DIY bluetooth keyboard repair

Is your TV, radio, mobile phone or kettle broken? And you want to create a new topic about this in this forum?

First of all, think about this: imagine that your father / son / brother has an appendicitis pain and you know from the symptoms that it is just appendicitis, but there is no experience of cutting it out, as well as the tool. And you turn on your computer, access the Internet on a medical site with the question: "Help to cut out appendicitis." Do you understand the absurdity of the whole situation? Even if they answer you, it is worth considering factors such as the patient's diabetes, allergies to anesthesia and other medical nuances. I think no one does this in real life and will risk trusting the life of their loved ones with advice from the Internet.

The same is in the repair of radio equipment, although of course these are all the material benefits of modern civilization and in case of unsuccessful repairs, you can always buy a new LCD TV, cell phone, iPAD or computer. And for the repair of such equipment, at least it is necessary to have the appropriate measuring (oscilloscope, multimeter, generator, etc.) and soldering equipment (hairdryer, SMD-hot tweezers, etc.), a schematic diagram, not to mention the necessary knowledge and repair experience.

Let's consider a situation if you are a beginner / advanced radio amateur soldering all sorts of electronic gizmos and having some of the necessary tools. You create an appropriate thread on the repair forum with a short description of “patient symptoms”, ie. for example “Samsung LE40R81B TV does not turn on”. So what? Yes, there can be a lot of reasons for not switching on - from malfunctions in the power system, problems with the processor or flashing firmware in the EEPROM memory.
More advanced users can find the blackened element on the board and attach a photo to the post. However, keep in mind that you are replacing this radio element with the same one - it is not yet a fact that your equipment will work. As a rule, something caused the combustion of this element and it could “pull” a couple of other elements along with it, not to mention the fact that it is quite difficult for a non-professional to find a burned-out m / s. Plus, in modern equipment, SMD radio elements are almost universally used, soldering which with an ESPN-40 soldering iron or a Chinese 60-Watt soldering iron you risk overheating the board, peeling tracks, etc. The subsequent restoration of which will be very, very problematic.

Video (click to play).

The purpose of this post is not any PR of repair shops, but I want to convey to you that sometimes self-repair can be more expensive than taking it to a professional workshop. Although, of course, this is your money and what is better or more risky is up to you.

If you nevertheless decide that you are able to independently repair the radio equipment, then when creating a post, be sure to indicate the full name of the device, modification, year of manufacture, country of origin and other detailed information. If there is a diagram, then attach it to the post or give a link to the source. Write down how long the symptoms have been manifesting, whether there were surges in the supply voltage network, whether there was a repair before that, what was done, what was checked, voltage measurements, oscillograms, etc. From a photo of a motherboard, as a rule, there is little sense, from a photo of a motherboard taken on a mobile phone there is no sense at all. Telepaths live in other forums.
Before creating a post, be sure to use the search on the forum and on the Internet. Read the relevant topics in the subsections, perhaps your problem is typical and has already been discussed. Be sure to read the article Repair strategy

The format of your post should be as follows:

Topics with the title “Help fix the Sony TV” with the content “broken” and a couple of blurred photos of the unscrewed back cover, taken with the 7th iPhone, at night, with a resolution of 8000x6000 pixels are immediately deleted. The more information you post about the breakdown, the more chances you will get a competent answer. Understand that the forum is a system of gratuitous mutual assistance in solving problems and if you are dismissive of writing your post and do not follow the above tips, then the answers to it will be appropriate, if anyone wants to answer at all. Also note that no one should answer instantly or within a day, say, no need to write after 2 hours “That no one can help”, etc. In this case, the topic will be deleted immediately.
You should make every effort to find a breakdown on your own before you get stumped and decide to go to the forum. If you outline the entire process of finding a breakdown in your topic, then the chance of getting help from a highly qualified specialist will be very great.

If you decide to take your broken equipment to the nearest workshop, but do not know where, then perhaps our online cartographic service will help you: workshops on the map (on the left, press all buttons except “Workshops”). You can leave and view user reviews for workshops.

