One wireless earphone does not work

June 30, 2020

Author: Maxim

Wireless TWS headphones are very convenient for everyday use, but unlike models with a special headband, they may have problems.

It happens that one earphone simply stops working, while the second one functions perfectly and the music plays perfectly. There are several reasons for this problem.

From the previous material you already learned how to charge wireless headphones. Today we will talk about such a problem as one earphone not working, it can be left or right, it makes no difference.

Interesting! Some models only work when both earbuds are inserted into the ear. First of all, test this by inserting both the left and right into your ears.

Why does only one wireless earphone work?

I have identified 4 main reasons:

One earphone is turned off. I probably would not have put this reason first if I had not encountered this myself several times. I have a high-quality copy of AirPods, and one of the headphones periodically falls off. As it turned out, it was simply turned off and did not turn on automatically when removed from the case. And the solution in this case is the simplest - turn on the earphone (right or left) by holding the button on it for 5 seconds.
Headphones are out of sync. This is the most popular problem. The headphones lose connection with each other, resulting in only one earphone playing. Out of sync is very common with various wireless TWS headphones. Sometimes this happens due to an incorrect connection to your phone or other device, or when you only use one earbud. This problem is solved by resetting the settings and resynchronizing between the two headphones.
Charging problems. It happens that one of the headphones is simply discharged. Well, everything seems to be simple here, you need to charge the case, put the earphone in there and wait. Anyone can guess and do it. But there is one point - perhaps the earphone in the case is not charging. And if it doesn't charge, it won't work.
One earphone is broken. This also happens, and quite often. For example, a headphone stops working after being dropped or exposed to moisture (fell in a sink, caught in the rain). Even if nothing like this happened, the headphone, like any other device, can simply fail. I also noticed that the battery in cheap Chinese headphones wears out very quickly. But then, as a rule, they just work for a few minutes and stop playing. How to fix it? Either take them to a service center or buy new ones.

Let's look at each case in more detail.

Most of the solutions have been tested by me from my own experience. I took some solutions from comments to other similar articles on this site. If you have something to share, please do so in the comments, I will be grateful!

Before applying the different solutions that I will discuss below, try simply placing the headphones in the case for a few minutes. Make sure the case is charged. Turn Bluetooth off and on on your phone.

We try to turn on the right or left earphone

It's very easy to do. There is a button on the right and left earbuds. It can be either mechanical or sensory. In this case it doesn't matter. To turn the earphone on or off, you need to press this button and hold it for 3-5 seconds. You can usually find out about switching on/off by the indicator on the headphone, or by the Power On/Power Off sound signal.

We take the non-working earphone in our hand, press the button on it and hold it for about 5 seconds.

Perhaps the earphone will work. If it doesn't work the first time, try again. You can also perform 2-3 presses (touches) on a button or sensor.

For this reason, by the way, very often one Xiaomi Redmi AirDots earphone does not work. If the solution I showed above did not help, try the following: put the earphone in the case with the button pressed. Just hold down the button and place the earbuds in the charging case.

If the earphone does not turn on, see other solutions.

Reset and resync

In most cases, it is precisely because the headphones are not synchronized with each other that only one ear in the headphones works. I’ll explain in a nutshell why this happens. Almost all TWS earphones work according to the following principle: the second earphone is connected to the main one (it is installed by the manufacturer, or selected by the user). After which we connect the main earphone to the phone, laptop, etc. In most models, both the left and the right ear can be the main ear. They can be used as a headset when only one ear is working. When the headphones cannot connect to each other for some reason, only one works. This can be fixed by resetting the settings and resynchronizing.

Universal instructions:

We open the Bluetooth settings on the device to which our headphones are connected and delete them (on the iPhone “Forget this device”). Delete them on all devices to which they were connected.
Make sure the headphones are charged. If you are not sure about this, then place them in the charging box for 5 minutes.
Take the headphones out of the case.
Simultaneously press the button on each earphone for 5 seconds.
Press the buttons again at the same time and hold them for 20-50 seconds. At this point, the settings should be reset to factory settings.

You can navigate by the indicators. True, they may behave differently on different models.
Release the buttons and put the headphones in the case.
Take the headphones out of the case and wait 10 seconds. At this moment they should synchronize with each other.
Go to the Bluetooth settings on your phone or other device and connect your headphones.
Check whether both headphones are playing or only one is still working.

A few points:

Sometimes, to reset the settings, you need to put the headphones in the case and hold down the button on the case for 20-30 seconds.
On some models, reset occurs only in the case. This means that you need to hold down the button on each earphone while they are in the case.
It doesn't always work the first time. Try repeating several times.
If the indicator on one of the headphones does not react at all to pressing or holding a button, then most likely it is broken or discharged.

Assigning the main earphone

In some cases, you need to assign the main earphone. After which the headphones will be connected to each other and you can connect them. Yuri shared this solution in the comments. I've heard about him several times too.

Take both headphones out of the case.
Make two short, quick presses on the button on the right earbud. Or two quick taps on the touch button.
Wait for the headphones to sync and connect them to the device.

If it doesn’t help, try setting the left earphone as the main one.

