Laptop
repair

Repair of
screens

A damaged screen is one of the most common laptop problems. Modern laptops use increasingly thin display panels to keep the computer compact and elegant. These thinner panels are more vulnerable to external pressure and bending and break more easily. Much of the fragile screen is also exposed to the user.

A screen may be hit, exposed to liquid or damaged by closing the lid too forcefully. The cause determines the repair needed. The display panel often has to be replaced. Fortunately, our stock includes a wide range of original screens. If a particular spare part or panel is unavailable, we can order a high-quality replacement from our trusted import partners.

Several important points must be considered when replacing a screen.

1. Handle the thin screen casing carefully.
2. Locate the connector and ribbon cable and check the cable route so it is not damaged during disassembly.
3. Choose the correct display panel carefully to avoid further complications.
4. Take care when attaching the connector, as the fine pins and sockets bend easily. Tehnologichno offers competitively priced laptop screen repairs compared with other local repair centres. We repair screens on all laptop brands, including DELL, Lenovo, Asus, Acer, HP, Apple, Fujitsu, Toshiba, MSI and Sony.

Maintenance
for laptops

Cooling is one of the most common laptop problems. As mentioned above, many components occupy a small space. Over time, dust and dirt accumulate in the already narrow air passages, causing overheating and potentially much more serious damage. The problem is worse when the laptop is used by regular smokers. Heat makes the plastic casing brittle, while thermal stress damages internal components, especially the graphics card. The resulting repairs can be expensive, difficult and, unfortunately, sometimes uneconomical.

That is why timely maintenance at appropriate intervals is so important.

How often should a laptop
be serviced?

There is no single correct answer. It all depends on how the device is used.

Here are a few examples to make this clearer.

• If a notebook is used in a clean office on a hard, level surface, servicing once a year is recommended.
• In some circumstances, maintenance every three months is advisable, for example when a laptop is used in a production area, outdoors or on a different type of surface.
• More demanding conditions may even require monthly cleaning. This applies to laptops used on the beach or by the sea. Humid air and sea breezes carry fine sand and dust into the cooling system, where moisture makes them stick and cause blockages. These deposits interfere with the system and can cause serious damage if the device is not cleaned regularly. Laptops used on soft surfaces face similar problems, for example when a person confined to bed uses a laptop without a tray or stand.

Replacement and repair
of laptop hinges

Laptop hinges have a simple purpose: allowing the display lid to open and close. Over time their lubricant deteriorates, making movement harder. This can lead to several other faults: parts of a hinge may break off, the case may crack, or excessive opening and closing force may even break the screen. Timely hinge maintenance helps prevent more serious damage. If the hinges need replacing, we hold a large stock of spare parts. Anything unavailable can usually be obtained quickly from our partners. Tehnologichno in Ruse can repair damaged laptop hinges promptly and to a high standard.

Replacement and repair
of laptop cases

Overheating, damaged hinges and ageing plastic can crack a laptop case and make the lid difficult to open and close. A damaged case creates further risks: electrical components lose protection against impact and liquids, and cables running near the hinges may break. A broken cable may simply cause a weak Wi-Fi signal, but a damaged display cable can short-circuit and seriously damage the motherboard or screen. This increases the eventual repair cost and may make a repair uneconomical.

Repair of
laptop motherboards

When does a motherboard need repair?

A motherboard can be damaged in several situations:

• Liquid spilled on the laptop
• Laptop overheating
• Mechanical damage to the board
• Damage caused by a power surge
• A short circuit through USB, HDMI, DVI, VGA or other communication ports
• A manufacturing defect

The cause of motherboard damage largely determines the type of repair needed.

• If liquid has been spilled on the laptop, the first step after disassembly is to thoroughly clean the board and the other components. We have a large specialist ultrasonic bath that cleans even the smallest, otherwise inaccessible areas where dirt or liquid can collect. We then test the motherboard. If a fault remains, the liquid may have caused a short circuit that damaged a component. We use a specialist diagnostic technique, which we keep as a service trade secret, to find and resolve potential faults. Unfortunately, some motherboards cannot be saved and must be replaced; our team can also handle this.
• If the motherboard fault resulted from laptop overheating the technician's first task is to perform tests and measurements to identify the component or chip affected by heat. The failed part is replaced, and we always use high-quality original components to ensure reliable operation.
• If the motherboard problem was caused by a power surge the technician uses measuring instruments to identify the affected area. If too many components across a large area are damaged, replacing the board is recommended. Where repair is feasible, it is performed carefully under an electronic microscope to ensure precision.
• What is mechanical damage to a laptop motherboard? This means damage caused by an external force, such as impact, bending or a broken section. Our highly qualified, well-equipped technicians can resolve most of these problems. Unfortunately, even they sometimes cannot overcome severe mechanical damage. In those cases, the motherboard must be replaced.
• Communication ports are a common source of motherboard damage because they are used every day, especially USB ports for flash drives, printers and other devices. A damaged port can cause a short circuit and affect other small components on the motherboard. We assess the extent of damage and whether a repair is practical and cost-effective, just as we would after a power surge. Fortunately, better-quality computers have short-circuit protection between the motherboard and communication ports. When this protection activates, the laptop stops working until the short circuit is removed, usually by replacing the damaged port. Replacing a damaged USB port often restores normal computer operation.
• Diagnosing a problem caused by a manufacturing defect is difficult and sometimes impossible. A manufacturing defect may be suspected when a laptop stops working without an environmental, user-related or other apparent cause. Such faults often appear and disappear unexpectedly. Sometimes they occur very rarely, for example an unexplained Blue Screen of Death (BSOD) about once a week. These faults are difficult to trace, and thorough diagnostics require the computer to remain at the repair centre longer so the technician can observe the problem. Only then may there be enough information to investigate its cause. We often use a specialist diagnostic technique for these cases, which we keep as a service trade secret.

Repair of
laptop keyboards

Before discussing laptop keyboard repairs in detail, let us look at the possible causes of keyboard failure.

1. Keyboards are most commonly damaged by liquid spills or dirt.
2. Another possible keyboard fault is keys being physically broken off.
3. Problems can also affect the keyboard electronics and cable connection.

There are many other ways a keyboard can be damaged, but rather than examine every detail, let us look at how some of the most common faults are repaired.

• When repairing a liquid-damaged keyboard, we first clean it thoroughly with a specialist chemical that removes dirt while protecting the plastic and key markings. Our ultrasonic cleaning bath is often used for this. The keyboard is then dried using a specialist process. If it still does not work, we replace it. The type of liquid matters greatly. Sugary liquids, such as sweetened coffee and soft drinks, are especially difficult to remove. Smoking also creates problems: nicotine deposits collect throughout the laptop, including the keyboard. With these deposits present, even a clean-water spill can cause damage as serious and difficult to repair as sugary liquids.
• When keys have detached, users should avoid trying to refit them, as this can further damage the small clips attaching the key to its base. Our technicians have the experience and tools to do this correctly. Repairs usually use keys from a donor keyboard, if one is available. Fortunately, we stock a wide selection of keyboards suitable as donors. Replacing the entire keyboard is always another option and is recommended in some cases.
• Keyboard electronics faults usually cannot be repaired. The good news is that our large stock of laptop keyboards allows us to test and identify exactly what is wrong.

It is important for users not to attempt keyboard repairs themselves, as this often causes additional damage. Common consequences include a torn ribbon cable, a bent base or damage to the keyboard connector on the motherboard.