Is it possible to repair a mouse? Computer mouse repair

Computer mouse- Probably everyone knows what it is. This is a manipulator or coordinate input device for cursor control and feedback. various teams computer. Over time, this device develops various malfunctions: damage to the stranded wire, the sensor often malfunctions, the mouse wheel sometimes scrolls, the mouse buttons do not work, etc.

Let's look at DIY repairs of the most popular computer manipulator- mice!

The mouse is technically quite simple device, so it is quite easy to repair with your own hands. If you know how to handle a soldering iron even a little, this will allow you to fix almost any damage to the mouse. However, even if you are not comfortable with a soldering iron, you can fix some typical mouse damage if you have minimum set tools:

• crosshead screwdriver,
• pliers,
• scissors,
• scotch.

Basic malfunctions of computer mice

Now there are several types of computer mice that differ in the principle of operation (roller, optical or laser), the number of buttons (3 and above), and the type of connection (PS/2, USB or wireless (with USB adapter)). However, the most common are optical ones with a USB or PS/2 connection.

Such mice are relatively inexpensive (not much more expensive than roller mice, but much cheaper than laser ones) and at the same time have enough high accuracy, which is enough for most users.

Disassembly and device of the mouse

We usually disassemble the mouse using a small Phillips screwdriver. To do this, turn the mouse upside down, find and unscrew one or more screws that hold it together. If the screws are not visible, then they are most often hidden under stickers or foot stands:

Usually the screws only hold the mouse in the back. The front part (where the buttons are), most often, is fixed due to special grooves. To remove the top cover from these grooves, you need to lift it slightly by the released back and slowly pull it towards yourself. You can press it a little more from the front, but the main thing is not too hard, otherwise you will break it! The grooves on the top cover of the mouse and the pins that held them in place:

When you remove the top cover, you will find a small circuit board underneath, which is usually only held in place by small plastic pins (although it can also be screwed to the case). Wires (if the mouse is wired), buttons, a scrolling mechanism, as well as a complex of LED backlight and sensitive optical sensor will be soldered to this board:

To completely disassemble the mouse, we need to remove the printed circuit board from it and disconnect the scroll wheel (it can be easily pulled out of the encoder slots).

Wire inspection and repair

Most often, when connected to a computer, the mouse either does not work at all, or twitches or the cursor movement disappears if one of its wires frays or breaks somewhere (unless, of course, the mouse is wired).

A typical optical mouse usually has 4 to 6 wires of different colors. The colors and number of wires depend on the specific manufacturer, however, there is a standard:

Mouse wiring color scheme

Nutrition– red (other options: golden, orange, blue, white).

Receiving data– white (other options: blue, orange, yellow, green).

Data transfer– green (other options: golden blue, yellow, red, blue).

Earth– black (other options: golden green, green, white, blue).

You can definitely judge the correct wiring by looking at letter marking wires in the place where they are soldered to the printed circuit board (unless, of course, they are torn off from the board). Breakage and chafing of wires most often occurs in places where the wire is bent at the exit from the mouse body. You can indirectly check for a break by pulling out the wire and testing it for bending in questionable places (it will be easier to bend at the break point). However, in order to judge for sure, you will have to remove the insulation by carefully cutting it with a blade.

Having discovered a place where the wiring is broken, you need to restore its integrity by soldering or twisting. I personally prefer twisting :) I’ll give a photo of the finished twist, what it should look like:

After splicing the wires, insulate them from each other with electrical tape or tape. You can try it. To avoid burning the port, you need to connect or disconnect the mouse when the computer is turned off! To eliminate all doubts about a break, try calling all contacts USB plug(or PS/2) using a multimeter. After repair, the mouse should work.

Optical mouse sensor does not work

Often there is also a situation when we cannot accurately move the cursor to a certain point. It constantly trembles and moves on its own. This situation clearly indicates that the optical group of the mouse is clogged. Clogging is most often external. Dust or hair gets into the compartment where the diode light is reflected from the table.

To get rid of such a blockage, you don’t even need to disassemble the mouse. Just turn it over and blow it out. As a last resort, use a small brush to remove stuck debris.

If even after such manipulations the mouse cursor trembles, then, most likely, either the sensor is clogged inside or has completely failed.