For repairmen and workshops: you can add your services to the map. Find your object on the map from the satellite and click on it with the left mouse button. In the field “Object type:” do not forget to change to “Equipment repair”. Adding is absolutely free! All objects are checked and moderated. A discussion of the service is here.

if there is no donor where to cut the track .. I take the usual foil! (you can even from a pack of cigarettes - just wipe it with alcohol or acetone to remove the varnish) I stick it on the tape, and then with the tape to break the tracks (so that there is a part of the foil on top of the normal track ... and it's done!)))

+ Valentina Romanchenko Everything is even easier. You just take conductive glue, paint the tracks and that's it.

sometimes when you press a key, it seems to stick and presses many times, for example, when typing, you press a letter and it “sticks” and prints “nnnnnnnnnnnn” many times, but physically it does not stick, it feels like it’s on bluetooth transmits a certain key many times, how to fix this?

+ Denis Qwerty try to disassemble and clean.

I wanted to clean the keyboard, I didn't make it out completely, I just blew and all the garbage flew out. I started to put it back together and it doesn't work. What should I do?

Pavel Kuruzov contacts do not match

In a set consisting of a keyboard and a mouse, the keyboard stopped working, the green LED on the keyboard is on, tell me what you can do.

+ Dmitry Suvorov The keyboard stopped working completely or some keys work?

What to do? Disassembled, but the film is protected by a metal plate, how to remove this plate? Help me please

+ Elay [] Play Are you talking about a laptop?

I would also like to know why the tracks are burning. Everything worked for me in the evening, and in the morning some buttons stopped working. Disassembled some of the tracks are slightly dark. I didn't spill anything on the keyboard.

+ Djavded09 I honestly don't know. There is a possibility that a factory defect, perhaps in these places there is a thin layer of conductor or something with the controller (board in the keyboard)

sabes reparar los teclados de apple imac

The numbers don't work for me. What should be done for this ?!

Why are only some letters on my laptop not working?

In this case, this is exactly how it was. Some keys were not pressed. The tracks are burnt out.

hi can you help? poured coffee on the wireless keyboard rozobral cleaned up all the rules and then stopped working the W S D buttons what to do help.

+ Andrey Ssherbakov Black spots This is the reason for inoperability. Buy conductive glue and redraw the tracks where you saw black spots.

+ VA VAN disassembled saw black spots along the paths tried to wipe it off, most likely the keyboard has already burned out

+ Andrey Ssherbakov Hello. The same situation as mine. Disassemble and view all the tracks, as I do in the video. Most likely one or more of the tracks have burned out.

who have unclean contacts clean and work. contacts are white.

hi i have a problem the keys of the wireless keyboard are not pressed well and therefore some letters slip or get errors in the word you don’t know how to be.

+ Igor Rybak If you don’t want to disassemble, then go to any service try to blow air.

It's wireless and very expensive, so I'm afraid the technology is out of tune. I didn’t put food in it, most likely it’s already over a year old, maybe this influenced it.

Hello. Most likely some liquid or food got there. Disassemble it and wash the keys themselves thoroughly with a brush and soap.

hi i have a problem the keys of the wireless keyboard are not pressed well and therefore some letters slip or get errors in the word you don’t know how to be.

Have you seen your own video ?, who is filming that? I chased flies with a camera, or something.

I have a wired keyboard, but the round nozzles inside the keyboard are the same, and the transparent circuit is also. After parsing, the keyboard does not work at all. What to do?

+ Nastya Snap Disassemble again and check if all wires are soldered to the board.

You dude used rubber glue for patches

What to do if some keys on the keyboard stop working?

And if the letter does not work, but then it jams itself? then again it does not work, and again seizes. Disassembled, wiped, did not help, but if the tracks burned out, the button would not "come to life" and would not jam.

+ VA VAN And yes, I don’t know if I correctly named this flash drive “adapter”? I just don't know how to type in aliexpress search.

+ VA VAN Thank you very much.

Brunet brunetowih. I don't know for sure, but most likely the ceramic capacitors are out of order.

