V20 on 10p, Magisk and Viper4Android issue - I/O Error - SOLVED

joesee

Senior Member
Jul 22, 2007
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Just did a factory reset to 10p. Rooted with Magisk 13.3. Installed BusyBox module and rebooted. Installed V4A module and rebooted. V4A will not install the driver. I've tried everything I can think. Multiple other people have told me they have v4a working with just those two modules. Root checker verifies the phone has root. Does anyone have clear steps on how to get V4A working on 7.0 10p for the H918 V20?

Guitardedhero's .zip of v4a does not work.
viper4arise does not work either.
Seems a standard install of v4a direct from their site will not work. (It doesn't install as a system app - but it's not supposed to?)

It's like v4a is not being given root access, even though Magisk shows it being given. Also, when trying to rename or delete the audio_effects.conf, Root Explorer shows Magisk giving it root access, but denies me when trying. I'd just use SuperSU, but I want to use the systemless Magisk root, since Magisk's "hide" feature works perfect, and SuperSU's Root Cloak does not.

Does anyone have clear steps on how to get V4A working on 7.0 10p for the H918 V20?


UPDATE - I received a tip from a user online to give a shot the "IO test fix.apk" version of V4A. I installed this, and voila.. it works perfect. In fact, it works so well, I'm able to use v4a processing on any application that plays audio. I've attached the apk here for you to try if you're having issues running v4a with Magisk. Good luck!
 

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