Disassembly Xiaomi Notebook 9: instructions from A to Z with photos and expert advice

The Xiaomi Notebook 9 can be a must for many reasons, from a simple dust cleaning to a replacement heat paste or a faulty battery. But this laptop, like most Xiaomi ultrabooks, is designed with a focus on compactness rather than repairability, which means that without preparation, you risk damaging plastic latches, tearing plumes, or even disabling the motherboard.

In this article, we'll take a step-by-step approach to the pitfalls of a particular model, and you'll learn what tools are required, how to remove the bottom cover properly, how to get to the cooling system, and what to do if the laptop doesn't turn on after disassembly, and we'll focus on the common mistakes that beginners make, which we've identified as separate warning blocks.

⚠️ Important: Xiaomi Notebook 9 It comes in several versions (for example, Notebook). 9 Pro or Notebook 9 2020). They look similar, but the internal layout may be different! Make sure your model matches the one described in the article before starting the disassembly.The model number is usually listed on the sticker under the laptop or in the System Information (Win keys). + Pause/Break).

1.Preparation: tools and conditions

Before you disassemble the Xiaomi Notebook 9, prepare your workspace and tools. The best thing to do is work on a large table with good lighting, because small screws and latches are easy to lose.

• ✅ Plastic mediators or shoulder blades (2-3 - for tidy lids. Metal tools can scratch the body.
• ✅ Screwdriver kit: cross-haired PH00 (for small screws), flat 1.5 mm (for grazing latches), hexagon H1.5 (if there are torx screws).
• ✅ Tweezers – to extract small parts, such as rubber legs.
• ✅ Thermopaste (if you are planning a replacement) – for example, Arctic MX-6 noctua NT-H2.
• ✅ Antistatic bracelet or at least grounded surface – so as not to damage components with static electricity.
• ✅ Containers for screws – you can use magnetic mats or signed boxes.
• ✅ Hair dryer or alcohol - to clean the radiator and fan from dust.

Also, get your camera or smartphone ready: take pictures of each stage of the disassembly, especially the location of the plumes and screws. This will make it much easier to reverse assemble. If you're disassembling a laptop for the first time, watch the video instructions on YouTube - visual support will help avoid errors.

2. Removal of the bottom cover: Step-by-step with a photo

The most important step is to remove the bottom cover. In the Xiaomi Notebook 9, it is attached to screws and plastic latches that are easy to break.

1. Turn off the laptop and unplug the charger. Turn it down.
2. Remove the rubber legs (if any). They are often hidden screws underneath, tweezers or nails, they hold on to glue.
3. Unscrew all the screws on the bottom cover. 9 usually 10-12 Some of them may be hidden under stickers, so take them off carefully so you don't tear them.
4. You can apply the cap to the mediator, starting at the corner next to the hinges of the screen. You can move around the perimeter, alternately releasing the latches. If the lid doesn't lend itself, don't push harder, but check if all the screws are twisted.

Critical detail: in Xiaomi Notebook 9 The track of the touchpad runs under the lid next to the left loop. If you pull the lid too sharply, you risk tearing it off! 1-2 Check inside to make sure nothing is disturbing.

⚠️ Warning: If you see one of the plumes (such as a touchpad or keyboard) being pulled off after you remove the lid, don't panic. Carefully lift the lid back, straighten the plume and try again. In 90% of cases, it can be inserted back in without consequences.

3. Battery shutdown: why it's necessary

Before any manipulation of the insides of the laptop, be sure to turn off the battery. In the Xiaomi Notebook 9, it is located in the center of the case and connected to the motherboard through a wide connector.

1. Find the battery – it’s a large rectangular detail labeled Battery.
2. Carefully apply a plastic latch to the power connector (usually black or white).
3. Unplug the plume by pulling it upwards, make sure the contacts don't bend.

⚠️ Attention: If you skip this step and accidentally close the contacts on the motherboard (for example, with a screwdriver), it can lead to burnout of components. 30-50% notebook.

After the battery is turned off, wait. 1-2 So, you can use a minute to discharge the residual voltage in the capacitors, and then you can touch the other components.

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If the latch on the battery connector breaks, don't try to turn it off by force. Instead, unplug the keyboard plume, which will de-energize most of the components.

4. Access to cooling system and replacement of thermal paste

One of the most common reasons Xiaomi Notebook 9 disassembly is overheating. Over time, the heatpaste dries up, and the laptop starts to brake or turn off when it's loaded, to get to the radiator and the processor:

1. Remove the lid (as described above) and turn off the battery.
2. Unscrew the screws that fasten the cooling system (usually) 4-6 They can be of different lengths -- remember where you stood!
3. Take the radiator off carefully. If the heat paste is dry, it can get stiff -- don't pull, just turn the radiator slightly left and right.
4. Clean the residues of the thermopaste from the processor and graphics chip (if any) with a wipe dipped in isopropyl alcohol (90%+).
5. Apply the new thermopaste in a thin layer (roughly like a grain of rice). Use a plastic card to distribute it evenly.

