Develop Bugs

Viper4Android working or not?? And if working how to install it?

Hello everyone
I have been really confused about this and i want to confirm if Viper4Android is working on our phone or not... And if its working can someone write a short guide on how to install Viper4Android and its drivers...

Working great.. no special things for installation... just install app, open app and install driver, reboot

mhp1995 said:
Hello everyone
I have been really confused about this and i want to confirm if Viper4Android is working on our phone or not... And if its working can someone write a short guide on how to install Viper4Android and its drivers...
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Click to collapse
Not working here. always asks to install the driver after reboot.

To get it working all I did was root my phone, installed viper4android.
After opening the app it asked to install the drivers I let it, then rebooted
everything worked just fine.

Viper4Android needs your phone to be on Permissive Kernel.

Working!!! Ty everyone will post a link and how-to install guide in my thread

bmwkeith said:
Not working here. always asks to install the driver after reboot.
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you probably forgot to set your selinux to permissive. download selinux mode changer here on XDA and the u'll be able to install the driver

Anyone know how to get convolver to work with CM 12.1 nightly on z00A?

Hi, can somebody confirm that Viper4android works without issues on the original rom?, i mean by this that after a reboot the app starts itself, as in my case I have to start the app to get its functionality working on my player
Thanks

is viper4android safe? It asks for a lot of permmisons

yeah viper4android is safe i have been running it since my galaxy s3 and never looked backed best app i have ever come across as far as boosting audio quality.
also guys having problems with not hearing any differance i had the same problem at first then i found a thread in general with a modified audio_policy.config file i had to replace with the original one then v4a worked a charm also kernel has to be permissive too so try it again with the modified audio_policy if you gave up because i nearly did

Not really working for me. I did the se permissive then installed v4a then installed driver and reboot. Now I'm using it mainly for Spotify and it works sometimes but then sometimes it will stop working unless I unplug the headphones and plug back in or sometimes it just stop working at all

Download the viper 4 android guitardedhero bought in my Zenfone max working.

Viper4FX not workin'?

Hello dudes and dudiens,
I got a question... I have a OnePlus 5t (Stock Rom / Franco Kernel / 128/8), I tried both systemless and system aplications of Viper4FX and I didnt have any effects on my
Sennheiser Momentum IE. But when I listened to music in my Car (via bluetooth) it had a effect. How could I fix this? :/ any thoughts.?
btw. I yes I have root + magisk (+ optional xposed)
have a nice day ^^

Are you using high res audio output? I had issues with Viper with that.

DerDavid01 said:
Hello dudes and dudiens,
I got a question... I have a OnePlus 5t (Stock Rom / Franco Kernel / 128/8), I tried both systemless and system aplications of Viper4FX and I didnt have any effects on my
Sennheiser Momentum IE. But when I listened to music in my Car (via bluetooth) it had a effect. How could I fix this? :/ any thoughts.?
btw. I yes I have root + magisk (+ optional xposed)
have a nice day ^^
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Click to collapse
Hi, you can try the version 1.7.3 - page 370 from this thread
https://forum.xda-developers.com/apps/magisk/module-viper4android-fx-2-5-0-5-t3577058/page370

I cant install the driver
manojpawarsj12 said:
Change FX compatible mode from normal to compatible
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Idk why but when I hit "Install Driver" it says: "The driver needs to be reinstalled. Do you want to do this now?"
I hit yes and then it sais: "Installion failed because of an I/O error. Try rebooting your device and try again"
I rebooted it but still not workin idk why .

DerDavid01 said:
Idk why but when I hit "Install Driver" it says: "The driver needs to be reinstalled. Do you want to do this now?"
I hit yes and then it sais: "Installion failed because of an I/O error. Try rebooting your device and try again"
I rebooted it but still not workin idk why .
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Click to collapse
Install busybox and then try to install driver
Hope it works

I was happy and did not know. It was perfect my viper4fx there magisk suggested an update to version 1.7.5 unfortunately I lost the equalizer, it did not work anymore. I installed busybox, drivers, dozens of times, backed up the versions, nothing. Damn update, I think I'll have to format. I'm sad.

Go into the App, then close it with the exit button in the menu. Then restart the App.
That's works for me.

Jajara249 said:
I was happy and did not know. It was perfect my viper4fx there magisk suggested an update to version 1.7.5 unfortunately I lost the equalizer, it did not work anymore. I installed busybox, drivers, dozens of times, backed up the versions, nothing. Damn update, I think I'll have to format. I'm sad.
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Click to collapse
I have the same issue. Now I use V4A from the XDA store and just install viper manually. It always works. It also shows up as a magisk module, and it works just fine with AML.
Also, if you want to use the magisk repo V4A FX by zackptg5, it doesn't seem to work on oreo but it works great on pie.

