Is your android devices speakers volume too low. Here is a quick fix that will solve your problem
so you will need the following things
1. ES File Explorer (Download from Google play store)
3. ROOT permissions
Instructions
1. First go to es file explorer and give it root permissions and also in mount R/W give it R/W permissions
2. Then go to root/system/etc/mixer_paths.xml
3. change values of
"RX4 digital volume" to any number u wish but do not exceed more that 90 as it could harm your speaker
(This should be in the "speaker paths" or at the top of the sections in this file)
4. Save the mixer_paths.xml
5. Reboot your device
And that's it and now you will see considerable amount of difference in your speaker audio output
