How to turn on the speaker on your smartphone. Why doesn't sound work on my computer? Moisture and dust getting inside the case

April 03, 2017 19087 views 0 comments

Today, a fairly common problem that owners of mobile devices increasingly face is the unsatisfactory performance of the speakers. A bad sound signal, noise, or no sound at all is a signal about a service center. It will be very difficult to determine the cause of the breakdown on your own, let alone repair it.

What can cause the speaker to malfunction?

The causes of speaker malfunctions can be very diverse and quite unexpected. Therefore, you should not engage in amateur activities, but still turn to specialists. Most often, shortcomings are observed in the dynamics or in the microphone. By their design, these elements have hourly limitations in operation. The following may cause malfunctions:

Water (liquid) gets inside the phone, which leads to oxidation of contacts and also negatively affects the boards;

External, mechanical influence (impact, fall) - causes damage to contacts, including the speaker itself;

Contamination of specially designed loudspeaker holes (can only be corrected by cleaning with compressed air);

Violation of the device's audio connector (a clear indicator - the sound does not switch to headphones);

Defects in the operation of software or firmware;

The cable is malfunctioning (if you have a slider or clamshell phone).

Main types of repairs

Qualified specialists will be able to find out the cause of your mobile malfunction, and based on this they will select the most suitable and correct repair method. For example,

Compensation for the auditory speaker will be relevant if you cannot hear the person on the other side at all, which is not the case with him; or extraneous noise is noticed during a conversation; if the conversation is periodically interrupted (and if you move the phone from side to side, it appears again).

The loudspeaker speaker is replaced when there is no ringing of an incoming call (or there is, but with wheezing, noticeable distortion); Speakerphone does not work; music is playing, but very quietly (mainly caused by water).

Replacing the microphone. Carried out if there is no voice recorder recording; in case of interference and noise during a conversation. Most modern phones have two microphones (talk and noise-canceling), which work in harmony, but if one of them breaks down, the other does not stop functioning.

Repairing the headset jack (carried out when the phone is always in headphone mode; when one ear periodically stops working; uncontrolled speakerphone playback).

Replacing the audio control chip. This method is the most difficult, because you have to resolder the chip on the motherboard. This breakdown is caused by mechanical impact on the mobile device or by connecting low-quality accessories.

Defects caused by improper operation of the speaker can be of various types. These are problems with the loudspeaker itself and with individual internal parts (modules). You can find out the exact reason for such operation of the device using diagnostics, which is performed in specialized service centers. Only qualified specialists will be able to solve the problem by choosing the most correct and suitable option for repairing your gadget.

Read why the sound on the phone disappeared when receiving SMS, calls, playing music, or using headphones. Let's understand all the reasons and what to do. Sound problems often occur on Android tablets and phones. They may be associated with software failures and hardware violations.

Malfunctions occur due to careless use, installation of applications not from the Play Market, or normal wear and tear of parts. Let's figure out why the sound on the phone disappeared and how to get rid of this problem.

Why is there no sound on my phone? Check your settings!

First, check the sound using the volume button, perhaps you turned it down and forgot about it. In this case, it is enough to increase the volume using the “+” key located on the side panel of the phone. If the sound on SMS has disappeared on your phone, it will take a little longer to fix it.

In 80% of cases, sound that has disappeared for no apparent reason can be returned by simply correcting the settings. To do this, you need to first check them, and then move the necessary sliders to the active position. You can check the settings using the following algorithm:

Open the main menu and find the gear icon labeled “Settings.”
A large list will open in front of you, from which you need to select the “Sounds” or “Volume” tab. The name will depend on your version of the Android operating system.
A list of volume modes will appear in front of you; adjust the slider for each. If you do not receive notifications, then you need to go to the tabs that regulate their delivery and sound. Here you can not only adjust the volume, but also select a melody or allow certain applications to send you notifications.

In most cases, this setting is enough for the phone to start working normally again. After you set the necessary parameters, check the sound.

If the phone works fine, you can hear the caller and the sounds of certain applications, but you cannot use the radio or play media files normally, then the problem may be with the software.

In most cases, all you need to do is turn up the volume in the player or a separate application. If you cannot play a certain file, then you may not have enough codecs. Download audio codec packages or install a new player.

What should I do if the sound in the phone settings does not turn on?

