The indicator on the case will light up purple. It will go out when the case is 100% charged. In this case, it must be disconnected from the power source. And it is ready to further charge the i12 TWS headphones. While the case is charging, the earbuds may be inside. At the same time, both the power bank itself and the headphones will be recharged. Their color display will tell you when the charging cable can be disconnected.
Method 1: Checking the battery charge
Most often, the reason for the occurrence of the failure in question is elementary - the user did not keep track of the battery capacity level and the headphones simply died. The solution is also simple - connect the device to a charger and check how it behaves. If the indication shows that the gadget is charging, then leave it for a while (on average 2-3 hours), then disconnect it and try to turn it on - now everything should work out. Owners of TWS headphones, in addition to themselves, should also check the case.
Do not rush to worry if they do not charge - it is possible that the cause of the problem in this case is the power supply itself. Try connecting another charger (most Bluetooth audio devices have a standard one, in the form of a block and a detachable microUSB/Type-C-USB cable) and see how the gadget behaves with it. But when a problem still occurs with a known-good power supply, then it’s worth checking the contacts on the headphones themselves and in the case - perhaps they are dirty or corroded.
Charge your AirPods case with a different cable
This was exactly my case. It looks like a normal original Lightning cable, but in fact it turned out to be non-working. Where did he get on my head?
This actually happens quite often. Apple makes very flimsy cables. They seem to just self-destruct after a certain amount of time.
I have already recommended the Lightning cable from UGREEN several times in other articles. The quality is great, official chip and no complaints about performance after three years. Chinese brands have already learned to do things no worse than Apple.
Ways to charge headsets
Wireless headphones are distinguished by their autonomy, which is provided by the battery. But it needs to be charged periodically. Main charging methods:
- using a case;
- via a special cable;
- wireless charger;
- via smartphone.
The best way for many models is a special box in which the headphones are placed for safe storage and charging. Apple was the first to use cases for its AirPods, but now many manufacturers sell similar devices.
The possibility of wireless charging through the case was a great idea, as it allows you to increase autonomy and extend the life of the device outside the home. You can simply put the headphones in the case: they will quickly recharge for a couple of hours of use. And the box itself will be in your pocket at this time.
Precautions and useful tips
We've figured out how to charge the most popular models of headphones and headsets. And now a few recommendations for use, adhering to which we will significantly extend the life of the device:
- Before using the device, carefully read the user manual. Using the “poke method”, the headset can easily be damaged by simply pressing a button or connecting it to the wrong charger.
- Before first use, fully charge the headset and case, if any.
- We do not use network adapters of dubious origin and unknown manufacturer. Even if the characteristics we need are indicated on the body of such a memory device, it is not at all a fact that the reality corresponds to what is written. And the reliability of such power supplies leaves much to be desired.
- We try not to use the device while it is charging. Having gotten used to a wireless connection, we may forget that we are “tied” to the charger and simply rip the socket out of the headset body.
- Do not leave headphones in the sun or near heating devices. Elevated temperatures significantly reduce battery life and negatively affect sound-emitting capsules.
- We do not abuse excessive volume. The headset is not intended for listening to loud music. By turning the volume up to 100%, we significantly reduce the life of the sound-emitting capsules, and they will very quickly wheeze or even burn out.
- We do not store the headset and case for a long time with discharged batteries. Charge a completely dead battery as soon as possible.
JBL Wireless Headset Package Contents
When purchasing headphones from JBL, the package may vary slightly depending on the type. The packaging of vacuum headphones usually includes the device itself. Its wires connect two plastic housings.
JBL Wireless Headphones
One contains a board with a device for adjusting the sound, as well as some other functions. The second contains a hidden battery for charging. In the package you can also find a cable with USB at one end and Micro USB at the other.
JBL headphone charging cable
This set is complemented by instructions for use. The presence of the Russian language in it depends on the configuration version (global, local). In it you can find the main functions of the JBL wireless headset, as well as its technical characteristics.
Troubleshooting
If the audio device does not see the headphones, you need to check if they are charged. The wireless headset runs on an installed battery; certain models work without charging for up to 50 hours, some only 4-5 hours.
Disconnect the headphones; as a rule, when turned on, the indicator on the device body lights up. Recharge your device. We must not forget that certain models require only 1 hour to fully recharge, while some need to be recharged for more than 5 hours.
If the headset is connected to the charger and the indicator lights up, then everything is working normally, you just need to wait until the battery is fully charged.
If after connecting the headset to the charger the indicator does not turn on for 2-3 minutes, the device is probably broken.
Make sure that the outlet where the charger is connected is working. If the headphones are connected to the laptop via a USB cable, you need to make sure that the USB port is working normally. Not all ports transmit the required electrical voltage. Most often, USB ports that can recharge external equipment are marked with a lightning bolt symbol. If there is no signal when connecting to one of the ports, connect the wire to another port or to another laptop.