Pixel 2 XL Rooted - Viper4Android v4.1, Magisk 19

Sorry for the noob question.
Running a Pixel 2XL - Pie April '19 Security Build, Magisk v19.0. When trying to install Viper4Android FX v4.1, I have tried seemingly every combination of options, but cannot get the 2.5.0.5 driver to install.
Both the material and regular app install and as a system or user app. Just the driver never gets installed?
Please advise if I've missed something obvious - thanks in advance!

Try flashing in TWRP.

miked2332 said:
Try flashing in TWRP.
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working with magisk v 18.1 without problems

Latest Canary working also.

Google always tries to disable the root

@pepins: It's not that Google always tries to disable root, Play Protect always tries to disable the Material Design version of the V4A app.
@Switch Blade: When you tried updating it hung for a while on the prompt to update, then it threw up a message to reboot? After rebooting, did it prompt to install the driver again? I encountered that and it's probably a bug in the install script for the module. You need to head to the Magisk thread for the module and bring this up. That said, installing through TWRP, as recommended in the first reply to your post, is the way to go here.

Strephon Alkhalikoi said:
@pepins: It's not that Google always tries to disable root, Play Protect always tries to disable the Material Design version of the V4A app.
@Switch Blade: When you tried updating it hung for a while on the prompt to update, then it threw up a message to reboot? After rebooting, did it prompt to install the driver again? I encountered that and it's probably a bug in the install script for the module. You need to head to the Magisk thread for the module and bring this up. That said, installing through TWRP, as recommended in the first reply to your post, is the way to go here.
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I get the update driver everytime on first install when if I have reset phone or reinstall Magisk and have to use recovery. After that I can update or reinstall in Magisk.
Sent from my Pixel 2 XL using XDA Labs

miked2332 said:
Try flashing in TWRP.
Click to expand...
Click to collapse
Tried flashing from TWRP - same issue, upon openning Viper4android app, tells me the driver isn't installed - then fails on IO.
Weird

Check Magisk see if viper is in SU. If not Go-to viper app info clear data and turn storage off. Sometimes this make Magisk ask for SU for viper. Makes it work sometimes.
I had to use this method for a while to get it to work. Also I have musicfx disabled in apps. Had to do that on my Nexus 6 and just kept on doing it. Uninstall Viper reboot.
Install Viperfx don't reboot
Install audio modification reboot.
It can be done in TWRP also. If you reflash either of those a second time it uninstalls them if you didn't know.
I'm not a developer I pretty much just mess with these things until they work for me.
Sent from my Pixel 2 XL using XDA Labs

miked2332 said:
I get the update driver everytime on first install when if I have reset phone or reinstall Magisk and have to use recovery. After that I can update or reinstall in Magisk.
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Click to collapse
Of the three devices I installed V4A on the P2XL was the only one to have an issue. Normally it's not an issue, so what changed this time I don't know. Anyway, the other two devices, a Moto X Pure and a Galaxy S4, installed the driver through Magisk without difficulty. As mentioned, flashing V4A in TWRP on the P2XL resolved things.

Strephon Alkhalikoi said:
Of the three devices I installed V4A on the P2XL was the only one to have an issue. Normally it's not an issue, so what changed this time I don't know. Anyway, the other two devices, a Moto X Pure and a Galaxy S4, installed the driver through Magisk without difficulty. As mentioned, flashing V4A in TWRP on the P2XL resolved things.
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Click to collapse
I tried just installing opposite features today didn't work. On my phone it goes 2.5.0.5. Old Style, System App, and after the update I have to choose no on the last. It's my 1 reason for using root.
Sent from my Pixel 2 XL using XDA Labs

Try SeLinux Permissive apk

This happens every now and then for me; especially if I'm updating V4A after being on an older version for a long time...
I've forgotten where I've seen/read it, but many times you can't simply update it and/or install the driver from the app. What I end up doing (forced to do) is to uninstall the app (from within Magisk), reboot, and re-download/re-install it (searching for module from within Magisk app) and it should (usually) install the driver again...I usually install it by selecting the 2.5.0.5 and "material" version and as a "system app"...
I dunno why...but this seems to do the trick, but I have to do it frequently now and then...

I use Magisk module that works for speakers, but not with headset.It happens only to me?

miked2332 said:
Check Magisk see if viper is in SU. If not Go-to viper app info clear data and turn storage off. Sometimes this make Magisk ask for SU for viper. Makes it work sometimes.
I had to use this method for a while to get it to work. Also I have musicfx disabled in apps. Had to do that on my Nexus 6 and just kept on doing it. Uninstall Viper reboot.
Install Viperfx don't reboot
Install audio modification reboot.
It can be done in TWRP also. If you reflash either of those a second time it uninstalls them if you didn't know.
I'm not a developer I pretty much just mess with these things until they work for me.
Sent from my Pixel 2 XL using XDA Labs
Click to expand...
Click to collapse
These steps allowed me to install the driver!!!! Thank you!