Sometimes the sound disappears due to a conflict between the system and a particular application. In this case, you will not be able to change the settings; they will not be saved. Remember after installing which application the problems appeared, disable or delete it. Then reboot the device.

If you have recently installed a lot of programs, then you need to use safe boot mode:

Press the power key.
From the menu that appears, select “Shutdown” (it may be called “Turn off power”). Hold your finger on it for 5-6 seconds.
A notification should appear indicating that you have entered Safe Mode. Confirm your choice with the “Ok” button.
The device will shut down and start in Safe Mode and will not run third party apps.
Check if the sound works in this usage mode.

If sound appears, then you need to remove some of the applications that you installed last. Please note that the instructions provided for putting your smartphone into safe mode may not work with all systems. Most often, the algorithm is useless for gadgets that have their own modified shells.

You can also back up your data using cloud storage and then do a full reset. Rolling back changes made by the user will allow you to get a clean phone without viruses and other files that can negatively affect the operation of the device.

Incorrect flashing

You can find many versions on the Internet that allow you to personalize your smartphone. But not all of them are safe. Often, after updating the firmware, users encounter various problems that cannot be solved by simply changing the settings.

For example, you can install firmware that does not include drivers for the speaker or correct operation of audio equipment. Then you will find after turning it on that the sound on the phone has completely disappeared.

Only re-firmware or rollback can help in this situation. To do this, you need to use special programs or enter Recovery mode. But it is best to be careful about installing the operating system on your smartphone. Carefully study the developers' instructions, install only those firmware that are suitable for your device model.

Android software glitches

Software problems may also include the loss of sound on the phone. The reason may be as follows:

installation of programs from unreliable sources;
launching utilities that require ;
reset;
conflict of applications with the software shell;
independent device firmware.

First, you need to check the state of the process responsible for the operation of the smartphone’s sound devices.

To do this you need:

Open system settings.
Select the “Applications” tab from the list.
Select the "Application Manager" section.
Swipe the screen from right to left to open a list of running processes.
Find the audio service in the list of running applications and check its status. If necessary, you need to activate this process.

If for some reason the service does not turn on, then first do a factory reset. This is best done through the system settings menu, but you can also use the factory option - to do this, you need to go into Recovery mode and select the backup and reset option.

Hardware problems that cause the phone to lose sound

If none of these methods help, then the problem may be hardware. Such reasons include 15% of situations where the sound on the phone is lost. What to do in such situations? If you don’t know how to operate a soldering iron, or at least don’t know how to disassemble it, then you’ll have to hire a specialist. Most often, hardware failures occur due to:

voltage drop (short circuit);
moisture getting inside the device;
using the device in a dusty room;
impact or fall.

A small percentage of sound problems are caused by defective parts. During the first months of using the smartphone. It can be repaired for free if you haven’t dropped or flooded the gadget with water.

If you dropped your phone into water or accidentally spilled any liquid on it. You need to put your smartphone in a container with rice, and then immediately contact a service center. It is not recommended to turn on the device after drying. The technicians need to report the problem honestly so that they can begin repairs as quickly as possible.

Broken speaker

If the phone works through a plug-in headset or only on speakerphone, but you cannot hear the other person, then the problem most likely lies in the speaker. Advanced smartphones have several speakers installed - some provide sound while listening to music or speakerphone, while others make it possible to hear the interlocutor in a simple telephone conversation. Most often the main speaker fails. The reasons may be as follows:

Clogged movable membrane. At maximum volume you will be able to hear quiet sound. The sound almost never disappears completely. With this option, you can try cleaning the speaker yourself using a soft brush and a cotton swab. This advice is only suitable if you have access to this module, for example, the speaker is located openly under the removable cover of your smartphone.
Burnout or short circuit of the speaker coil. When the sound is played, a slight crackling sound will be heard - this is the main symptom of this malfunction. At the same time, you can hear the interlocutor or the media file being played. The only way to get rid of the problem is to replace the speaker along with the coil.
Broken coil winding - in this case, the sound of the speaker disappears completely. This can only be corrected by replacing the failed spare part.

If you have lost the sound of the speaker on your phone, you will most likely have to contact a technician. Before contacting a service center, test the operation of the speakers in different modes. Try to describe the operation of the speakers as accurately as possible. This will allow you to pinpoint the problem so that the technician does not have to look for it for a long time.