In any case, you can try to disassemble the mouse and clean the sensor using a toothpick with a cotton swab soaked in alcohol wrapped around it:

Optical sensor computer mouse

Before cleaning the sensor with a cotton swab, you can also try blowing it to remove any fine dust that may stick after it gets wet. After this, carefully, without pressing, insert the toothpick with rotational movements into the sensor hole. After making a couple of turns and without stopping rotating, we take out the toothpick, wait for the alcohol to dry and try to connect the mouse.

If, after all attempts at cleaning, the sensor does not work normally, then if you have another mouse, a soldering iron and straight hands, you can unsolder the non-working microcircuit and replace it with a sensor from another mouse.

Mouse wheel scrolls

It happens that the mouse works fine, but when we try to use its wheel, the page we are scrolling begins to jump up and down, or does not want to scroll at all. Alas, the failure of the mouse wheel is quite frequent breakdown and it was she who prompted me to write this article. First you need to carefully consider how evenly the wheel rotates in the groove. The groove itself and the wheel axle have a hexagonal cross-section, but sometimes one or more sides of this hexagon can become deformed, resulting in the axle slipping in the problem area.

If you have exactly this problem, then it can be solved by sealing the edge of the wheel axle with adhesive tape or electrical tape. small quantities. If everything is normal with the movement of the wheel, then the breakdown has occurred inside the encoder (scroll sensor). From long-term use it could have become loose and should be tightened a little:

We tighten the latches of the mouse scroll mechanism

To do this, take small pliers and press them one by one on the four metal brackets that secure the encoder to the plastic parts of the scroll mechanism. The main thing here is not to overdo it and not break the fragile plastic, but at the same time press harder. Try connecting the mouse and checking if the negative effect when scrolling after each compression. Alas, in my case it was not possible to completely get rid of jerks. Yes, the frequency and spread of page jumps have decreased, but the jumps themselves have not completely disappeared. Then I decided to approach the issue of sealing radically and in a truly Russian way :) I cut out a piece of thin but dense polyethylene from an old battery pack and stuck it inside the mechanism:

Seal inserted inside the mouse scroll mechanism

What’s most interesting is that this manipulation helped! All I have to do is cut off the excess length of the strip and assemble the mouse :)

There are several more options:

• disassemble and clean the mechanism;
• replace the mechanism from another mouse (with a different malfunction).

Mouse buttons don't work

Any button has its own click resource. Usually the contact at the left mouse button disappears. The mouse has several buttons: left, right and under the wheel. They are all usually the same. Not working button There is practically no way to repair it, but it can be replaced from another mouse.

Bottom view of a soldered mouse button microswitch

The microswitch has three “legs”, the first of which is free, and the other two are contacts that need to be soldered. Sometimes the button still works, but it doesn’t work every time you press it. This symptom may indicate that frequent use the edge of the button pusher that presses the microswitch has worn off or bad contact inside the contact plate switch.

We disassemble the mouse and carefully examine the problematic button and its pusher. If we see a small dent, then that may be the problem. It is enough to fill the dented area with a drop of epoxy resin or melted plastic. At the same time, while the switch is disassembled, you can clean the contact group.

The last problem you may encounter is that the mouse button makes a double click when you click on it - the so-called contact bounce. This issue can be solved by re-soldering the microswitch or... programmatically!

In any case, before you take up the soldering iron, check that the mouse settings are correct in the Windows Control Panel:

Standard mouse properties, what they should be

According to the speed skid standard double click should be centered, and the sticky mouse buttons option should be disabled. Try setting these parameters and check if the problem is resolved. If not, another radical programmatic method“cure” for double clicking – removing the mouse driver.

Mice– one of the most actively used computer devices. Therefore, it is not surprising that they often fail. However, due to the simplicity of their design, in most cases anyone can fix a mouse! To do this, you don’t need to know how to solder or understand electronics.

Even the best, high-quality mice tend to get clogged. There are a lot of small crevices in them that even a needle can barely fit through, but dust and hair are placed there comfortably. And occasionally for this small device This is how coffee gets spilled inappropriately. What to do when the mouse is clogged and the buttons and wheel do not respond as expected? There is only one way out, or rather two: you can easily throw out the mouse, but if this was not part of your plans, you will have to disassemble it mouse .