Installed fine for me. Using Magisk 18.1 though.
Here are more instructions (if some continue to have problems) and a Viper profile for XDA members to try out. Works very well to make the phone speakers sound good.
https://forum.xda-developers.com/pixel-2-xl/how-to/viper4android-pixel-2-xl-stereo-speaker-t3919285

Viper4Android not processing

Anyone able to get Viper4Android to process? I have it installed through Magisk and it works when first installed but eventually stops. Only way to get it working again is to reboot.

I think it stops when changing output forms. Instead of rebooting fully, try hitting the 3 dots on the top right of the app and hitting exit and then relaunching the app.

I tried that and force closing it. Didn't work but what seems to have fixed it was uninstalling the driver...it then asked for root permission to do that. After a restart everything is working even when changing apps. We'll see if it's permanent or not. Thanks for the reply though.

Try this: uninstall your current module, reboot, and install this apk. It's an unofficial material design 2 viper that auto generates a magisk module when you install it for your device. I got mine working properly.

Thanks, I'll try that. Been having to reboot again.

Well along with the acp and aml modules that method worked. Hopefully this sticks. Thank you for your help!

TENN3R said:
Try this: uninstall your current module, reboot, and install this apk.
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Click to collapse
That's what I have, and it worked at first but not any longer on Pixel 3a.
Are there other modules that should be installed, or can't be, as well?
-G

ggibby said:
That's what I have, and it worked at first but not any longer on Pixel 3a.
Are there other modules that should be installed, or can't be, as well?
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Click to collapse
I only know about that module, and the one from ahrion and Zackptg5 (here).
Have you tried in this module enabling the compatibility mode and reboot?

TENN3R said:
Have you tried in this module enabling the compatibility mode and reboot?
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Click to collapse
Compatibility mode was enabled, so I disabled it and now it seems to be working.
Thanks for the hint!

Android Q: Viper4android compatible?

I've been trying to get viper4android working on Android q for quite some time but the module and the app itself does not want work at all. Plus when viper asks you to install the driver from the app it will end up in a bootloop. Has anybody found a temp workround for it?
Device: Pixel 2 XL Android version: Q Beta 3

I'm having a similar issue, only the driver install is asked again upon reboot ;_;

Thats only why i rollback from Q.
Total**** sound without

Ok, got it working on beta 3, using the apk 2.7.1.0 from XDA. It appears to install as a magisk module, along with AML. It didn't work on my first try, then all was good. I need to run it in compatibility mode from the menu. https://labs.xda-developers.com/store/app/com.pittvandewitt.viperfx

In android P what version did you use?

Always used the magisk repo version before- I tried this many times on Q, with and without AML, but always got the dreaded install driver dialogue. Also tried SE Linux permissive, but no luck. I've never used the apk before, but am sat here now listening to music quite happily. It's survived a couple of reboots (just checking).

1959best said:
Ok, got it working on beta 3, using the apk 2.7.1.0 from XDA. It appears to install as a magisk module, along with AML. It didn't work on my first try, then all was good. I need to run it in compatibility mode from the menu. https://labs.xda-developers.com/store/app/com.pittvandewitt.viperfx
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Hm, I just tried that. I downloaded the one off XDA LABS and checked compatibility mode on the app. Still showing up as driver not installed. Viper4Android is literally the key element for my phones such a good module.

Try another reboot?

Knxed_ said:
Hm, I just tried that. I downloaded the one off XDA LABS and checked compatibility mode on the app. Still showing up as driver not installed. Viper4Android is literally the key element for my phones such a good module.
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Click to collapse
I just upgraded to Android 10 on my Pixel 2XL and have Viper running now. Download stable 2.7.1.0 from XDA Labs, grant root with Magisk. Check compatibility mode THEN install the driver. Restart, make changes, and then be sure to check "Attach audio effects" in settings once you make your changes.

ifellouttabed said:
I just upgraded to Android 10 on my Pixel 2XL and have Viper running now. Download stable 2.7.1.0 from XDA Labs, grant root with Magisk. Check compatibility mode THEN install the driver. Restart, make changes, and then be sure to check "Attach audio effects" in settings once you make your changes.
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Mhh doesn't work for me this way.still asking for driver after reboot lol

Thanks. Worked for me on second try. Followed the instructions rebooted didn't work, installed drivers again rebooted and then it worked.