Also check the condition of the fan: if it is clogged with dust, clean the blades with a brush or compressed air. Do not blow with your mouth - moisture from the breath can condense on the board.

⚠️ Warning: If the temperature of the processor has not dropped after replacing the thermopaste, check if the radiator fits tightly. Sometimes the cooling screws weaken over time - they need to be tightened with effort. 0.5-0.6 Nm (use a dynamometer screwdriver if you have one).

5. Battery replacement: nuances and articles

Battery in Xiaomi Notebook 9 — One of the most vulnerable places. 2-3 During the year of operation, he loses 30-40% It's a capacity, and in some cases it starts to swell, and you can replace it yourself, but there are a few key things:

• 🔋 Original article: MBP-009 (notebook 9 2020) or MBP-010 (notebook 9 Pro. The cost is about 3000-4500 ₽.
• 🔧 Fastening: the battery is glued to the body with double-sided tape. To remove it, pull a special loop (if any) or gently tuck it with a plastic spatula.
• ⚡ Calibration: After replacement, complete the full charging-discharge cycle (3-4 time) so that the controller correctly determines the new capacity.

If you notice that the battery is swelling, don't delay replacing it. Bloating can lead to:

• 💥 Touchpad damage (battery presses on it from below).
• 🔥 Short circuit due to board deformation.
• 🖥️ Cracks on the body (especially if the laptop is thin).

For battery replacement:

1. Disconnect it from the motherboard (as described above).
2. Carefully separate the adhesive tape holding the battery.
3. Connect the new battery, making sure that the connector sat tight.
4. Secure it on a double-sided scotch (comes complete with a new battery).

6. Disassembly of keyboard and touchpad

The keyboard and touchpad in the Xiaomi Notebook 9 are attached to the top of the case, and it takes great care to replace or clean them, because the plumes are very fragile.

Keyboard:

1. Remove the bottom cover and turn off the battery.
2. Find the keyboard plume – it is located under the metal plate (twisted). 2-3 screw).
3. Disconnect the plume by pulling the black latch up.
4. Turn the laptop over and gently tuck the keyboard with a plastic spatula, starting at the top edge (above the function keys).

Touchpad:

1. The touchpad plume is next to the battery. Turn it off just like the keyboard plume.
2. Touchpad is attached to 2-3 Unscrew the screws and carefully separate it from the body.

⚠️ Warning: If you're disassembling a laptop because of a broken key, first check to see if it's dirt or liquid. Often, the problem is solved by cleaning, not replacing the entire keyboard:

• Remove the non-working key by pulling it up from the side with a screwdriver.
• Clean the mechanism under the alcohol key.
• Set the key back, making sure the latches are in place.

7.Reverse Assembly: How to Avoid Errors

Getting the Xiaomi Notebook 9 back together is often harder than making sense of it, and here are the key points to look out for:

• 🔩 Screws: make sure they're all screwed into their places. Rotors of different lengths shouldn't be confused - too long a screw can pierce the motherboard!
• 🔌 Trains: check that all the plumes (battery, keyboard, touchpad, display) are connected tightly.
• 📏 Gaps: If the lid does not fit tightly after assembly, check if a foreign object has got inside (for example, a forgotten screw).
• 🔋 Battery: before the first turn on, connect the laptop to charging - this will help avoid problems with the power controller.

Post-assembly check:

1. Turn on your laptop and check if the keyboard and touchpad are determined.
2. Run a stress test (for example, AIDA64) Make sure the temperature is normal.
3. Check the operation of all ports (USB, HDMI, 3.5 mm).

If the laptop does not turn on after assembly:

• Check the connection of the battery and power supply.
• Make sure that the RAM (if removed) is inserted before clicking.
• Drop it. BIOS, Remove the battery on the motherboard for 10 seconds (if available).

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If after assembly the laptop turns on, but does not boot - check if the hard drive is disabled (SSD). In Xiaomi Notebook 9, it can leave the slot with a careless build.

8.Typical problems after disassembly and their solution

Even if you followed the instructions, after disassembling the Xiaomi Notebook 9, you may have problems, and here are the most common ones and how to fix them:

If the problem is not solved, it is possible that the components were damaged during the dismantling, in which case it is better to contact the service center, for example, replacing the south bridge or video card at home is almost impossible without special equipment.

⚠️ Note: If after disassembly, the laptop began to turn off on its own through 5-10 Minutes of operation, this may indicate damage to the thermal sensor or power controller. Do not ignore this symptom - prolonged work in this mode can lead to burnout of the motherboard.

FAQ: Frequent questions about the dismantling of Xiaomi Notebook 9