Disassembling the Lenovo G50-30 laptop: step-by-step guide with photos and nuances

Laptop Lenovo G50-30 is a popular model in the budget segment, which requires maintenance over time: cleaning dust, replacing thermal paste, or upgrading components. However, disassembling this device has a number of features that are often overlooked. For example, fragile latch under the keyboard or a non-obvious cooler mount can cause a breakdown if you act at random.

In this article you will find detailed instructions with photographs of key stages, a list of necessary tools and unique tips for disassembling this particular model - from removing the back cover to removing the motherboard. We'll also cover common mistakes that even experienced users make and explain how to avoid them. If you are planning to replace HDD on SSD, clean the cooling system or simply assess the condition of the internal components - this guide will help you do everything carefully and without consequences.

Preparing for Disassembly: Tools and Precautions

Before you start disassembling Lenovo G50-30, make sure you have everything you need. Missing even one tool may damage the housing or internal parts. Here is the minimum set:

• ✅ Plastic picks or guitar picks — to safely release the latches (metal screwdrivers can scratch the housing).
• ✅ Phillips screwdriver PH0 or PH1 - Most of the screws in this model are small.
• ✅ Tweezers with curved tip - useful for disconnecting cables and removing small parts.
• ✅ Antistatic wrist strap — will protect components from static electricity (especially important when working with the motherboard).
• ✅ Thermal paste (if you plan to replace it) - we recommend Arctic MX-6 or Noctua NT-H2.

Also prepare your workplace: flat surface with good lighting and containers for screws (you can use magnetic substrates or regular jars with lids). Some screws in G50-30 they look similar, but have different lengths - mixing them up during assembly means risking damage to the motherboard.

⚠️ Attention: Do not start disassembling if the laptop was turned on less than 30 minutes ago. Capacitors on the motherboard may retain charge, causing a short circuit if accidentally touched.

Removing the back cover: hidden latches and screws

The first stage is dismantling the bottom panel. B Lenovo G50-30 it is attached to 11 screws (9 under the rubber feet and 2 under the battery) and plastic latches. It is important to unscrew all the screws, otherwise you risk breaking the fasteners when trying to remove the cover.

Algorithm of actions:

1. Turn off the laptop, disconnect the charger and remove the battery (if it is removable).
2. Turn the device over and remove rubber feet — the screws are hidden under them. Use tweezers or your fingernail to pry them off.
3. Unscrew all screws, including those under the stickers (in some versions G50-30 there may be hidden fastenings).
4. Take a plastic pick and carefully move it around the perimeter of the lid, pressing the latches. Start from the corner near HDD-compartment - the latches are weaker there.

If the lid does not budge, do not force it! You probably missed a screw or the latch caught on the inner frame. B Lenovo G50-30 especially problematic area - area near the screen hinge. There the latches hold tighter and are easy to break.

Screw type	Quantity	Location	Features
Cross (PH0)	7 pcs.	Under rubber feet	The longest ones - do not mix them up when assembling!
Cross (PH1)	2 pcs.	Under the battery	In short, they are responsible for fastening HDD-compartment
Cross (PH0)	2 pcs.	Under the stickers	May be hidden under warranty stickers

Disconnecting the keyboard and cables: where the traps are hidden

After removing the back cover you will see the motherboard, cooler and HDD/SSD. However, to get to most components, you will have to remove the keyboard. B Lenovo G50-30 it is attached to 5 latches on top And train from below.

Dismantling instructions:

1. Unscrew the two screws holding the keyboard (they are located under the cover, near touchpad).
2. Carefully lift the keyboard from the top edge (from the screen side) and snap it along its entire length. Do not pull too hard - the cable will remain connected inside!
3. Disconnect the keyboard cable from the motherboard. To do this, lift the black latch up (it secures the connector) and pull out the tape.

Now you can disconnect the remaining cables:

• 🖥️ Touchpad cable — located under a metal plate, secured with a similar latch.
• 🔌 Power button power cable — a small white connector that breaks easily with careless movement.
• 📡 Wi-Fi antennas — glued to the cover, do not pull them by the wires!