I have a4tech. And for some reason it ceased to work fundamentally, it eats like crazy batteries) I checked everything on the buttons when the buttons fell. I changed the batteries once a year, but right now it doesn’t work for three hours. (maybe you know or someone else is the reason. gum the same situation (before there was such a defect but disappeared. and the shas have already changed the 10th pair of batteries. and everything is in vain. help.

my wireless one also stopped writing after deleting kaspersky i don’t know how to restore my skype estet_620

+ Arman Dzhakupbaev restore kaspersky :))))))

The keyboard is an integral device for the operation of personal computers and laptops. The breakdown of this component makes work and leisure at the computer completely inconvenient. Are the malfunctions with the input device removable? How do I fix the keyboard myself? We will analyze this issue in detail and in this article.

It's no secret that these devices can have different shapes and additional keys with appropriate functionality. Even take the same multimedia keyboard, which has a number of special keys at the top. Pretty convenient, right?

But what to do if several keys have stopped doing their work or the entire keyboard is completely out of order? Without a doubt, you can buy a new device, but then you need to be ready to allocate 10-100 dollars for a new device. Why waste money if you can bring your old device back into working order? Prepare a soldering iron, Phillips screwdriver, tester, and read the troubleshooting guide for multiple cases.

The most common cause of a breakdown is a broken wire connection inside the USB cable, which we are used to using to connect an input device to a computer.

Important! Most often, the break occurs at the base of the keyboard itself or near the connectors for connection.

In order to establish the exact cause of the breakdown, you need to look at the operation of the LEDs, which are usually located in the upper right corner of the device. If the keyboard is “working”, then all three lights should flash and go out during the restart of the computer. If this does not happen, then you need to arm yourself with a multimeter (or any other testers) and ring the cable. To do this, you need to do the following:

1. Turn the device over, take a screwdriver and unscrew all the screws that hold the cover.
2. You will see a “tape” in front of you with a lot of tracks. Also inside the keyboard is a printed circuit board and a small microcircuit, which is a black blob.
3. The wire itself must be soldered to the board. We need to check the integrity of his connection with her. We take a multimeter, turn on the ohmmeter on it and call the desired area. You can also ring the diode, which is much more convenient because of the sound signal.
4. If at least one “vein” does not ring out, then replacing the wire with a defect cannot be avoided. You can try to bite off the part of the wire that is located at the place of passage into the keyboard case with pliers.
5. If everything is in order with the wires, then the matter is most likely in the microcircuit itself. Then you will definitely have to run to the store for a new one.
6. Chances are, the problem is with the connector itself. Examine it carefully for defects and align the bent legs with a thin hard object, if any.

We figured out the return of the whole device to life, but how to fix the button on the computer keyboard?

Often we spill something on the desktop, and it’s good if the liquid doesn’t get on the keyboard from the computer, because if the keyboard gets wet, then several buttons or all of them may fail to work. Also, strong mechanical stress, which sometimes happens accidentally, can lead to partial damage. What to do in all these cases? Let's talk about each method of how to fix the keyboard in detail.

Is your favorite tea on the input device? Immediately disconnect the gadget from the computer and wait until it dries completely. If after that several buttons became unusable, then the following recovery method will help you:

• Remove all keys in order to access the space under them. Use thin objects or copper wire loops for this.

Important! If you are a novice user, we recommend that you save a photo of the location of the keys to your computer so that the assembly goes smoothly.

• Put the keys aside and turn the keyboard over. Now unscrew about a dozen screws holding the cover.
• Remove the cover and the film with tracks, very gently wipe them with a cotton swab, which should be moistened with alcohol. Let the film dry completely.
• Again, take a cotton swab moistened with alcohol and wipe the space under the keys.
• It remains to collect everything back and check the device for performance.

The keyboard device contains contact pads and conductive rubber. They are all located directly below the keyboard buttons. Sometimes minor damage to tracks can be repaired using special compounds capable of conducting current. They are applied to the tracks and bases of conductive rubber. But repairs are not always possible if the device has been used for a very long time.

Important! Users who are fond of typing can generally forget about repairing it, since there is no point in it. Quick wear will bring everything back into place.