The most vulnerable element of any smartphone is its screen; it is what suffers first when it falls. This short display repair video will show you self-replacement DIY broken display.
First I had to find the necessary spare parts. Several proposals were reviewed. On Avito the sale was carried out at a price of at least 7,500 rubles. for Lumia 1520; on the Savelovsky market it was cheaper than 11,000 with replacement, there were no offers. On sites offering spare parts, an average of 6800 with delivery. Therefore, it was decided to purchase a display kit with a touch screen from this Chinese online store with free delivery, which cost 4,500 rubles. The parcel came with everything we ordered and a bonus - a set of tools for work.
Display replacement.
To work, you will need double-sided tape; commercial tape is already cut into thin strips, but you can use regular tape. We cover the broken screen with tape so that no fragments fall out. To get started, it is recommended to remove the SIM card and memory card slots. Between the slots, a single screw under the seal is exposed. You don’t have to unscrew it, but in this case it will be more difficult to remove the housing.
Carefully pry off the body on all sides. Phones of similar shapes are often disassembled in the same way. The old display, if it is glued to the touch screen, is removed along with all the other parts of the phone. If not glued, then only the touch screen needs to be replaced, which is cheaper and easier.
The halves have separated, now we need to act even more carefully. The most difficult thing will be to remove the battery; a wide and thin battery is difficult not to damage if it is glued, as in in this case. Therefore, if attempts to remove it are unsuccessful, then you can remove the broken screen from the back side and heat it with a hairdryer or heat gun metal carcass, to which the battery is glued. The double-sided tape will become softer and release the battery. Everything else, except the cables, is held on by screws. The necessary screwdrivers are included with the display.
Let us repeat that it makes sense to buy the entire display unit only if the screen and LCD display are glued together. Otherwise, it is enough to purchase a separate screen, the cost of which is 4-5 times lower.
Let's get back to the disassembly. The loops are glued, but they come off quite easily, the main thing is not to jerk sharply. After turning off the smartphone, you need to remove the metal plugs.
Now you can remove the phone's hardware. As you can see, most of it is occupied by the battery and display. We remove the battery. The vibration motor is also glued to double-sided tape and can be easily removed. Remove the old tape and stick it on the new one. The motor must be held securely. Everything has been moved.
Now we assemble in reverse order. On something, such as a battery, the adhesive surface of the tape is still very good, you can just stick it on the old one. But somewhere you will have to replace the tape. We tighten the screws and before closing the case, we check the functionality of the new display. We can turn it on without the case. If everything works, close it, and the phone is like new. But now you have to forget about a good protective coating as was the case with the original screen.
If the screen Samsung phone Galaxy has stopped responding to touches, or the response is delayed, the touchscreen needs to be replaced " Samsung Galaxy" Service center engineers will diagnose the device and determine the timing and cost of upcoming work. Replacing the touchscreen occurs in stages:
- Diagnosis of the cause of the malfunction;
- Samsung Galaxy disassembly;
- Replacing the touchscreen;
- Guarantees.
Owners of Samsung smartphones often encounter damage touch glass screen. Problems in the operation of the touchscreen are manifested in the following symptoms:
- White spots appear on the screen;
- the sensor does not respond correctly to user touches or does not work;
- after calibration, the new settings are lost and the glass again works with errors.
If your Samsung touchscreen malfunctions Galaxy owner smartphone, it is difficult to use a faulty device. Therefore, many turn to a service center - self-repair requires skills and specialized equipment when it comes to mechanical breakdowns (for example, when the sensor cracked after a fall). If the phablet malfunctions due to software problems, here the prospects for troubleshooting depend entirely on computer literacy user. Responsibility for attempts to independently restore the device depends entirely on the user’s decision - no one can guarantee that unauthorized intervention will be carried out efficiently, without complications and will give the desired result.
Causes of touchscreen malfunction on Samsung Galaxy smartphones
Factors leading to touchscreen output mobile phone Samsung Galaxy out of order, varied. These include:
- mechanical damage to the touch glass - chips, cracks;
- malfunction of the cable coming from motherboard;
- flooding Samsung smartphone Galaxy liquid;
- software errors;
- Damage to sectors due to which part of the sensor does not function.
It happens that when the phone falls, the entire display breaks. In this case, to repair the smartphone, the entire screen unit is replaced.
Replacing the touchscreen sensor of a Samsung Galaxy phone
Users will be able to replace a faulty touchscreen without wasting time – the customer service center provides free delivery of equipment before and after repair. To order a courier, call the call center and operators who work around the clock will fill out a request. SC branches operate in various cities of Russia: Moscow, Yekaterinburg, Nizhny Novgorod, St. Petersburg, Krasnodar and others. Full list For cities where service center services are available, see the website. Couriers travel up to eighty kilometers from the service.