Audio jack problems

One of the stages of checking the operation of the speakers is connecting headphones. If the sound is heard in them, but not clearly, then you can try to cope with the problem on your own. All you have to do is blow out the connector and check the headset sound settings.

Sometimes the audio jack also affects the performance of the speakers. You may notice that there is no sound on your phone after using headphones. Most often, the phone detects it even when the headset is turned off; you can see the corresponding icon at the top of the screen. In this case, you can restore the functionality of the nodes to play sound yourself. To do this, do the following:

Before removing the headphones, hold down the volume up button;
connect and disconnect the headphones several times;
blow out the headset jack with compressed air;
If a little water gets into the connector and under the volume button, you need to partially disassemble the device and clean the contacts from oxide.

Sometimes small tendrils are clamped into the audio jack to hold the headset plug in place. You can use a thin tool to loosen them yourself or take the phone to a specialist for repair.

Audio amplification board malfunction

A malfunction of the sound card can be determined by the sound control button. It stops functioning. You can only remove debris that is stuck under the button yourself; to do this, you need to take a toothpick and carefully clean out the gap.

If the button does not work after cleaning, then the reason is the sound card. It fails for various reasons:

moisture getting inside the smartphone case;
mechanical impact (impact or fall);
manufacturing defects;
overloaded operating mode, leading to strong heating of the device (simultaneous operation of a large number of “heavy” applications).

This breakdown can only be fixed at a service center, where you can conduct a thorough diagnosis of the device and replace the board.

Cable wear

If your smartphone's volume control button or sound device is placed in an unusual place (for example, on the back cover), then the problem with the loss of sound may be in the cable that powers this module.

Nowadays you almost no longer find smartphones in the slider or clamshell form factor, but those who used phones a few years ago can remember such devices. Nevertheless, some manufacturers often use similar form factors with the Android operating system.

Due to regular movement, the contacts of the cable become frayed and functionality can only be restored by replacing the conductor with a new one. It is almost impossible to restore the cable at home.

You can determine that the problem is in the loop by one sign - the sound disappears and you cannot regulate it. Manufacturers promise to return to outdated form factors, so soon the problem of regularly replacing such conductors will be relevant again.

Thus, if you have lost sound on your device, you must first check the gadget’s settings, and only then contact the service center. If you have unsuccessfully flashed your device and are not sure that you can install the correct software yourself, you should also contact a specialist. In most cases, they will recommend that you install standard (custom) firmware.

What to do, if Phone speaker doesn't work? Speaker malfunction is considered one of the most common reasons for phone repair. It should be noted that most mobile phone models are equipped with two speakers. One of the speakers provides polyphony, the other - conversation. But the principle of checking these elements is almost the same.

The phone speaker does not work - reasons and diagnostics.

Repairing any mobile phone should begin with diagnostics. This is how you can determine the scheme of further actions. If you have problems with the speaker, you first need to inspect the phone and pay attention to the settings. Having understood the modes and settings, you can proceed to the outlets. Sometimes the reason is hidden in the clogging of these holes.

As for the hardware, for work and testing you will need a multimeter, a soldering iron, possibly a replacement speaker and a little confidence. First you need to carefully disassemble the mobile phone using special screwdrivers. Once you reach the speaker, you can get to work:

First of all, you should check the cable - for a number of models, for example, Nokia 8800, the speaker may not work due to the cable.
A caveat is that the cable needs to be ringed with a tester and visually inspected.
If the reason was hidden in the cable, then it needs to be replaced.
Next, you need to check the serviceability of the speaker, also using a multimeter.
A faulty speaker needs to be replaced.
And finally, there may be a break on the board - you need to ring all the tracks leading to the speaker.
A caveat is that a break on the board can be eliminated using jumpers.

Basically, that's all. A little advice - it is recommended to download the manual before starting work. The manual will help you disassemble your cell phone correctly. If you have any questions, you can always ask them here (in the comments)!

It may seem that the topic of this article does not deserve a detailed analysis. After all, what can you tell about a broken speaker or microphone? But in fact, this problem is not only relevant, such a breakdown is one of the most common reasons for contacting a service center. And Chinese devices are especially susceptible to it, whose manufacturers often skimp on such small but very important details. Let's figure out what's what.

Terminology

Microphone- a telephone element that converts the sound of a voice into an electrical signal. Often located at the bottom or front-bottom of the phone. From the outside it looks like a hole with a diameter of about 0.5 mm. Sometimes it can be covered with a mesh.