You will need

• Small Phillips screwdriver, container for storing screws

Instructions

1. Prepare the mouse for disassembly. To do this, disconnect it from the computer and place it on the table, upside down. Locate the mounting screw on the bottom surface of the mouse. The screws are sometimes not immediately visible, because they are often hidden under stickers. In this case, first remove all stickers from the base of the mouse.

2. Carefully unscrew the mounting screws. The screw heads on mice are traditionally cross-shaped, and therefore the same type of screwdriver is required. The screws are located in recesses; it will be easier to remove them with a magnetic screwdriver. It is important that after unscrewing, put the screws in a prepared container, otherwise they will get lost.

3. Open the case. To do this, hold the mouse with both hands on the bottom and top surfaces and pull the cover towards you. Calculate the force so as not to break off the lid latch near the cord. The best thing to do is to pull the lid up and a little to the left. Now you can blow out and clean the insides of the mouse from accumulated debris and dust.

4. Remove the scroll wheel from the base of the mouse. There are various designs for mounting scrollers. Most often, just pull up and the wheel will come out together with its mount or latch. There is often a lot of hair wrapped around the scroller axis. Remove this hair with a suitable tool.

5. Remove the board or mouse chip. The board is secured with latches or screwed. Gently bend the latches with your fingers. Unscrew the screws and put them with the rest of the parts. Lightly pull the board up to separate it from the mouse body. That's it, the mouse parsing is complete.

Occasionally, a computer mouse suddenly loses its functionality. This is due to chafing of the cable near the case itself. In such a situation, you have two options: purchase new mouse or try to repair the old one.

Instructions

1. Disconnect the mouse from the PC. Take a small Phillips screwdriver to disassemble computer mouse. Find the mounting screws on its bottom surface. Unscrew them with the support of a screwdriver.

2. After this, try to remove the top cover of the case. Pry it with a thin, sharp object from the side opposite the cable entrance to the mouse. If the case does not budge, it means there are hidden screws. As usual, they are located under the rubber feet of the mouse. Remove the rubber bands from the holes. Using a Phillips screwdriver, remove the remaining screws.

3. Look under the stickers. There may also be mounting screws hidden there. Please note that damaging the sticker is only allowed if the warranty repair period has expired. Otherwise, it will no longer be possible to repair your computer mouse at a service center.

4. You will save rubber feet from the fact that without them it will be very inconvenient for you to use the mouse. It turns out that in order to disassemble the mouse, remove top part housings. Remove the scroller. Usually it is equipped with a shaft, fixed on one side in a detachable hinge. The other end of the shaft should be attached to the encoder hole.

5. Lift the shaft over the joint and remove it from the hole. Remove all screws holding the board in place. After this, remove the latches. Later, remove the optical cover and lens from the board. Leave the multi-pin connector in its original location. Take wire cutters and cut the wire until it enters the housing.

6. Cut the damaged piece of cable to repair the mouse. After this, clean the contacts. Take a soldering iron. According to the colors of the pins, solder them to the multi-pin connector inside the mouse body. Later, connect it to your computer. See if the LED lights up and if there is a reaction to the rotation of the scroller.

7. After this you can return to former place lens and check if there is a reaction to movement. If the mouse works properly, reassemble it. If not, check the positive solder connections on the multi-pin connector. It is possible that you left a jumper between the contacts.

If you have ever organized a meal at a laptop or the process of cooking near a laptop (there are some), most likely, after these events, your laptop refused to work. Maybe it works, but something from food got under the key. In order to pull out a particle of your previous food from under the key, you need to disassemble the keyboard or remove only the key.

You will need

• Laptop keyboard, tool for removing keys (anything thin and not sharp).

Instructions

1. In order to begin cleaning the keyboard buttons, you need to remove the keyboard. Many laptop keyboards come apart from the keys. In order to avoid mistakes during assembly, it’s best to take a photo of your keyboard or a photocopy. Any key on a laptop keyboard consists of several parts: - key pad; - key lift; - spring element (not present in all keyboards).

2. To quickly complete the process of removing the keys, any thin and non-sharp object can be used: a watch screwdriver, a thin awl, a dental hook. The keyboard button pad is connected to the elevator via latches. Connections can be either movable or non-movable. With support for static connections, the key is detached from the keyboard body. As usual, this connection is located at the bottom of the keyboard button. You need to insert the hook between the static connections, ensuring that it goes between the elevator and the landing.