To change the touch glass of a Samsung Galaxy phone, technicians from the service center’s engineering department use specialized equipment - replacement involves heating the part to soften the adhesive layer and make it easier to remove the broken touchscreen. Preliminary diagnostics are carried out to identify additional device failures and determine the cost of performing the service. Diagnostics do not increase the replacement price and are provided free of charge.
When the specialist has determined the scope of work, the manager informs the customer of the diagnostic results and announces how much it costs to replace a non-functional touch glass. When consent for repairs is received from the customer, the service engineer replaces the faulty touchscreen. Spare parts used for restoration are double checked. The first time a new component is tested by a technician before installation. The second check is carried out in the quality control department, where the phone goes before being returned to the customer. After replacement with a refurbished phone, the warranty of the service center is valid. Its duration depends on the installed spare parts and the reasons for contacting the service center. In addition, SC clients can order repairs at accelerated program, when the device is restored out of turn. In this case, when filling out an application, you need to notify the operator of your desire to repair your Samsung Galaxy urgently.
Touchscreen replacement guarantees
Replacing a touchscreen is a complex operation that involves delicate work and requires concentration, skills, tools and the ability to handle them. Samsung service center engineers will replace the damaged component and guarantee the proper operation of the phone. The warranty period covering the work of a new part is up to three years.
LIKBEZ
Touchscreen, aka touch screen – an information input device, which is a surface that responds to touch or pressure.
CLASSIFICATION OF MOBILE PHONE TOUCHSCREENS
Sensors are classified by:1. Operating principle
1.1 Resistive– responds to pressure with a thin object (stylus, nail, etc.)
1.2 Capacitive– responds to touch with a finger or a special stylus and does not react on pressure2. Installation type
2.1 To display– the touchscreen is glued to the display around the perimeter or the entire area
2.2 To the body– glued to body parts3. Touchscreen material
3.1 Glass– breaks easily and if damaged, cracks are visible. When replacing, be sure to use gloves and safety glasses!
3.2 Plastic– when damaged there are almost never cracksTo replace touch screens (touchscreens) you need:
1. New touchscreen.
2. A set of tools - screwdrivers and pickers.
3. Half an hour of time and a little patience.
1. DISASSEMBLY OF THE DEVICE
The principles of disassembly are described in some detail on our website. Many phone models are described with photographs and videos. So we won’t describe this point now.
2. REMOVAL AND INSTALLATION OF THE TOUCHSCREEN
This point raises the greatest doubts among beginners and even experienced masters. Therefore, let's look at it in more detail.You need to remove the touchscreen after preheating it to 40-60 degrees. This will soften the glue. If the touchscreen is glued to the display, then heating must be done for 1-2 minutes or longer. If you direct a stream of hot air at the display, the screen glass may crack. So don't rush, we still have enough time
After heating, the glue becomes less viscous. But it still keeps the sensor stationary. The touch definitely needs to be propped up with something. If it is glued to the display, it is better to first cut the glue with a blade or a stationery knife. A touchpad glued to the body is easier to remove - nothing will break. We tear it off without fear.
So, the sensor is removed. There is viscous glue left on the surface of the screen or case. If it has not dried out (not hard, no cracks) and remains completely, then a new touchscreen can be installed on it. If the glue partially remains on the wheelbarrow or has lost its astringent properties, then you need to use new glue. You can buy it at any stationery store - this is the so-called Register on the forum. . We cut out strips of the required length and thickness and place them under the touchscreen. Service centers use special Links only visible to registered users. In order to see links Register on the forum. .
I would like to draw attention to safety precautions when replacing touchscreens.Durable tempered glass, when broken, forms thin and very sharp fragments. If such a nasty thing gets under the skin, it will cause maximum inconvenience. It is very likely that the touchscreen repair will end up in the surgeon's office. And God forbid such a fragment gets into your eye!
That's why ALWAYS use gloves and safety glasses .
The mittens are suitable for ordinary construction or agricultural mittens.
Glasses of any kind, either sunglasses or diopter.3. CALIBRATION
The new sensor will almost certainly not work accurately after installation and will need to be calibrated. Calibration is only needed for resistive sensors.Calibration– this is a point-by-point positioning setting.
This is done through the phone menu (PDA, GPS, etc.), usually in the “Display” menu.
During calibration, a dot (or a cross) appears on the screen, which you will need to accurately press. Positioning in phones and PDAs is carried out using 4 or 5 points. IN touch laptops Usually 16 or 25 points are used.