UPDATE 5 : v3 uploaded with better balance
between earpiece and main speaker. Gain adjusted to prevent crackle. This mod best combine with Dolby Atmos Module, use around 50-60% volume.
UPDATE 4 : Magisk Module for the Mod added - for you who are in stock and still wish for OTA, use it instead so that u can have the mod systemless way
UPDATE : New zip for dual speaker with increased gain added
UPDATE 2 : ORIGINAL file added, in case people forget to back up
UPDATE 3 : BOTTOM ONLY BOOST zip added
As all we know, our phone only has one speaker at the bottom,
So just like the rest of similar mod for other phone (ex : my Oneplus 3)
Here's the file mod you can use to make the earpiece (the one near your ear) of your phone to act as secondary speaker
Download attached file,
Place it in /system/etc and change permission to 644
OR, download the ZIP file and flash via TWRP
For SYSTEMLESS METHOD, use Magisk version zip and install it through Magisk Manager
Try and report
ORIGINAL MOD CREDIT goes to @MichaelGroth
Flashable TWRP & Magisk ZIP by me.
Thank you @silvercat who brought this info on another device thread, and to @topjohnwu who made the systemless method for this mod possible through his Magisk creation.
HOW TO VIDEO by @ISF