Laptop Samsung NP300V5A - a popular model from the mid-2010s, which is still found on the secondary market. Over time, even reliable equipment requires maintenance: cleaning from dust, replacing thermal paste or upgrading components. However, disassembling this laptop has its own characteristics, which are rarely written about in standard instructions.

In this article you will find detailed guide with photographs of key stages, a list of necessary tools and unique tips for working with plastic latches of this model, which often break during careless dismantling. We will also look at typical errors that lead to damage to cables or connectors.

Preparing for Disassembly: Tools and Precautions

Before you start disassembling Samsung NP300V5A, prepare your workplace. You will need:

  • 🔧 Screwdriver set: Phillips PH0 And PH1, flat for prying up latches
  • 🧲 Magnetic mat or container for screws (easy to lose)
  • 📸 Smartphone for photographing the location of cables and connectors
  • 🧴 Alcohol and lint-free cloth to clean contacts
  • 🛠️ Plastic pick or guitar pick to split the body

Critical Point: for this model aluminum body partially glued to plastic backing. If you try to separate them by force, you can tear off the antenna wires of the Wi-Fi module that run under the top cover. This is rarely warned about in general guides!

⚠️ Attention: Do not use metal tools to pry the latches - they will leave scratches on the aluminum case. A 0.5mm thick plastic pick is ideal for this model.
📊 Have you already disassembled Samsung laptops before?
  • Yes, many times
  • 1-2 times
  • No, this is my first experience
  • I looked at other brands

Removing the back cover: step-by-step instructions with photos

Let's start by removing the bottom panel. B NP300V5A it is secured with 11 screws of different lengths - this is important to consider when reassembling. Here is their location:

Screw numberSizeLocationNote
1-43 mmIn the cornersAttach the body to the “legs”
5-65 mmUnder the batteryLonger than the others!
74 mmCenter (under sticker)Hidden by a warranty seal
8-113.5 mmAlong the perimeterAttach the hard drive and RAM

After unscrewing the screws, carefully lift the cover on the left side (from the side of the connectors) and move around the perimeter. Do not apply any force in the right loop area. — there is a matrix cable that can be easily damaged. If the cover does not budge, check:

All 11 screws are unscrewed|

The battery is disconnected (if you are disassembling the power supply)|

No hidden latches under rubber feet|

Use a plastic tool, not a screwdriver -->

Under the cover you will see: RAM slots, hard drive, cooler and motherboard. Please note black train on the right is the Wi-Fi antenna, which often sticks to the cover due to the double-sided tape.

What to do if the cable breaks?

If you accidentally damage the antenna cable, it can be replaced with the universal U.FL-IPEX (article: 1511010000). The main thing is to connect it correctly to the connector on the Wi-Fi module (white is the main antenna, black is the auxiliary one).

Removing the cooling system and replacing thermal paste

Cooling system in NP300V5A - one of the weakest points of the model. Over time, the thermal paste dries out and dust clogs the radiator, leading to overheating. For dismantling:

  1. Turn off the power supply to the cooler (connector JFAN1 on the motherboard)
  2. Unscrew the 4 screws securing the radiator (diagonally so as not to bend the board)
  3. Carefully remove the radiator by rocking it from side to side

Important nuance: This model uses copper heat pipes, which can stick to the processor. If the radiator cannot be removed, do not yank it - heat the area around the CPU with a hairdryer (temperature 60-70°C) for 1-2 minutes.

To replace thermal paste we recommend:

  • 🧪 Arctic MX-6 (enough for 3-4 years)
  • 💧 Noctua NT-H2 (better for high loads)
  • 🔥 Thermal Grizzly Kryonaut (extreme overclocking)
⚠️ Attention: Do not apply thermal paste to the chipset (south bridge) - in NP300V5A it does not have a radiator and is not in danger of overheating. Excess paste can flow under components and cause a short circuit.
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Before applying new thermal paste, wipe off any remaining old thermal paste with alcohol and a lint-free cloth. For better results, you can use contact cleaner Kontakt 60 (item: 100 ml).