pa.pn2 said:
Mhh doesn't work for me this way.still asking for driver after reboot lol
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Same here sadly...

sidhaarthm said:
Same here sadly...
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Click to collapse
Ok, here's what you gotta do to get it to work, this is the ONLY method I've had consistently work for me from beta 3-public release(did it an hour ago and worked perfectly)
First, uninstall any viper you have also make sure you completely uninstall audio modification library if you have it installed, not disable, uninstall it and reboot after uninstalling what I've listed.
After you're all booted back up, install viper from labs (link in this thread)(Also, forget about compatibility mode, don't use it) now open viper but do NOT install the driver yet, just open the application then go to magisk and install audio modification library but dont let magisk reboot the phone after it installs. Once installation completed, go back to viper and install the driver and let it reboot. Once booted, go straight to magisk and DISABLE audio modification library (uncheck the box next to it if you dont get what I mean) don't uninstall it. After disabling AML head back to viper and install the driver again. Now once rebooted is the moment of truth, if you open viper and its installed you're obviously done but if it's not installed you have to take this next step: don't install the driver just yet, go to magisk and re-enable AML then back to viper and install the driver. I don't see why this would not work for you guys, I know this isn't the easiest tutorial to follow but make sure you follow it to a T, if you mess any step up you need to start from scratch and uninstall both AML and viper and start again.
Good luck guys and may the audiophile Gods be on your side through this process!

1dopewrx05 said:
Ok, here's what you gotta do to get it to work, this is the ONLY method I've had consistently work for me from beta 3-public release(did it an hour ago and worked perfectly)
First, uninstall any viper you have also make sure you completely uninstall audio modification library if you have it installed, not disable, uninstall it and reboot after uninstalling what I've listed.
After you're all booted back up, install viper from labs (link in this thread)(Also, forget about compatibility mode, don't use it) now open viper but do NOT install the driver yet, just open the application then go to magisk and install audio modification library but dont let magisk reboot the phone after it installs. Once installation completed, go back to viper and install the driver and let it reboot. Once booted, go straight to magisk and DISABLE audio modification library (uncheck the box next to it if you dont get what I mean) don't uninstall it. After disabling AML head back to viper and install the driver again. Now once rebooted is the moment of truth, if you open viper and its installed you're obviously done but if it's not installed you have to take this next step: don't install the driver just yet, go to magisk and re-enable AML then back to viper and install the driver. I don't see why this would not work for you guys, I know this isn't the easiest tutorial to follow but make sure you follow it to a T, if you mess any step up you need to start from scratch and uninstall both AML and viper and start again.
Good luck guys and may the audiophile Gods be on your side through this process!
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Take a bow good sir, it worked! Had to follow the steps to the end as first time around it didn't work. Now seems to be alright (see attached)
For anyone else wondering, I upgraded from Aug 9.0 build to Q (020) last night by flashing the factory ROM without wipe. Rooted, ads disabled and now ViperFX working. Life is goooood :angel:

sidhaarthm said:
Take a bow good sir, it worked! Had to follow the steps to the end as first time around it didn't work. Now seems to be alright (see attached)
For anyone else wondering, I upgraded from Aug 9.0 build to Q (020) last night by flashing the factory ROM without wipe. Rooted, ads disabled and now ViperFX working. Life is goooood :angel:
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I think it also worked for me now but in your screeny it says not enabled.same with me.
But i have all the options for speaker headphones usb etc.think it worked

pa.pn2 said:
I think it also worked for me now but in your screeny it says not enabled.same with me.
But i have all the options for speaker headphones usb etc.think it worked
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Ah yeah, it's probably because I hadn't enabled it until that time. Here's a fresh screenie

sidhaarthm said:
Ah yeah, it's probably because I hadn't enabled it until that time. Here's a fresh screenie
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what do you mean with didnt enable it?
i did all the steps, i can adjust all settings but if i play something in g music it still says not enabled....what did i miss?

pa.pn2 said:
what do you mean with didnt enable it?
i did all the steps, i can adjust all settings but if i play something in g music it still says not enabled....what did i miss?
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By enabling, I meant turning on the master limiter and other settings. I adjusted mine with a nice YouTube track playing in the background and it all worked a treat. Yet to do my Bluetooth earphones though

sidhaarthm said:
By enabling, I meant turning on the master limiter and other settings. I adjusted mine with a nice YouTube track playing in the background and it all worked a treat. Yet to do my Bluetooth earphones though
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I switched on the master and now its working.awesome find

@1dopewrx05 I followed your mini tutorial to a T and it worked perfectly. Thank you for taking the time to do this, I really appreciate it. Just updated my old faithful to 10 earlier and gonna mess around with some of the neat features. I can't live without Viper, it's essential to me.