Galaxy S4 Volume Boost Mod Gives Your Louder Sound (Jelly Bean and KitKat)

Do you feel that the volume output of your Galaxy S4 is not loud enough? If yes, today we got an effective workaround for you. The problem of low volume is universal to most Samsung Galaxy devices. If you are at a calm place, low ringtone volume is not a problem at all but when you are out in a market or a crowded or noisy place and you are unable to hear the notification sounds, it does create problems.

We certainly do not want irritatingly loud volume but it should at least be audible enough so that we do not miss a call or attend to an incoming notification. Earlier, we shared a trick on how to boost volume on some older Galaxy device like S3 and Note 2. The method works on the Galaxy S4 too but the volume gain configuration is a little different.

If you browse the system/etc directory on your device, you will find 2 files, namely “default_gain.conf” and “Volume.db”. These files contain the configuration of volume intensity values that determine how loud the sound output of your device will be. By editing those values using appropriate method, you can significantly increase or decrease the speaker volume of your Samsung Galaxy S4.

Since the procedure given below involves modifying system files on your Galaxy S4, it is just imperative that you have root access on your device. If you have yet rooted your Galaxy S4, we have rooting tutorials for almost all variants of the device.

How to Root Samsung Galaxy S4 (All Models)

Tips and Tricks for Galaxy S4 Users

Disclaimer:

Please note that though I have tested this method of increasing volume on my Galaxy S4 GT-I9500, I do not guarantee that it’ll work on all versions of the device. Further, do not try the procedure on any your Galaxy S4 with any ROM other than one that is based on stock TouchWiz.

Section I: For Galaxy S4 GT-I9500

This section is only for Galaxy S4 international model owners.

Requirements:

  • A rooted Samsung Galaxy S4
  • Modded volume gain configuration file: default_gain.zip
  • Default volume gain file (to restore if anything goes wrong): default_gain_backup.zip
  • Install a good root file explorer app (see below) on your Galaxy S4.

File Explorer Root Browser

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Download

How to Boost Galaxy S4 Volume:

Follow the steps given below to increase volume on your Galaxy S4:

  1. Extract the “default_gain.zip” file and copy default_gain.conf  to your device’s internal or external SD card.
  2. Install Root Browser or any other root explorer app from the Google Play: 

    File Explorer Root Browser

    JRummy Apps Productivity Free

    Download

  3. Open the root explorer app and navigate to the system/etc folder. Here you will find the original volume configuration file for your phone. Backup the original volume gain file present on your Galaxy S4 by copying and pasting them to the external storage. You can later restore the original volume settings by restoring the files to the system/etc directory.galaxy s4 volume boost backup
  4. Now navigate to default_gain.conf, tap and hold it and select “Copy” option.
  5. Navigate to the system/etc folder and paste the file here. When it prompts to overwrite the file, choose  “Yes”.
  6. When the file is copied, fix its permission to rw-r–r–. Tap and hold the default_gain.conf file and select “Permissions”. Now configure the permissions as shown below.galaxy s4 volume boost-fix-permission
  7. Finally, reboot the phone.

Done! Now you should experience enhanced and louder speaker volume on your Samsung Galaxy S4.

Do it Yourself:

In case you feel the volume too loud for you, you can edit the volume values yourself. The volume gain configuration in the file provided above has following values:

General Volume (Normal, Speaker) increased from 112 to 132.
Ringtone Volume (Ringtone, Speaker) increased from 112 to 132.
Earpiece Volume (Incall, Earpiece) increased from 128 to 132.
Speakerphone Volume (Incall, Speaker) increased from 144 to 154

Here is an example of how you can modify the volume gain values as per your requirements:

Original Code:

Modifier "Ringtone" {
SupportedDevice {
"Speaker"
}
Enable {
{ "Speaker Digital Volume", 112 },
{ "SPKOUTL Input 1 Volume", 32 },
{ "SPKOUTL Input 2 Volume", 32 },
}
}

Modified Code:

Modifier "Ringtone" {
SupportedDevice {
"Speaker"
}
Enable {
{ "Speaker Digital Volume", 142 },
{ "SPKOUTL Input 1 Volume", 32 },
{ "SPKOUTL Input 2 Volume", 32 },
}
}

If you have any question or problem related to the topic, you are always welcome to share with us via comments. Cheers!

Section II: Galaxy S4 LTE, US and Canadian Models

If you own a Samsung Galaxy S4 GT-I9500 LTE, or one of the US variant of the device like AT&T SGH-I337GT-I337MT-Mobile SGH-M919Verizon SCH-I545Sprint SPH-L720, etc. try the method given below to boost/increase volume on your phone.

Requirements:

  • A rooted Galaxy S4 with a custom recovery (CWM/TWRP) installed on it.
  • The volume hack file. Download one of the following, or all files for different level of volume gains. These files can be flashed using a custom recovery. We recommend medium level volume boost:
    • Stock_Volume_with Original_Gain.zip
    • Volume_Boosting_Sound_MODERATE.zip
    • Volume_Boosting_Sound_VERY_LOUD.zip

How to Install Volume Hack on Galaxy S4:

  1. Download the preferred file from above and copy the zip to your phone’s internal or external SD card.
  2. Turn off your phone and boot it into Recovery Mode: hold down the Volume Up+Home+Power buttons together for about 5-6 seconds till the “Samsung Galaxy S IV” logo blinks for 2 times. Then release the power button only and wait till you see the recovery menu like this:galaxy-s4-clockworkmod-recovery
  3. Use the Volume and Power keys to navigate and select options in Recovery mode.
  4. Important: Do not forget to backup your current ROM using “backup and restore” option.
  5. Scroll to “install zip from sdcard> choose zip from sd card”, select the volume hack zip file that you copied to phone in Step 1.
  6. Select “yes” when asked to confirm installation and when it is done, go back to main menu in recovery.
  7. Finally, select “reboot system now”.

Wait till your Galaxy S4 boots up. now play a tone or music file to check the difference. Hope it helps you enjoy louder sound on your Galaxy S4. Cheers!

Galaxy S4 Volume Boost for Android 4.4.2 KitKat:

If you have updated your Galaxy S4 to the Android 4.4.2 KitKat firmware, download the preferred Galaxy S4 volume boost mod file from below, extract the zip and, using a root file browser,  copy snd_soc_msm_2x_Fusion3 to \system\etc\ directory. Do not forget to fix the file permissions to rw-r–r– (0644) after copying the file. See the detailed steps above. The mod will work on Android 4.3 Jelly Bean firmware too.

 

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