revert?

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pnin said:
Will it be easy to revert?
Click to expand...
Click to collapse
Yes

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noskojv said:
Yes
Click to expand...
Click to collapse
Right. Re-installed in Magisk Manager (FTR, v8.0.4) and after rebooting am back to a single icon. Plus the notification, like it used to be.
Thanks mate. Me likes.

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noskojv said:
ViPER4Android 2.7.1.6
Install this archive and nothing else is needed in addition.
For android 10 / 11.
Click to expand...
Click to collapse
after flashing this my SELINUX changed to permissive instead of enforcing.....
its working but in permissive mode.

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nareshfree said:
after flashing this my SELINUX changed to permissive instead of enforcing.....
its working but in permissive mode.
Click to expand...
Click to collapse
that's how it should be

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noskojv said:
ViPER4Android 2.7.1.6
Install this archive and nothing else is needed in addition.
For android 10 / 11.
Click to expand...
Click to collapse
Bam!!!
It's working!! Thank you

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MrMuffins5951 said:
First of all, I found this solution on Youtube. I spent hours finding a solution through forums because I like reading. I finally gave in and watched a Youtube tutorial. So this guide is for everyone who prefers reading like me.
1. Install Magisk 21.0. As of writing this is not the latest build (21.1). 21.1 does not seem to work with V4A on Android 11.
2. On Magisk Manager, install the module Audio Modification Library. Reboot.
3. On Magisk Manager, install Viper4Android. Reboot.
4. On Viper4Android, a prompt to install drivers will appear. Proceed and install. Device will automatically reboot.
5. On Viper4Android, go to settings and turn on Legacy mode. Driver status now should be Normal and audio format supported.
I am using Poco X3 NFC and Arrow OS. But the solution apparently works on other phones with Android 11.
Credits to munchy. Video can be found here:
.
Click to expand...
Click to collapse
Booom! Working well to me. 10/10 with my mt1 earphone.

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noskojv said:
ViPER4Android 2.7.1.6
Install this archive and nothing else is needed in addition.
For android 10 / 11.
Click to expand...
Click to collapse
Found a bug...
Although it's working perfectly, it has caused my pop up camera to stop working..

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another way.... enforcing Android 11 (R)
1.install busy box (magisk module)
2.reboot
3.install viper 2.7.2.1 apk - self reboot
4. uninstall viper application
5. install viper 2.7.1.6 apk
6. enjoy

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Baim alif said:
another way.... enforcing Android 11 (R)
1.install busy box (magisk module)
2.reboot
3.install viper 2.7.2.1 apk - self reboot
4. uninstall viper application
5. install viper 2.7.1.6 apk
6. enjoy
Click to expand...
Click to collapse
I removed all viper related and audio mods from magisk. Uninstalled viper app.
Before step 1, I installed Audio Modification Library in magisk.
Did all steps mentioned above. However viper 2.7.1.6 app would force close.
So I uninstalled it, installed 2.7.2.1 again and turned on "Legacy Mode" in Viper 2.7.2.1 Settings. BOOM!
It showed NEON enabled and status Normal.
Can confirm its working on my OP 8T custom rom, Android 11, Magisk 23!
BTW its a super mod! Thanks to all the devs and for the above instructions!
Hope this helps someone.

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Oneplus 6t
DotOs v5.1
Magisk v23
Firstly installed busybox module, reboot, audio modification library, reboot, installed viper apk 2.7.2.1 and inatalled the drivers and let it reboot. After i needed to install app 2.7.1.6 even tho it is force closing because then when i install back 2.7.2.1 legacy mode works, without installing 2.7.1.6 and going back it is always status: abnormal
Thanks all very much for your research!

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Maybe this post will help someone lost like i was... :
(I have a OnePlus 7 Pro, Android 11, and Magisk v23.)
- V4A was "Abnormal"
- With the "Permissive SELinux mod" -> No SIM Cards !
Then, I just installed the V4A FX from Magisk repo.
-> Nothing else ! (No Audio Compatibility Patch, Audio Modification Library, or other mods.)
Launch V4A -> Install Drivers -> Reboot.
With a Root Explorer, find this file :
/data/adb/modules/ViPER4AndroidFX/post-fs-data.sh
add these lines in the file :
magiskpolicy --live 'allow audioserver audioserver_tmpfs file { read write execute }'
magiskpolicy --live 'allow audioserver system_file file { execmod }'
magiskpolicy --live 'allow mediaserver mediaserver_tmpfs file { read write execute }'
magiskpolicy --live 'allow mediaserver system_file file { execmod }'
magiskpolicy --live 'allow audioserver unlabeled file { read write execute open getattr }'
magiskpolicy --live 'allow hal_audio_default hal_audio_default process { execmem }'
magiskpolicy --live 'allow hal_audio_default hal_audio_default_tmpfs file { execute }'
magiskpolicy --live 'allow hal_audio_default audio_data_file dir { search }'
magiskpolicy --live 'allow app app_data_file file { execute_no_trans }'
magiskpolicy --live 'allow mtk_hal_audio mtk_hal_audio_tmpfs file { execute }'
Reboot -> V4A Settings -> Legacy Mode !
Fully working V4A on Enforced Android 11

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for mojito , redmi note 10 user , with pe+ 11 rom ,
1.first disable musicfx app in system ,
2.install busybox magisk , reboot ,
3. install audio modification library , reboot
4. install viper in magisk ver 2.7.2 , then install driver then reboot
5. remove viper app , install viper 2.7.1.6 by Baim alif
, app will be force close as Drigio mentioned, then reinstall viper 2.7.2 app , walla it is working now