Is it possible to completely discharge the battery?
Technically, there is nothing wrong with completely discharging a Li-Ion battery. If you don't do this constantly, everything will work fine and the battery will last you a long time. However, if you are going to stop using a smartphone or other device with a built-in battery for some time, it is better to charge it to 50 percent. This will be the most gentle mode for the battery. By the way, Apple also warns about this on its website.
In any case, although batteries have their own characteristics and limitations, it is quite difficult to ruin them before you want to change the device. And replacing the battery is not that expensive. Even those few thousand rubles that they will take from a branded service become a very small amount if they are spread over three years.
One earphone quickly discharges and turns off
There is another very popular problem that I myself encountered on the original AirPods and on the Chinese i30 headphones. Everything seems to be charging and working as it should, but one of the headphones discharges very quickly and turns itself off. This is my right earpiece. It works for just a few minutes and turns itself off. It turns out that one earphone sits down faster than the other. It works longer on AirPods, but the right earbud drains much faster than the left. It is impossible to use such headphones.
This is a hardware problem. That is, settings, resetting parameters and other similar methods cannot fix it. Need repairs, replacement of a non-working earphone (right or left), or purchase of new headphones. If there is a warranty, be sure to contact the service center or seller. They must repair them, replace them, return the money.
If the earphone is dismountable, then you can find the battery yourself, disassemble the headphones and replace it (resolder it). But there are a lot of nuances here. Can you do it yourself, can you find a battery, etc.
In most cases this doesn't make any sense. It's easier to buy new headphones. Just like with my first generation AirPods. You can only change the right earbud, since the left one still seems to hold a charge. But where is the guarantee that the left earphone will not break in a month, because they are already four years old. But the battery in AirPods cannot be replaced; they are non-separable, if I understand correctly.
Possible problems
First, let's discuss the most likely problems that you can solve yourself.
The Bluetooth speaker output of the micro-earphone is clogged with earwax
In this case, the sound fades or disappears on one side. Contamination will be visible. Even if this is not the reason, cleaning your headphones is never a bad idea:
Let's prepare hydrogen peroxide or chlorhexidine, a needle, and cotton swabs. We carefully remove dirt from the sound hole of the monolithic body with a needle. Wipe with a cotton swab and hydrogen peroxide. We soak removable mesh and lids, ear pads of earbuds or earplugs and wash them with peroxide. In full-size or on-ear headphones, we change the foam filter. Monolithic in-ear ears can be soaked with the hole down, securely fixing the position with clips. So that liquid does not get inside. To treat internal surfaces, boards, contacts, you can use isopropyl or regular ethyl alcohol
Contact with other liquids will cause damage. Before use, you need to dry the device on a cotton pad.
Incorrect battery placement
If battery-powered wireless headphones do not turn on, you should check the polarity of the battery. For ears measuring 6 and 9 mm, the negative terminal of the battery will be on the outside and the positive terminal on the inside. But for the 11 mm device it’s the other way around. You can check the instructions.
The battery can be recharged for a short time. In some devices, indicators show the charge level, and a warning signal sounds before the battery is empty. It is worth checking the headphone charger, it may not be working. When turning on, you can also focus on the indication of headphones and charger.
Incorrect placement of the Bluetooth headset on the body
Some devices turn the headset on and off automatically
Therefore, for work it is important to fix the elements where they are intended to be. Usually the induction arc is worn around the neck, less often on the arm.
The instructions or the Internet will help here.
Incorrect connection of the bluetooth headset
If you have already made sure that the desired device is activated in the source list, but the wireless headphones do not turn on, then you should restart both devices and pair them again. During this time, try to keep the devices nearby until you see that the connection is complete and the headphone icon appears.
Also, in the list of connected devices on your phone, you should check in the settings of our headphones whether the “multimedia sound” option is enabled. This allows you to play all the sounds of your smartphone.
If you know for sure that both devices are working, charged and compatible, then you can only think about some software errors. In this case, there are 3 options left to get rid of the software error:
- Reset your smartphone to factory settings. Don't forget to save a backup copy of the necessary files, photos, videos, because everything will be deleted.
- It’s better to reflash your phone at a service center, but you can do it yourself if you know what you’re talking about.
- Install a special application where you can easily control audio devices, for example, SoundAbout.
Setting incorrect phone settings
Sometimes in the smartphone settings the sound source is set by default through its own speaker. Then you need to enable audio transmission through headphones:
- settings;
- sound;
- sound source;
- select a device and activate it.
The names of the sections may differ in different phones, look for a logical path to the desired parameter.
Also, special operating modes of a smartphone or tablet can block the Bluetooth signal - energy-saving, safe, in flight. Wireless headphones do not turn on because they are not paired with the source.
Incorrect placement of the earpiece in the ear
If you are using magnetic headphones, it is very important to place them on the eardrum. If this is not done, then there will be no sound, since such devices transmit not sound, but vibration directly to the membrane
Yes, and other types of headphones may sound worse and quieter if they are installed incorrectly or do not match in size.