Disassembling the screen module and replacing the hinge

If you need to replace the matrix, cable or loops, you will have to disassemble the screen module. B NP300V5A it is secured with 6 screws under rubber plugs and double-sided tape around the perimeter. Algorithm of actions:

1. Remove the rubber plugs from the screws (you can pry them off with a flat-head screwdriver).

2. Unscrew the screws and carefully pry the screen frame with a plastic pick.

3. Disconnect the matrix cable (connector LCD1) and antenna wires.

Key feature of this model: the left loop has built-in cable, which passes through the body. When replacing the loop, you will have to carefully remove it from the grooves without damaging the insulation.

Loop typeArticleCompatible Models
Left (with cable)GH72-02583ANP300V5A, NP300E5A
Right (simple)GH72-02584ANP300V5A, NP350V5C
Set (2 pcs.)GH72-02585AAll NP3xx series
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When reassembling the screen, first secure the hinges, then connect the matrix cable, and only then fix the frame. This will prevent tension on the cable.

Replacing the keyboard and touchpad

Keyboard in NP300V5A secured with 3 latches on top and two screws on the bottom. The main difficulty is not to damage backlight cable, which comes separately from the main cable. To replace:

1. Pry the keyboard from the top side (above F1-F12).

2. Disconnect the main cable (connector KBD1) and backlight cable (KBD_LIGHT).

3. The mounting screws are hidden under stickers with the serial number.

The touchpad is even easier to change - it is secured with 4 screws and one cable (TP1). However, this model often encounters a problem with Detachment of the touch layer. If the touchpad stops responding to touches, but the physical buttons work, this defect is to blame.

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Before purchasing a new keyboard, check its compatibility with Fn key location. In versions for different regions, it may be to the left or right of Ctrl.

Typical problems after disassembly and their solutions

Even with careful disassembly Samsung NP300V5A problems may occur. Here are the most common ones and how to eliminate them:

  • 🔌 Doesn't turn on after assembly: Check the connection of the power connector (DC-IN) and batteries. Often the housing screws short the contacts.
  • 🖥️ No image: make sure that the matrix cable (LCD1) is inserted until it clicks. In this model, the connector often “comes off” during transportation.
  • 🔊 Speakers don't work: Check the integrity of the wires going from the motherboard to the speakers (they pass under the left loop).
  • 📶 Can't pick up Wi-Fi: Most likely, the antenna cable has come off. It can be soldered or replaced (see spoiler above).

If after cleaning the laptop becomes warm up morethan before disassembly, check:

  • Is the radiator installed correctly (there should be no gaps)
  • Are the ventilation holes clogged with dust after assembly?
  • Is there too much thermal paste (should be a thin layer)

FAQ: Frequently asked questions about disassembling Samsung NP300V5A

Is it possible to replace the processor in this model?

Technically yes, but with caveats. NP300V5A supports series processors Intel Core 2nd generation (Sandy Bridge) with socket G2 (rPGA988B). However, the BIOS may not support newer CPUs, even if they are physically compatible. The most tested upgrade is with i3-2310M to i7-2670QM.

How to remove a battery if it is swollen?

It is dangerous to remove a swollen battery by force - it may burst. Proceed like this:

  1. Unplug your laptop and let it cool down.
  2. Work in a ventilated area, wearing gloves and safety glasses.
  3. Carefully pry the battery with a plastic card, starting from the corner opposite the connector.
  4. If the battery case is deformed, do not attempt to disassemble it - dispose of it as electrical waste.

After removal, check the integrity of the connector on the motherboard (BAT1). Swollen elements often corrode contacts.

Where can I find a motherboard diagram for repair?

Official schemes Samsung does not distribute, but there are several trusted sources:

  • Forum Badcaps (section Samsung Laptop Schematics)
  • ElektroTanya (search by model NP300V5A)
  • Groups in Telegram, for example @laptop_schematics

Revision schemes are relevant for this model BA41-01649A And BA41-01650A (they differ in the location of the batteries).

How to check functionality after disassembly?

After assembly, run the tests in this order:

1. Подключите зарядное устройство БЕЗ батареи

2. Нажмите кнопку питания — должен загореться индикатор


3. Подключите внешний монитор (через HDMI или VGA) — если есть изображение, проблема в шлейфе матрицы


4. Проверьте клавиатуру в BIOS (нажмите F2 при загрузке)


5. Запустите стресс-тест (например, AIDA64) для проверки температур

If the laptop turns off 5-10 seconds after turning it on, most likely the heatsink is installed incorrectly or the thermal paste on the north bridge is damaged.