How to remove external factors that affect the sound of mobile device

Last Update date : Sep 30. 2021

The sound of mobile devices can be affected by common external factors that we are less careful about or arise in certain situations. Here are a few notes to check on how your protector accessories, especially ones with hardening liquid, can affect the sound and what to check on if your device has been immersed in water.

Before you try out below recommendations as to your solutions, be sure to check if your device's software and related apps are updated with latest version. Please check how to update your mobile device's software in following order. 

Step 1. Go to Settings > Software update.

Step 2. Tap on Download and install.

Step 3. Follow the on-screen instructions. 

Things to consider when using Samsung-unapproved protector accessories


Please keep in mind not to use Samsung-unapproved protector accessories covering the Camera or Flash. We recommend using Samsung-approved accessories. 

Some of the Samsung-unapproved protector accessories like films, covers, vinyl which attach to the device's backside may cover the Camera or Flash, and this causes to block the Air path inside the device. Due to blocking of Air path, receiving sound is not heard clearly or is broken irregularly, and volume may be also low. 

If the protective vinyl is not properly removed from the product and the microphone hole is blocked, the sound of the transmission sound may be heard, or noise may occur. Check the microphone at the bottom of the product and remove any protective plastics or foreign objects before use.

Note: Make sure to remove the protective vinyl completely that is attached together when supplying products.

Caution when using tempered glass protective film


Recently, when using a product of tempered glass (dome glass type) among the protective films sold on the market, there are cases of damage to customers, such as inconveniences in the use of smartphone product functions due to excessive use and misuse of the hardening solution for attachment. Be careful when attaching the protective film.


Inconvenient use of smartphone product functions due to overflow of misuse of curing solution used when attaching tempered glass (dome glass) protective film 

A few types of smartphone damage caused by hardening liquid

Type 1. The hardening liquid penetrates the phone receiver (receiver part) of the product and blocks the speaker hole so that the incoming sound is not heard or heard during a call. 

Type 2. The stereo effect is degraded when playing multimedia.

Type 3. The hardening liquid penetrates through the left and right-side button keys, and may not be pressed well.

Prevention method

When using the hardening liquid, be careful not to infiltrate the hardening liquid into the smartphone speaker or button. 

As described above, malfunction of the product due to penetration of the hardening liquid may cause inconvenience to the smartphone, as well as charge for repairing it. When purchasing a tempered glass protective film product, carefully observe the precautions for attachment, and pay special attention to the use of curing liquid even when attaching the product to avoid damage to the smartphone product.

Note: Make sure to remove the protective vinyl completely that is attached together when supplying products.

① Receiver        ② Hardener        ③ Button

Device has been immersed in water or speaker is wet


If the device has been immersed in water or the speaker is wet, sound may not be heard clearly during a call because water may get in the speaker hole during exposure underwater. 

Firstly, please wipe the device smoothly with a dry, soft cloth and dry it thoroughly before using the device. For faster drying, shake the device smoothly a few times whilst holding the speaker face down. Despite this, when some moisture remains on mesh in the front speaker, the sound quality may still be unclear. 

The moisture on the mesh can be removed by speaker vibration during a call, please check the device’s sound state while making a call for a period of time.

If you are still having trouble with the sound after trying these tips, please visit a Samsung Service Center with the device.

If you're experiencing unusual behavior on Samsung mobiles, tablets, or wearables, you can send us an error report or ask us a question in the Samsung Members app. This allows us to take a closer look at what is happening. The data is anonymized and only held for the duration of the investigation. Find out more about how to send an error report here: How to use the Samsung Members app 

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