3. So you took one off button. If you need to do the same with multiple keys, be mindful of their placement. Use your photo or a photocopy of the keyboard when reassembling the keyboard buttons.

4. The keys are placed in their former place by completely snapping into place. Put button to its intended place and press it.

Video on the topic

Personal computers have long been impossible to imagine without a keyboard and mouse, which are the main intermediaries in the “communication” between the user and technology. Unfortunately, mice break and start acting up quite often. The computer mouse can be disassembled and cleaned.

Instructions

1. Dirt and dust penetrate into the ball mice better than anyone, getting under the roller. The cursor begins to twitch when moving, or may not move at all in any direction. Therefore, it is very important to use a rug and make sure that dust does not accumulate on it.

2. Disconnect the pointing device from the PC, but only when the system unit. The mouse body can be cleaned with a traditional damp cloth and a small amount of liquid soap. But don't even think about washing it mouse under running water. True, after disassembling the optical (precisely optical) mouse, the case itself can be thoroughly rinsed. Primitively, mechanical mice also have a microcircuit that cannot always be removed from the case.

3. Take a small Phillips screwdriver and unscrew the small screw that is located in the recess at the bottom of the manipulator body. Typically the body consists of 2 parts. There may also be a small latch on the side of the screw. Carefully divide the body without using any special force.

4. If the mouse is optical, you need to carefully wipe the glowing scarlet “eye” in its lower part using a match with cotton wool or an ear stick. You can also use a can of compressed air. Carefully remove from the housing optical mouse a huge microcircuit and free its plastic parts from dust, dirt and hair (wool). Remove the rubber-covered ball from a ball mouse and wash it with soap or wipe with alcohol. Pay special attention to the mouse wheel and its mountings. Dirt often accumulates there too.

5. For mechanical removal To remove dirt, it is better not to use a knife or razor, but to take a small plastic scraper. Carefully scrape off dirt from its support where possible.

6. Having dealt with dust and adhering dirt, remove grease from the rotating parts of the manipulator. This can be done with a soft, lint-free cloth soaked in alcohol. Also wipe all the insides of the mouse with alcohol to prevent dust from accumulating for longer.

7. It is now allowed to collect mouse. Put the chip (wheel) back and close the case. Be careful not to pinch the wire. Tighten the screw and consider the mouse cleaned.

If, while working at the computer, your hand with which you are holding suddenly and suddenly begins to hurt mouse, the pain intensifies and does not go away for a long time, then we can “congratulate” you. This is a manifestation of tunnel syndrome, following the disease of civilization. Severe pain and the impossibility of continuing to sit at the computer may hide swelling of the tendons and damage to the nerve of the wrist. May even develop chronic form joint diseases. How faithfully you hold the computer mouse, your health depends.

Instructions

1. Check how you usually hold mouse PC. In order to hold mouse positively, the hand should be straightened and located as far as possible from the edge of the table.

2. Stop using the retractable keyboard and mouse tray. Better yet, pick them up and place them on the table in front of the monitor. The angle of the arm in this case will be closer to 90 degrees, which will be more convenient for you.

3. The furniture on which you sit - a chair or an armchair - must have armrests that will provide necessary support hands and wrists.

4. Mouse pads are not a relic at all, only if there is a special anatomical convexity for the wrist. Using such a mouse is very comfortable and reliable. Therefore, be sure to purchase such a positive rug.

5. Do exercises for your arms for the whole hour or even two hours. It doesn’t matter which one: from the well-known “We wrote, we wrote, our fingers are tired” to snapping fingers – as long as it lasts longer.

6. If you don’t feel comfortable using a mouse, use a special hard medical bandage that also supports your wrist. It can be purchased at an orthopedic salon or at a pharmacy.

7. You need to move the mouse with just your fingers, and not with each hand, especially with the support of your shoulder. Hold mouse behind the edges with your huge finger and little finger, place your index finger on left button, middle finger on the wheel, ring finger on the right button.

Video on the topic

Note!
If carpal tunnel syndrome It’s not just making itself felt in a primitive way, but it’s really worrying, go to the doctor immediately and don’t delay treatment.

Helpful advice
Learn to use the mouse with both hands. Changing the position will help avoid pain. In addition, it is suitable for developing coordination and posture. Change the functions of the left and right buttons The mouse is easy to configure in the control panel.

