Why the sound is lost in the smartphone

If you find that the sound on your Android phone has disappeared, there is no need to worry. Generally, you can fix the sound issue on your own without having to use any professional services. This article aims to guide you on what actions to take and what aspects to consider when tackling this problem.

Why the sound is lost in the smartphone

The causes of sound issues in the phone can originate from both the software and hardware components. Some of these issues can be resolved by adjusting certain settings, but if specific modules responsible for audio functionality are malfunctioning, it may be necessary to take the phone to a service center.

Common reasons for sound disappearing on the device include:

• Improper restoration of factory settings;
• Unauthorized firmware updates;
• Installation of pirated applications;
• Infiltration of virus programs.

Initially, it is important to check the settings of the Android device. Pressing the volume control button will indicate the current volume level. If the volume is at the maximum but there is still no sound, further investigation is needed.

There are instances where call signals or system alerts can be heard fine, but the speaker’s voice cannot be heard. The reason behind this is quite simple – during a conversation, the device owner might have accidentally touched the volume control button, resulting in the sound level being set to the lowest. You can adjust the sound level back to the desired level by following the same method when making or receiving a call.

Diagnosis

In order to determine the reason for the loss of audio on your smartphone, you will need to conduct a diagnostic. You can obtain the universal software, Doctor Plus, by visiting the official website and downloading it. With the help of the diagnostic report, you will be able to identify the cause of the missing sound on your Android device and proceed with resolving the issue.

Doctor Plus program

• Download, install, and open Doctor Plus.
• Navigate to the second tab and begin testing various audio devices.
• Choose "headphones and microphone", follow all the given instructions, and click on "Play".
• Repeat the same steps in the "Speaker and microphone" and "Receiver and microphone" tabs.
• Proceed to check the headphone jack in the required section.

Finding problems in software

It is not uncommon for the phone owner to accidentally set the device to "silent" mode. To resolve this issue, the first step is to locate the "Sounds and notifications" section in the phone’s settings and identify the currently activated profile. If the user possesses the necessary expertise, they can attempt to re-flash the Android phone, although it is advisable to proceed only if they are confident that the issue arose due to an error in the previous firmware.

The issue arises when videos are played without sound, while music can be heard. It seems that this problem occurs due to a video player lacking the required codecs. The solution, in this case, would be to install a different video player, such as MX Player Pro.

Hardware problems

If there is audio playing through the speakers, but no sound can be heard through the headset, then the issue could either be with the headset itself or the audio jack. If it’s the headset, it would be necessary to replace it with a new one. If it’s the audio jack, there are a couple of troubleshooting steps that can be taken. One option is to blow into the audio jack to remove any dirt or debris that may be causing a blockage. Another option is to clean the contacts in the phone’s audio jack using a stick with absorbent cotton soaked in alcohol. If these steps don’t resolve the issue, it would be advisable to visit a service center and have the faulty part replaced.

Possible Causes of Speaker Malfunctions:

• Blockage in the gadget: Sometimes, the sound may not completely disappear, but owners may notice a significant decrease in audibility. In such cases, it may simply be a matter of cleaning the element, although this should be done carefully to avoid damaging the membrane.
• The speaker coil may have been damaged or shorted out, as indicated by a faint crackling noise from the sound device. However, you can still hear the other party. To resolve this issue, it is recommended to contact a specialized workshop and have the faulty part replaced.
• If there is a break in the coil, the sound will completely disappear, and the affected element will need to be replaced.

To check the audio jack, you can connect headphones and see if there is any sound. If there is no sound, you can try the following troubleshooting steps:

• While the headphones are plugged in, press the volume up button and then remove the plug;
• Insert and remove the plug multiple times;
• Blow compressed air into the audio jack;
• If water has entered the device, partially disassemble it and clean the button contacts.
• There might be tangled tendrils in the audio jack that inform the device to connect the headphones, causing no signal to be sent to the speakers. In this case, it is necessary to disconnect the tendrils. Otherwise, the phone should be taken to a service center.

Sometimes, the sound control button stops working due to dirt or debris getting stuck underneath. However, this issue can also be caused by a more serious problem such as damage to the sound control board. It can be difficult to determine whether this is the case, so it is recommended to have the device diagnosed by a professional and consider replacing the board.

Factors that can cause the sound amplification circuit of phones to burn out include:

• Water getting inside the device
• Excessive heating during program operation in an overloaded state
• Mechanical impact or manufacturing defect

Loop breakage and checking the speakers for proper operation

If you have a flip phone or a slider and you are experiencing a loss of sound, it could be due to a broken loop. When you open and close the phone cover, the loop moves, and over time, the contacts may deteriorate. This can result in a complete loss of sound and the volume control on the phone may also stop working. Water on the contacts can also disrupt the functioning of the loop. While damage to specific parts of the device is usually the cause of a decrease in volume or complete sound loss in about 80% of cases, sometimes these issues can be caused by a program failure.

It so happens that one of the speakers is specifically designed for playing music, while the other is meant to ensure audibility during conversation. Consequently, if the sound on your smartphone has disappeared, both during usage of various applications and when making calls, it is likely that the issue lies elsewhere, rather than with the speaker system. In order to determine whether the speaker is functioning properly, you should switch your device to speakerphone mode. If you can hear the other person clearly, then the problem indeed lies with the speaker. At this point, you will need to seek professional help from specialists who can repair or replace the faulty module.

When the phone is switched to speakerphone

Restore sound with data deletion and factory reset

Issues may arise as a result of recently installed software. Sometimes, after installing a third-party media player, equalizer, or other software, the audio may stop working. In such cases, you will need to uninstall the application, reboot the device, and the problem should be resolved. Additionally, consider installing a reliable antivirus program. Identify any recently installed applications and uninstall them, while also clearing the cache and memory data.

Clearing cache, memory data, and applications on Android devices

If none of the previous methods work, you can try performing a factory reset. In the event that this solution does not resolve the issue, it is possible that the phone is physically damaged.

Attempt all of the suggested methods in the article to identify the root cause of the problem. Fortunately, disassembling the phone is not required for this troubleshooting process. Should you be unable to resolve the issue, it is recommended to take the device to a professional repair workshop.