Samsung Galaxy J7 has very low Speaker and Normal volume , But don't worry ! Here is a Guide by messi2050 ( Thanks a lot ) , to increase Speaker volume of Samsung Galaxy J7 .
- Rooted Samsung Galaxy J7 ( search on Google how to root )
How to Increase Speaker Volume in Samsung Galaxy J7 -
Note - We are not responsible for any damage caused to your Smartphone .
Step 1. Download mixer_paths.xml file from here .
Step 2. Go to System>etc Replace the new mixer_paths.xml file with old one ( Keep a backup of old one before replacing ) .
Step 3. Set permission to R W R R .
Step 4. Reboot .
All credits - messi2050 ( via-xda )