Sometimes it is necessary not only to assemble cabinet furniture, but also to disassemble it in order to transport it to another place. You can disassemble the table if you have the necessary tools and carefully study its design.

You will need

• - flat screwdriver;
• - a huge Phillips screwdriver.

Instructions

1. When starting work, find all the attachment points for the tabletop and legs. The normal fixing elements are located under the tabletop. It is attached to the legs, which can be connected to each other by transverse strips.

2. If the table is combined with another table or with a “corner”, first unscrew the screws (or screws) that hold the ties. Ties have the form of brackets or rectangular plates.

3. Remove the ties that connect the tables. This way you will separate the table from consoles or other furniture.

4. Loosen the tabletop fastening elements. When it is no longer secured, proceed to remove it from the table legs.

6. Place all fasteners (accessories) in a bag and tie them to the boards of the disassembled table, so that if you move, the polished furniture will not be scratched.

7. Take a flathead screwdriver or a large Phillips head screwdriver to remove the table top. With the help of these tools, turn the drums counterclockwise (four extravagant ties). Maintain a rotation angle of about 180 degrees (approximately half a cycle, no more). The eccentrics are located on inside legs closer to the tabletop itself.

8. Typically, such screeds have an arrow pointer. Therefore, when turning the drum counterclockwise, make sure that this arrow points sternly upward. This location indicates that the ties are loose. Using this method, unlock all four ties that are located on the table legs.

9. One leg can have two attachment points, which can be hidden under a decorative overlay to match the color of the table. Therefore, before turning the tie, remove the small plastic circle (decorative element).

10. In order to separate the table legs from the connecting transverse board, point the arrows on the eccentrics directly towards the table legs, bring them into horizontal arrangement. Turn the ties counterclockwise.

Helpful advice
On a piece of paper, draw up a diagram for disassembling the table to make it easier to assemble it in a new place.

Wireless devices are becoming more and more popular among users, and most definitely wireless mice. Most often you can see them among laptop owners, although in some cases they can also be seen among users desktop computers. After unpacking, many customers of wireless mice wonder: where to put the batteries?

Instructions

1. First of all, unpack the contents of the box and take it out mouse. Please note whether the kit includes brochures or instructions. It turns out, take it mouse in your hands and look attentively. Usually the manufacturer makes a battery compartment at the bottom of the mouse, but in rare cases it is located primitively in the middle. If the compartment is located at the bottom, then pry it with something sharp or, if there is a “tongue,” press it. Insert the batteries and close the cap.

2. To gain access to the compartment, you need to click on the upper part of the mouse body, and then slowly pull it towards you. Don't worry: the mouse will not break, only the moving part will be removed. Insert the batteries and close the lid, the main thing is not to break the teeth that are inserted into the grooves on the case. The main locations of battery compartments in mice are discussed. If your wireless mouse does not have a compartment in the 2 indicated places, then read the instructions that come with it. The instructions can also always be downloaded on the manufacturer’s official website.

3. During application wireless mouse Sometimes it is necessary to completely disassemble its body - for example, to clean it from dust or to troubleshoot problems. Start with the screws. Look observantly at the bottom of the mouse: remove the stickers and legs, from what is hidden under them greatest number screws Unscrew them and carefully remove the upper part of the housing. On some “sophisticated” mice, the upper and lower parts of the case are connected by a special cable, and if it is torn off, you will have to take it for repairs. It makes no sense to unscrew all the insides, since every dust will already be clearly visible. The screws can be pre-numbered so as not to get confused when assembling the mouse. The legs can be glued back with double-sided tape or cleaned in advance and glued with silicone glue.

Helpful advice
The mouse is assembled in reverse order. The board, scroller and cover are put in place. If there are latches, make sure that they all click into place.

Often the cause of such problems is simple blockage. There are often cases when something is spilled on the mouse, and not always ordinary water, but, for example, hot sweet coffee. In such situations, there are two options: purchase a new device or try to repair the old one.

If you know how to disassemble a mouse, you can avoid downtime while working on your computer and fix the problem yourself.

The main reasons for the breakdown of a computer “rodent”

First, find out what caused the problem. You may not have to disassemble the mouse. So, the main types of breakdowns are as follows:

• technical - frayed wire, damage USB connectors or PS/2;
• mechanical - incorrect work scroll wheel, lack of response to button presses;
• wrong setting for specific application or games.