Charging problems

A discharged earphone will not work, that's understandable. Moreover, the indicator does not light up and it does not beep. What problems might there be with charging and how to fix them:

Place the headphones in the case and connect the case to the charger. Pay attention to the indicator on the case and on the headphones themselves. It’s difficult for me to give specific recommendations here, since there are a lot of models, and the behavior of indicators can be different.
Check the contacts on the earphone itself and on the case. It happens that the contact gets stuck, does not reach and the earphone does not charge. Perhaps something got in there. If the headphones are new, then the contacts may be sealed with film.

Wipe the contacts on the earbud itself and gently clean the contacts in the charging case using a toothpick or ear swab.
The battery has failed. Here you can either replace it at a service center (if possible) or buy new headphones. I have a problem with the battery on my AirPods (it works, but not for long), and some Chinese headphones have the same problem. They worked for about a year, after which the right earphone works for a few minutes and turns off.

Separate instructions: the right or left earphone and the headphone case are not charging.

The wireless earphone is broken: what to do?

If not a single solution helped and you were unable to fix the earphone, you can conclude that it was simply broken. Hardware failure. This happens not only with cheap Chinese ones, but also with expensive models from popular manufacturers. The same AirPods, JBL, Samsung Galaxy Buds also break down and stop working.

In this case, I recommend doing the following:

Write in the comments the model of the headphones, what happened to them (try to describe in detail), and what you have already tried to do. I will try to help you and suggest some solution.
If you bought the headphones in a good store, there is a receipt and a guarantee, then you can try to take the headphones to a service center for diagnostics and repair. Contact the store, or find a service center in your city and call them.
Read the article carefully again. Perhaps you missed something or did something wrong. Try to find information on the Internet specifically about your headphones (search by manufacturer and model name).

I will be very glad to see your feedback in the comments. If you have any working solution, or interesting information on this topic, please share. Best wishes!

Windows 10

– all instructions for setting up the Internet and solving problems

Question answer

Before purchasing a device, you need to familiarize yourself with useful information.

Sound comes from only one earphone

There are 2 possible problems here:

In the phone settings, the stereo slider is set to the extreme left or right position. Move to the center.
You will have to synchronize between the headphones. The procedure is different for each model, so you'll need to look for clues in your toolbox for this technique.

Is it possible to connect AirPods to Android?

Despite the fact that the headset is developed using Apple technologies, anyone can use it. The main condition is the presence of a Bluetooth module in the smartphone, since pairing occurs via wireless technology.

What is the difference between the algorithm for connecting headphones with an NFC chip?

NFC is a wireless technology for transferring data between two devices. This connection is different in that it does not require a physical connection. It is enough to bring the equipment closer to a distance of 2-10 centimeters so that the chips can read the information.

The correct connection algorithm is very simple:

You need to go to your phone settings and enable the NFC feature. Enabling the option depends on the Android version; on iOS NSF is always active. It is best to read the instructions in advance.
Turn on your headset.
Unlock your smartphone and connect the back panel to the N mark on the outer shell of the headphones. A message will then appear on your phone screen asking you to confirm the connection. You need to click "Yes".

Is it possible to connect several sets at the same time?

you can do this, but you cannot listen to music on both headphones at the same time. When playing sounds, you will need to select one. This cannot be done because the radio module cannot be divided into two streams in any way.

Why doesn't one wireless earphone work?

There are several reasons that can cause this problem, first of all you need to find out what happened.

1. Just not charged, poor contact in the charging case.

2. Contamination of the liner.

3. Flooding with water.

4. Low battery.

5. Incorrect settings.

6. The device simply does not support this type of connection, this often happens with smartphones, but everything works fine on a computer.

7. Desync has occurred.

8. It is set to work only when the earbud is in the ear.

Important! If you do not have TWS headphones, but, for example, on-ear headphones connected by a headband, then most likely the problem is mechanical in nature. Therefore, most often it is best to contact a specialist who can disassemble your gadget and tell you exactly what the problem is.

Why doesn't one wireless earphone work?

There are several reasons why one of the headphones may not work. Among them:

The speaker is clogged with sulfur.
The element required for power supply is not positioned correctly.
The headset is not positioned correctly.
Errors during the connection process.
The settings on the audio source are incorrect.
The Bluetooth capsule is not positioned correctly.

All breakdowns are identified and corrected on an individual basis.

Phone pairing problems

Sometimes one earphone does not work due to interference or sudden problems while pairing with the phone. The fix for this problem is simple: you need to turn off Bluetooth on your phone, then turn it back on and pair again. If this method does not help, it is recommended to remove the Bluetooth headset from the list of devices and connect to it again.

First of all

Very often, the reason that it is not possible to connect wireless headphones to the phone is the carelessness of the user himself.

The instructions for headphones almost always contain instructions, where it is not only written, but also clearly shown in pictures how to connect and what to press. Passwords will also be indicated there, if any are needed when pairing devices.

In this article we cannot give clear and precise instructions for your case, because... There are incredibly many models of headphones and phones. You will read our article and apply the findings directly to your case. All interfaces and actions are similar on any device and differ only in names and appearance.