⚠️ Attention: B G50-30 The keyboard cable is often soldered to the motherboard unstable. If you feel resistance when disconnecting, don’t pull! It’s better to double-check that the latch is up.

Removing the cooling system and replacing thermal paste

Cooling system in Lenovo G50-30 - one of the most vulnerable places. Dust clogs the radiator, and the factory thermal paste dries out after 2-3 years, which leads to overheating. To clean or replace it, follow these steps:

1. Unscrew the 4 screws securing the cooler to the motherboard (they are marked with arrows on the radiator).
2. Carefully remove the cooler by rocking it from side to side. It may “stick” to the processor - do not apply force, otherwise you will damage the legs of the chip.
3. Clean the radiator from dust using a brush or a can of compressed air. B G50-30 gets clogged especially hard left side of the radiator (from the video card side, if it is discrete).
4. Remove old thermal paste from the processor and graphics chip (if applicable) using a lint-free wipe and isopropyl alcohol.
5. Apply a thin layer of new thermal paste (about the size of a pea for the CPU and a little less for the GPU).

When assembling, make sure that the cooler fits exactly into place. B Lenovo G50-30 A problem that often occurs is that if the radiator is offset by even a millimeter, one of the screws does not screw in completely. This leads to loose fit and repeated overheating.

How to check if thermal paste is applied correctly?

After assembly, start the laptop and check the temperatures in the program HWMonitor or AIDA64. Under normal load (for example, in the test Prime95) the processor temperature should not exceed:

• 70–75°C - for models with Intel Core i3/i5 (series 4xxx/5xxx),
• 80–85°C – for AMD A8/A10 (if the temperature is higher, there is too much thermal paste or it is applied unevenly).

If the readings are higher than normal, disassemble the laptop again and check the fit of the cooler.

Replacing HDD with SSD: nuances for Lenovo G50-30

One of the most popular upgrades for Lenovo G50-30 - replacement HDD on SSD. This increases the system loading speed by 3–5 times. However, this model has several pitfalls:

• 🔧 Form factor: Laptop only supports 2.5" SATA III drives. M.2 SSD will not fit here (connector M.2 in G50-30 missing).
• 📏 Disc thickness: Maximum height - 7 mm. Thicker disks (for example, 9.5 mm) will not fit into the bay.
• 🔄 System transfer: If you want to save Windows, use programs like Macrium Reflect or Clonezilla to clone an old disk to a new one.

Step-by-step replacement instructions:

1. Unscrew the screw securing HDD- compartment (it is marked with a hard drive icon on the lid).
2. Gently pull the plastic loop and pull the drive out of the slot.
3. Remove the metal frame from it (it is secured with 4 screws) and install it on a new one SSD.
4. Insert the drive into the slot at a 30° angle and gently push until it locks into place.
5. Screw the screw back and check that the disk is not loose.

⚠️ Attention: In some modifications Lenovo G50-30 connector SATA may not be soldered securely to the motherboard. If the disk is not detected after replacement, check whether the contact in the connector is bent (carefully bend it with tweezers).

Removing the Motherboard: When Needed

Removing the motherboard Lenovo G50-30 rarely required - usually only for replacement Wi-Fi-module, cleaning dust under the radiator or repairing connectors. However, if you decide to do this, keep in mind: the process is labor-intensive and requires accuracy.

Procedure:

1. Disconnect all cables and cables from the board (including power to the power button, speakers and Wi-Fi-antennas).
2. Remove all screws securing the board to the case. B G50-30 There are 8 of them: 4 under the cooler, 2 near the power connector and 2 under the battery.
3. Carefully lift the board from the side RAM-slots It may “stick” on the thermal interface under the chipset - do not pull, but swing from side to side.
4. If need to replace Wi-Fi-module, disconnect the antennas (they are glued to the cover) and unscrew the screw securing the card.