The latter situation does not require repairing the manipulator. It is enough to produce necessary settings. Before disassembling the mouse, make sure that the cord (in the case of a wired device) and the connector are intact. If the cause of the breakdown lies in them, it is useless to do this. When the manipulator does not respond to the user’s actions due to the scroll wheel not working, clogging or other reasons, there is nothing else left to do but begin repairs.

Required Tools

How to disassemble a mouse? You don't need a wide range of tools for this. All you need to do is arm yourself with a Phillips screwdriver and prepare a container to safely store the screws. Otherwise, when it comes to assembly, they may simply not be there. Carried away by his work, the master sometimes simply sweeps them away with his hand, without noticing it. And find these small parts turns out to be very difficult.

Instructions for disassembling a wired mouse

Follow these steps:

1. Disconnect the mouse from the computer and turn it upside down.
2. At the bottom there are mounting screws. They may not be immediately noticeable under the stickers. In this case, clean the surface of the device and unscrew the screws.
3. Open the case, holding the mouse with both hands by the different halves. You need to be extremely careful, otherwise you can break off the latch, which is located on the cover near the wire.
4. The scroller (scroll wheel) is removed from the base of the device. To do this, pull it up slightly. The wheel should come out with the latch or fastener.
5. Remove the mouse chip or board. If it is secured with latches, use your fingers to pry them back, being careful. If screws are used, they are unscrewed and placed in a prepared container. The board is easily separated from the case if you pull it up.

Analysis of the wired mouse is completed. After troubleshooting, collection is performed in the reverse order. Be careful, some parts are fragile and can be damaged even if you apply little force.

Analysis of a wireless mouse: Logitech

Modern manipulators are not connected to the computer with a cord. Logitech occupies a leading position in the production of wireless mice. Despite all the shortcomings, which, however, have already been eliminated, these devices are considered one of the best.

So, how to parse Logitech mouse:

1. Unscrew the screws that secure the two halves of the housing. To do this, you will need to undermine the elastic cushions: one in front and two in the back. There is no other way to get to the screws.
2. Carefully separate the two halves of the housing.
3. At the top there is small fee, connected to the main one using a loop. To disconnect, remove it from the connector and then pry it out with a screwdriver. plastic latch. It is an element for fixing the cable.

The question of how to disassemble a Logitech mouse has been answered. It is assembled in the same way, only the steps should be performed in reverse order.

Analysis of a wireless mouse: A4tech Bloody

Using a high-quality laser sensor in the manipulator - undeniable advantage. This is exactly what A4tech mice with the Bloody brand are ready to boast of. They belong to the gaming class.

How to disassemble the A4tech Bloody mouse? More on this in the instructions below:

1. Unscrew the two screws that are on the case and remove the top part. To do this, pry it slightly, being careful not to damage anything.
2. Turning the mouse frame over, you can see a metal plate. Unscrew it.
3. Remove the mouse wheel. If there is dirt or hair, clean it. If you take it apart Bloody mouse, it will be seen that the wheel consists of two parts.
4. To remove the board, carefully unscrew the screw.

Now it’s clear how to disassemble the A4tech mouse. To assemble it, follow the same steps, only in reverse order.

As practice shows, disassembling a computer mouse is not difficult. It is enough to follow the basic rules:

• perform all actions carefully so as not to inadvertently damage the fragile elements of the device;
• make sure that none of the parts are lost;
• if there are legs, be sure to install them in place, otherwise it will be difficult to work with the manipulator;
• If there are latches, please note that there should be a click when they are secured.

Before you take it apart wireless mouse or a device with a cord, please rate own strength and skills. Maybe, the best option will take the device for repair, where it will be repaired by experienced specialists.

Considering the widespread use of computers that is observed today, the instructions “How to disassemble a mouse” will be useful in various situations.

After all, without it it is almost impossible full-time job cars. Next we will tell you how to disassemble and repair a computer mouse.

As a rule, these devices are quite reliable, good mouse It will last for several years, but it happens that over time it begins to function poorly or stops working altogether. Most often, buttons or a wheel may fail. Failure may occur due to various reasons, but this is not a reason to take the device for repair or replace it with a new one, since the problem can be completely trivial and can be solved in a matter of minutes. Due to the fact that the mouse is not a complex device, you can easily repair it yourself, extending its service life for more than one year. Very often, when opening the mouse, it turns out that the cause of the breakdown was an ordinary blockage, but even if not, then making minor repairs will not be difficult.