Noise canceling microphone- an auxiliary element, the main function of which is to assess the noise in the environment in order to subsequently adjust the sensitivity of the main microphone. The noise-canceling microphone can also pick up sound while recording video. Not used on all models. This microphone is located either in the rear-top part of the phone or on the upper end of the case.

Earpiece (or speaker) - a speaker that reproduces the voice of your interlocutor.

Polyphonic speaker (or buzzer) - a speaker used to play a ringtone, play the sound of audio and video files.

Do not you hear me- the most common reason for contacting a service center, characterizing any problems with sound (non-working microphone, speaker), or a melody that will not play.

You probably realized that the last term is trolling, but not without a grain of truth. Often, when a client turns to us for help, it is extremely difficult for him to explain what exactly happened to his phone. Don't believe me? Let's conduct an experiment. Select any of the sound related problems and try to explain to someone you know what is wrong with your phone. Most likely you won't succeed the first time. Many questions will follow, who can’t hear who. Does the sound disappear when you call or when they call you? When they call you, there is a melody, or there is none, etc. Therefore, it will be useful to understand the differences between breakdowns of components responsible for sound, what their causes are, and whether it is possible to fix them at home.

Microphone failure

With such malfunctions, the phone is not able to convert the sound of your voice into an electronic signal and, as a result, the interlocutor cannot hear you. To diagnose a microphone problem, you need to start the recorder and try to record any test sound. If you hear silence after playing the recording, there is a problem with the microphone. It should be noted that you should not use video recording for the test - the camera may use the noise reduction microphone, and not just the main microphone.

Why does the microphone stop working or work poorly:
1. Got into the microphone holeforeign object. As I already wrote, from the outside the microphone looks like a hole with a diameter of about 0.5 mm. If you have problems with sound and the interlocutor complains that you are either not heard at all, or are heard as if you are talking through a pillow, do not rush to panic. Perhaps a grain of sand or some other object has blocked the microphone passage. To check, it is enough to visually assess the cleanliness of the hole. To fix this problem, clean the microphone hole with a dry toothbrush. Under no circumstances use vodka, alcohol or any other solution, as they contain water and in addition to problems with the microphone, you may face consequences . Also, do not use needles, pins or toothpicks. With them you can pierce the microphone membrane or, if you are using a protected phone, pierce the semi-permeable membrane and deprive your phone of protection from moisture.

2. Noise reduction error. Above I talked about the noise canceling microphone and its functions. If your phone has such an element and during a conversation you accidentally cover it with your finger (or you have a habit of talking on the phone with it pressed to your shoulder), the phone thinks that you are in a very quiet room and significantly reduces the sensitivity of the main microphone. The interlocutor hears you either loudly or very quietly, depending on how tightly you cover the additional microphone. You can fix the problem by changing the way you talk on the phone or programmatically by turning off the auxiliary microphone in the menu (unfortunately, not all models have this option).

3. Microphone aiming.This problem is typical for Chinese copies of phones, but can also occur with branded devices. During a conversation, a high-frequency buzz appears, reminiscent of the reaction of a radio receiver when someone is talking on a mobile phone near it. There may be several reasons for this problem. The first is the low quality of the microphone itself, which can only be solved by replacing the component. But you can try to correct the second reason at home. We are talking about software calibration of the microphone. For all phones on MTK processors, you can do it manually from the engineering menu. I will tell you how this is done in one of the following articles.

4. Connected headset.One of the likely reasons for a non-working microphone may be a “stuck” headset connection sensor. Its immediate function is to switch sound from the phone to the headset when it is connected. In some cases, this sensor does not return to its original position when the headphones are disconnected and the phone continues to think that they are connected, turning the sound into “emptiness”. In this case, the display shows an indication of the connected headset. The causes of this malfunction may be moisture, mechanical damage to the headphone jack and hardware failure. The first two problems can only be fixed at a service center, and the last one can be resolved by reconnecting the headset. If after this the indication disappears and the phone works better, then you and your phone are lucky. By the way, if the headset sensor is stuck, not only the microphone does not work, but also the speaker, since its sound is also transferred to the “virtual headset”.

5. Microphone hardware malfunction. This is the case when you simply cannot do without a service center. If anyone is interested in the reasons for such breakdowns, write in the comments - I’ll tell you in more detail.