How to properly solder wires

Having found the problem area, we cut the wire a little below it, clear the break point and the entire wire from the braid. Then we heat up the soldering iron and carefully solder both exposed wires. Especially for those users who are doing such repairs for the first time, we provide a detailed algorithm for all actions with a soldering iron.

After stripping all ends of the wire, you need to properly tin them with solder.

using a soldering iron. You will need:

planed wooden board (an old kitchen cutting board will do);
organic flux
, for example, brand F-99, which can be bought at any store that sells spare parts for radio amateurs;
ready-made solder
in the form of tin wire with special additives in the hollow inner part;
soldering iron heated to the optimum temperature.

We do all successive operations carefully and without fuss or haste; haste can only do harm here.

To apply flux to a wire, place it on a board, press down the applied flux with a soldering iron for a few seconds, then make movements as if we were removing varnish from the surface of the wire. The result is the following picture:

Then on 1, 2 and 3 (in some wires there are only two of them) we put small pieces of heat-shrinkable tubing

, which will serve as an insulator between them. You need to solder the wires, push the tubes into place where they are soldered, and use a lighter to crimp them.

We slide the heat-shrinkable tube over and crimp it using similar actions as before - we get an aesthetically attractive connection that guarantees reliable insulation of the connected wires.

Basic rules of use

When using a wireless headset, you must follow several recommendations. They will help to significantly increase service life and maintain high sound quality.

To make a correct connection, you must adhere to all rules and recommendations. They are indicated by the manufacturer in the instructions for use.
The lack of a wired connection is the main advantage of this headset. To avoid interruptions, lack of sound or extraneous noise during use, it is recommended to keep both devices close to each other. On the street it can be about 50 meters. When in an enclosed space - no more than 20 meters.
The inner surface of the earphone must be regularly cleaned of accumulated dirt. Lint or debris that accumulates on the retina significantly reduces the quality of incoming sound. In addition, dirt can get inside the device, which will lead to rapid failure. A soft brush or cotton swab is suitable for removing dirt.
After use, the headset should be stored in a special case, which is included in the kit. Such cases are equipped with a built-in battery that recharges the headphones. Storage in a case will also protect against the sudden loss of one of the devices.

The earphone is dirty or wet

Sometimes dirt and small debris can block the sound coming out. It is necessary to check the non-working earphone and clean it with a dry cloth if it is dirty on the outside. To check the cleanliness of the headphones inside, you need to:

Remove the sulfur filter using a needle. Removing the filter must be done as carefully as possible, otherwise the speaker may be damaged.
Carefully clean the inside of the earphone without going too deep.
Install a new filter.

When the earphone comes into contact with water, use a microfiber cloth that will absorb all the liquid. If the earphone still does not work after this, the water may have damaged the speaker. This can only be corrected at a service center.

Sources

https://WiFiGid.ru/reshenie-problem-i-oshibok/ne-rabotaet-odin-besprovodnoj-naushnik
https://fans-android.com/ne-rabotaet-odin-besprovodnoj-naushnik/
https://divizion39.ru/novosti/kak-proizvesti-sbros-nastroek-besprovodnyh-bluetooth-naushnikov-dlja-ih-sinhronizatsii-mezhdu-soboj/
https://help-wifi.com/bluetooth/ne-rabotaet-odin-besprovodnoj-naushnik-perestal-igrat-chto-delat/
https://AndroidLime.ru/one-wireless-earbud-does-not-work

Repair of wired headphones with microphone CHP 510

Wired behind-the-ear stereo headphones usually have frayed wires in the cord where they plug into the phone.

My friend brought me the headphones you see in the photo with this problem. He repaired the headphones himself, soldering the broken wires, but they broke again. This repair method only results in short-term operation of the headphones.

A good repair requires cutting the frayed cable, disassembling the headset, and soldering the wires directly to the audio transmitter.

You should begin disassembling the headset by removing the ear pads. To do this, you need to pull it with your fingers and use the blade of a flat-head screwdriver to pull it out of the phone socket.

After removing the auricle, four clips became visible. Sometimes the phone cover is secured with screws.

To remove the cover, use a flathead screwdriver to push the latches toward the center one at a time and push them away.

After cutting out the worn part of the string, I discovered that it had been permanently fused into an elastic tube that protected it from being sharply bent. It was necessary to remove the wire from the pipe using a drill bit. After cleaning, the tube was placed on the cord.

Then, very carefully so as not to damage the wires, cut the insulation with a knife. The soldering iron doesn't help here, as the conductors practically melt into the insulation and could not be moved from the wires.

After removing the PVC insulation, the ends of the wire must be burned with a soldering iron and flux. The photo shows the wire prepared for soldering in the headset.

To avoid confusion with the markings, bad wires were not allowed in at first, but when soldering new wires, the old wire was empty, and wires of the same color were soldered in its place.

The wires going to the open headphone speaker were soldered directly to its pins. The wires going to the second earphone and microphone were connected to each other by soldering. For insulation, paper adhesive tape was used, covered with an existing layer of glue.

The photo shows the CHP 510 headphones that I repaired and hopefully they will last for many more years.