To repair a mouse yourself, you will not need many tools that are present in almost every home. A screwdriver, pliers and scissors are the minimum required for the job, but perhaps also a soldering iron. In addition to the lack of material costs, the big plus is that you can immediately provide normal work computer and won’t waste precious time shopping and workshops.

There may not be many reasons why the mouse does not respond to your actions at all or some of its elements (buttons, wheel) have stopped working:

• the wire has chafed;
• the integrity of the board has been compromised;
• the wheel is loose;
• the lubricant used to treat the mechanism from the inside has dried out;
• The scroll sensor is broken;
• the optical sensor is clogged;
• LED is faulty;
• The button mechanism has become loose or broken.

Most of these breakdowns can be easily fixed at home by determining the cause after opening the device case.

How to disassemble a computer mouse

To repair or clean the device, there is no other option than to disassemble the mouse. As they say, our man is able to disassemble everything, the main thing is, then return all the structural elements to their place and not find unnecessary details during assembly.

So, to open the case and disassemble the mouse, you need to arm yourself with a Phillips screwdriver, and then start doing a certain sequence actions:

Regardless of which mouse needs to be opened, wired or wireless, the principle of disassembling any mouse will be the same. The main thing is to be careful when removing the cover and board, as some parts are very fragile. After the procedures, the device will be assembled in the reverse order; it is important not to lose all the unscrewed screws before assembly.

Carrying out repairs

Once you have managed to disassemble the mouse, the cause of its problem will immediately become clear; it is possible that there will be no need to carry out repairs, because often the problem lies in a normal blockage. Then it is enough to carry out preventive maintenance, such as cleaning the mouse, and the device will again begin to please with its performance.

You can clean the surface of the printed circuit board using a small brush, a piece of cloth (necessarily lint-free), a cotton pad or a swab. After brushing off the first dust, moisten a cotton pad or cloth with alcohol and carefully wipe all elements of the board, the wheel, and the inside of the case. The optical sensor of the mouse can be easily cleaned with a toothpick and cotton wool soaked in alcohol.

How to fix a mouse wheel

Wheel failure is a fairly common problem. If you notice that the wheel scrolls the slider on the screen in jumps, then most likely the scroll mechanism of the mouse is simply loose. To repair it, use small pliers to press the metal brackets that secure the sensor to the plastic elements of the mechanism. It is important not to overdo it and not break parts. Check how the wheel spins after the procedure.

If the wheel scrolls and does not react in any way to your actions, most likely part of its axle has broken off. With help paper clip you can build a new mount. Straighten the paper clip, bend it in half, twist it. Measure the resulting part along the length of the broken part, adding 1–2 mm, and bite off the excess with wire cutters. Now all that remains is to heat the edge red hot with a lighter. new axis and press it to the place where it was broken off. After the material has hardened, put the wheel in place and check how it turns.

If you have wired mouse and the wire is found to be chafing, this can be corrected by twisting or soldering.

Carefully cut the insulation in the place where the damage is noticed, strip the ends of the wires, twist them together according to color. First insulate the twists using heat shrink or electrical tape, cover all the twists together with insulation.

If you decide to use a soldering iron, the damaged part of the wire is simply cut off, the ends of the wires are tinned with solder, and then soldered to the board. It is important not to confuse the location of the wires and solder everything in the same places, because the common color scheme no, and each manufacturer chooses the colors of the veins at his own discretion.

How to fix buttons

It often happens that one or more mouse buttons stop working; first of all, you should clean them, perhaps this is due to plaque that accumulates over time.

When the button still works, but often does not work when pressed, then the problem must be looked for in its pusher, which could be worn out over time, which is due to poor contact with the microswitch. If a small dent is found, just fill it with a drop of molten plastic so that the button begins to function again.

If the problem persists, it may be due to a faulty microswitch. In this case, you need to unsolder the old switch and put in its place a new one or one taken from another mouse.

Some button problems can be resolved without disassembling the mouse. Before trying to repair the device, it would be useful to delve into the mouse settings. It is important to make sure that the sticky button function is disabled and check the drivers, which largely depend on

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