Speaker breakdowns

Why does the earpiece stop working or work poorly:

1. “Stuck” speaker mesh. The problem is characterized by a sharp deterioration in the sound in the speaker, but not its complete absence. Sometimes the sound from the back of the phone seems louder than the front. No matter how clean a person is, physiological discharge from the ears in the form of earwax is still present. Over time, it accumulates on the mesh and, mixed with dust, prevents the passage of sound. It is difficult to clean the mesh on your own, since manufacturers usually make them multi-layered - it will not be possible to remove dirt with a simple brush. But there is a temporary solution. I wouldn’t like to voice it here, since in the wrong hands this advice can do more harm than help, but I’ll still take the risk - you need to pierce the speaker mesh with a pin in several places to a depth of no more than 0.5 mm!!! You just need to go through the fibers of the mesh and in no case damage the speaker that is located behind it. If the sound improves, you're lucky; if it disappears altogether, it means you overdid it with the depth. Let me remind you that this is a temporary solution, and very soon you will either have to repeat the procedure or contact the service center.

2. “Car mechanic’s disease”. Any speaker is a membrane, a magnet and a coil. If your work involves metal processing, for example, you use a grinder or a sharpener, then metal shavings settle on the speaker membrane, preventing it from moving freely. The speaker takes on a “metallic” sound, becomes quieter, or stops working altogether. You can fix the problem by disassembling the phone and collecting metal shavings using a more powerful magnet. Doing this at home is problematic, and an already damaged membrane does not always return its original properties. The ideal solution to the problem is to replace the speaker with a subsequent recommendation not to use the phone in places where there is an excess of small metal particles in the air.

3. Connected headset. As I wrote above, a stuck headset connection sensor can disable the speaker in tandem with a non-working microphone.

4. Departed contact. Most speakers are connected to the board using spring contacts. If the phone was dropped and a gap formed in the upper part of the case, it is possible that the speaker contacts came loose. If such a breakdown occurs during a conversation, you cannot hear the interlocutor, but when you press on the upper part of the case, the sound appears. The problem should be fixed at a service center, but you can simply wrap the phone with tape - depending on whether you are ready to sacrifice the aesthetics of the device.

5. Protective film. An incorrectly applied protective film may block the speaker gap, thereby degrading its sound. I think I won’t have to tell you how to fix this problem.

6. Hardware failures. By analogy with the microphone, I propose to discuss this topic in the comments.

Polyphonic speaker failures

Buzzer breakdowns are in many ways similar to similar breakdowns of a conversational speaker. Parts can also fail due to metal shavings, and when dropped, their contacts move away from the board. Therefore, I will focus on failures that are unique to buzzers:

1. Mechanical damage to the inter-board cable. Many modern touch phones consist of two boards. One of them is the main one (maternal), and the second is auxiliary. The second board, as a rule, contains elements such as a microphone, buzzer, charging socket, and antenna. These boards are connected to each other using an inter-board cable. If it is damaged, the elements of the auxiliary board stop working. Such a breakdown is complex in nature and along with a non-working speaker you will receive a non-working charging socket and microphone.

2. Resonator defect— some of our clients complain not about the missing sound in the speakers, but about its poor quality. The fact is that to achieve high-quality and loud sound, it is not enough for the manufacturer to install a good speaker. It is necessary to create a special resonator - a box, reflected from the walls of which, the sound increases its volume and improves the purity of the sound. For a resonator, the integrity of the walls is very important. If they are deformed or damaged, the sound quality deteriorates sharply. Such breakdowns most often appear after poor-quality speaker replacement.

These are, perhaps, all the possible sound problems that I wanted to talk about in this article. If you have any questions, please ask them in the comments and I will definitely answer them.

18.03.2018 Frank 0 Comments

In iPhone 6, iPhone 5s, iPhone 5, iPhone 6s, iPhone se, iPhone 4s, iPhone 4, iPhone 7 plus, iPhone x, iPhone 7, iPhone 2g, iPhone 8, like others, there are 2 speakers: top and bottom and sometimes It happens that 1 speaker does not work, but the second one works.

Moreover, if one ear speaker (auditory) does not work, that is, the conversational one, but the speakerphone or external speaker (headphones) can work.

There are several reasons and most can usually be eliminated on your own without visiting specialized places.