When reassembling, pay attention to gaskets under screws. B Lenovo G50-30 they are often lost, and without them the board can short out the case. If gaskets are not available, use electrical tape.

Assembling a laptop: how to avoid mistakes

Assembly Lenovo G50-30 after disassembly is an equally important stage. Even if you did everything correctly, one forgotten part or loose screw can lead to failure. Here are the key points:

• 🔩 Screws: Make sure they are all screwed into place. B G50-30 The screws under the keyboard and the cooler are of different lengths - mixing them up means risking damage to the board.
• 🔌 Loops: Check that all connectors are secured with latches. Pay special attention to the keyboard cable - it often falls out during assembly.
• 💨 Cooler: After replacing the thermal paste, make sure that the heatsink is firmly attached to the processor. You can check this by lightly pressing the cooler - it should not “play”.
• 📶 Wi-Fi: If there is no network after assembly, check whether the antennas are connected to the module (they may become disconnected when installing the cover).

After assembly, turn on the laptop and check:

• Does the keyboard and touchpad work?
• Is a new one defined? SSD (if you installed it).
• Are there any extraneous noises from the cooler (they may indicate dust or improper installation).

1. Is the power button cable connected (a common mistake).
2. Did you forget to install it back? RAM (if you removed it).
3. Is the cooler connected to the motherboard correctly (connector CPU_FAN).

In 90% of cases the problem lies in one of these points.-->

Frequently asked questions about disassembling Lenovo G50-30

Is it possible to replace the screen on Lenovo G50-30 yourself?

Technically yes, but it's more complicated than replacing HDD or cleaning. Screen in G50-30 It is attached to latches and a ribbon cable that goes through the hinges. Risks:

• Damage the cable when removing it (it is fragile).
• The webcam or microphone is not connected correctly (they come in the same harness as the screen cable).

If you do not have experience, it is better to contact the service. The cost of replacing a screen in a workshop is about 3-5 thousand rubles (depending on the model of the matrix).

Which SSD is better to choose for an upgrade?

For Lenovo G50-30 anyone will do 2.5" SATA III SSD capacity from 240 GB. Recommended models:

• Samsung 870 EVO - reliable, but expensive.
• Crucial MX500 — optimal price/quality ratio.
• Kingston A400 — a budget option for office tasks.

The read/write speed of all these models will be limited by bandwidth SATA III (about 550 MB/s), but even this is enough for the system to boot in 10–15 seconds.

What to do if after cleaning the laptop starts to heat up more?

The reasons may be as follows:

1. Incorrectly applied thermal paste - too thick layer or air bubbles.
2. The cooler does not fit tightly — check that all screws are tightened.
3. Dust remains in the radiator - in G50-30 It is difficult to blow it out completely without disassembling the cooler.
4. Thermal pads on the chipset are worn out — they also need to be replaced (use gaskets 1–1.5 mm thick).

Solution: disassemble the laptop again, clean the radiator completely (you can rinse it with water and dry it with a hairdryer) and reapply thermal paste.

Is it possible to increase the amount of RAM?

Yes, in Lenovo G50-30 two slots DDR3L (maximum 16 GB, 8 GB per slot). However, there are nuances:

• Models with Intel support up to 16 GB, with AMD - only up to 8 GB.
• If you already have a 4 GB stick, the second one should be the same (to work in dual-channel mode).
• Please check compatibility before purchasing Crucial website (enter laptop model).

The performance gain when upgrading from 4 to 8 GB will be noticeable in multitasking (for example, when working with a browser and Photoshop at the same time).

How can I check if I damaged anything during disassembly?

Carry out diagnostics using the following checklist:

1. Turn on the laptop and listen for any extraneous sounds (creaks, crackling sounds).
2. Check the operation of all ports (USB, HDMI, audio jack).
3. Run a stress test (eg AIDA64) and monitor temperatures.
4. Make sure your keyboard and touchpad are working smoothly.

If everything is in order, but the laptop began to work worse, you may have forgotten to connect the antennas Wi-Fi or not inserted completely RAM.