How does a Li-Ion battery work?
The batteries used in modern smartphones have many advantages over their predecessors, although they have their own characteristics. Among the advantages are their high performance, low weight, a fairly long period of use and the absence of a “memory effect” (there are exceptions, but rarely anyone encounters them).
However, after prolonged use, the battery sometimes starts to drain faster than we want it to. As a rule, if the device is used for several years, this is the wear and tear of the battery. In this case, it is better to replace it. Also, it is worth replacing the battery if it stops working, but you know for sure that the problem is there. For example, you charged it several times a day, overheated it, or it became swollen.
The charging case is a real godsend for headphones and not only for AirPods.
There is another reason why the battery may begin to lose ground. Even Apple itself says on its website that the battery needs to be calibrated periodically. True, such information is only available for laptops, but this also applies to batteries of other equipment. The relevant information is easy to find, including on thematic portals and forums.
Charging AirPods
If you have AirPods or AirPods Pro, place them in the charging case and close the cover. Charge your AirPods and case for at least 15 minutes using the cable that came with your AirPods.
If you have AirPods Max, charge them for at least 5 minutes using the included cable. When you're not using AirPods Max, store them in the Smart Case, where they'll go into ultra-low power mode to save battery power.
If you have a wireless charging case for your AirPods or AirPods Pro and are using a Qi charger, place the case with the status light facing up. The status indicator should light up for a few seconds and go out while charging. If it does not light up, change the position of the case. If the case still won't charge, try using the charging cable that came with the case.
How to connect i12 TWS to mobile phone
To connect the i12 TWS wireless headphones to the phone, we must take them out of the case. This model perfectly “understands” what space it is in. As soon as you pick up the headset, it will automatically go into pairing mode. And on the case you will see a flashing indicator.
Take your smartphone and open its settings:
- Select the Bluetooth section here to set up the connection;
- Find the headphone model in the list by name - i12 TWS;
- Select it and confirm the connection.
Now you can control your music using a button on the body of your wireless earbuds. Click on it once and the player will start playing. If you press again, playback will stop. The Chinese device even allows you to call Siri, a virtual assistant. To do this, you need to press the button and hold it for about 2-3 seconds. Use any charged earphone.
And also adjust the volume without manipulating your smartphone. By pressing the left i12 quickly 2 times on the body, the sound volume will decrease. If you press the touchpad on the right earbud 2 times, the volume will increase.
This way you don't have to take your phone out of your pocket to adjust the volume. Change it directly on the headphones.
This may be useful: How to distinguish original Airpods from fake ones.
Connecting wires without a soldering iron
If the user wants to do without a soldering iron to repair torn headphones, he can use solder paste, solder, or make a reliable twist.
Solder
You can fasten wires with solder without the help of a soldering iron. For this you need a small metal container. You need to put a small amount of solder in it and also add rosin. Now you should light the stove, place the dishes on it and melt its contents.
Next, you need to lower wires of the same color one by one into the solder and run them along a wooden block so that the substance is distributed evenly. You can perform the same steps and remove excess solder using a simple rag. Next, the wires are connected together, after which you need to wait until the material hardens. After this, the exposed sections of the wire must be insulated using heat shrink tubing or electrical tape.
In the same way, you can solder a wire if it breaks at the plug or near the earphone. In this case, you need to pour crushed solder and a little rosin onto a flat surface (contacts), and then heat it so that the substance melts. After this, the material is evenly distributed with any convenient object and the prepared wire with applied solder is applied to it.
Another convenient way to solder two wires together without a soldering iron is to use foil. The action diagram is as follows. It is necessary to remove the top braid from the cable, and then remove the insulation from the contacts (usually varnish with thread). Next, you need to cut strips from the foil along the width of the exposed wires. They are used to make grooves into which contacts twisted in pairs are placed separately. Solder and rosin are poured on top of them and distributed evenly along the surface. Now you need to wrap the foil tightly around the wire so that there are no gaps, and heat until the solder melts
Next, the foil is removed, and the wires are tightly compressed with pliers, but this must be done carefully so as not to damage them. Excess solder can be easily removed with fine sandpaper
Solder paste
Solder paste is more often used than regular solder to repair broken wires without a soldering iron. This process is faster and easier than working with solder and rosin.
To repair headphone wires, you need to coat the exposed contacts with paste, connect them together and heat them over an open fire or in any other way. With this connection, soldering occurs deep between the wires, so its strength is significantly higher than when using solid solder.
Twist
Twisting the cable is the simplest solution. You need to take two identical wires with a length of 2 to 4 cm, connect them together and braid them, after which you need to put a heat-shrinkable tube on top or wrap electrical tape. The connection should be very strong, but do not tug the cable too much during operation. If everything is done correctly, the headphones will last for a long time.