If both speakers stop working at once, the situation becomes more complicated, but it can often be resolved independently.

It also happens that the speaker works quietly or poorly during a conversation, for example, it wheezes - we will also consider this situation below.

Sometimes you even need to get inside an iPhone 5, iPhone 6, iPhone 5s, iPhone 4, iPhone 4s, iPhone 7, iPhone 8, iPhone se, iPhone 5c, iPhone 6 plus and so on, but I hope such a future will bypass you.

The first reason why the speakers on the iPhone do not work is that it is simply turned off

Apple devices have an almost invisible button on the case and you can accidentally hit it - it mutes the sound (see picture above).

What to do? Just move the button to a different position (so that the red or yellow stripe does not appear on the side) and see what happens.

The sound can also be turned off through the settings - the built-in do not disturb function is running (Android also has this).

Then you won’t hear if someone calls you. This is a crescent moon icon - make it inactive (grey).

The second reason why the speakers on the iPhone do not work is the headphone jack.

If you often use headphones, the connector very often gets damaged, and the smartphone says headphones are connected (it may not write).

What to do. It can solve the problem for a short time by inserting and unplugging the headphone cable from the device several times.

You can also pick out the connector with a match, but if you continue to use headphones, you will soon have to replace the connector.

This is not only a problem with smartphones, but also happens often on TV. The metal plate in the connector simply does not move back to its original position and the device behaves as if headphones are connected.

The third reason why the speaker on an iPhone does not work is that the Bluetooth function is turned on

Apple smartphones can redirect sound to a Bluetooth accessory and the speakers will not work.

What to do? Just go to settings and turn off bluetooth - if sound appears, you can turn this feature off later.

If it does not appear, then the problem is not with something else, for example, with the software. Then just do a factory reset.

Reason four: iPhone fell and speakers don't work

If the phone fell into water, the speaker could easily be damaged. However, not only the speaker, but any element responsible for sound.

The same thing can happen if you fall into the snow and lie there for a while - the phone is warm, the snow melts and water gets into the device.

My wife once dropped me into the water (by the way, I also dropped it into the water while fishing, but I was carried away), so not only did the sound not work or it would not turn on, but the phone was not even repairable.

If someone flooded the iPhone with water after a fall, then the sooner you need to remove the battery (the smartphone partially works even when turned off) in order to avoid short circuits on the board.

Reason five: the speaker in the iPhone is poor or quiet

Very often, the sound quality in a smartphone leaves much to be desired. Wheezing usually occurs after a fall—the membrane is damaged.

What to do? Just change the speaker - they cannot be repaired, and they are not expensive (the better the quality, the more expensive).

The speaker operates quietly when dust accumulates in it or especially sweet liquid gets in it.

What to do? Usually cleaning resolves the issue. If there is dust, you can blow it out with a can of compressed air.

Also, the sound may become quieter if the resistance on the audio coil drops (depleted like a battery), then just replace it with a new one.

Other reasons why the iPhone speaker does not work

If the speaker is not working well, you don’t have to rush into repairs, because you can still communicate somehow, but when it doesn’t work at all, the reason may be hardware - a breakdown of the cable or the element of the motherboard responsible for audio.

As an option, try headphones, very often they work, and when you have free time, you can contact the service.

There is a pleasant moment for you here - the cable or speaker changes very quickly - about 20 -30 minutes.

So you won’t be without communication for a long time, although a lot depends on the service point itself - make sure that the service there is good, otherwise you’ll have to wait a week for the employee to find the appropriate required component.

The iPhone speaker does not work - to summarize

To summarize, we can say the following. The smartphone has a top and bottom speaker. Anyone can get hurt. The main reasons include:

flooding the smartphone (snow, rain, tea, beer, coffee, juice, water);
mechanical damage (falls: fell, dropped);
dust, small debris, connector
software failure;
volume is turned off;
manufacturing defects.

If you suspect a manufacturing defect, then immediately take it to Apple service, just make sure that there is no unlicensed software in the iPhone - if there is, you will not receive repairs under warranty.

Also, the warranty is void if the device is dropped, flooded or damaged - then you can contact any service - not necessarily Apple. Good luck.

My speakers work, if the battery is fully charged, only when it approaches 40%, not a single speaker produces sound, I can’t be heard, I can’t hear and the call doesn’t go through (((