How to disassemble Xiaomi Poco M3: safe disassembly of the smartphone with your own hands

Xiaomi Poco M3 is a popular budget smartphone with great value for money, but even it is not immune to breakdowns. Disassembly of the device may be necessary to replace the battery, repair the display or clean the dust. However, the wrong actions can turn the device into a “brick.” In this article, step-by-step instructions with a photo, a list of necessary tools and critical nuances that are silent in most guides.

The Poco M3 has its own features: it doesn't have the classic latches of flagships, but it's not as simple as the old monoblocks, like the back cover is glued around the perimeter, and the battery plume is easily damaged if you take it off sloppyly, and we'll take it from A to Z, from the workplace to the assembly back, so you don't have to deal with typical novice errors.

Preparation for disassembly: tools and security measures

Before you start a screwdriver, make sure you have everything you need. Disassembling the Xiaomi Poco M3 requires not only patience, but also special devices.

• 🔧 Plastic blades (2-3 (a) - for separation of the body without scratches.
• 🔩 The screwdriver (PH00 or PH0) — motherboard screw.
• 🧲 Magnetic mat or container – to avoid losing small details.
• 🔥 Dryer or thermo-air station - for softening the glue (temperature not higher than 80)°C!).
• 📱 Suction - will help to squeez the back cover.
• 🧴 Isopropyl alcohol (90%+) — Cleaning contacts and removing glue residues.

Important: don't use metal tools to split the body, they leave microcracks on the plastic. If you don't have experience, practice on an old smartphone or watch a Poco M3 video disassembly on YouTube to understand how the latches are located.

⚠️ Warning: Disassembly voids Xiaomi warranty.If your Poco M3 for guarantees, contact the service center - self-repair will deprive you of the right to free service.

Step 1: Turn off and remove the back cover

The first stage is the most important one, and if you take the lid off incorrectly, you can damage the plumes or tear off the antenna contacts.

1. Turn off your smartphone and remove it. SIM-cards from the tray (use a paper clip or a special key).
2. Heat the back cover with a hair dryer around the perimeter for 2-3 minutes. Keep the device at a distance of 10-15 cm so as not to overheat the battery.
3. Suction the lid on the bottom edge (near the USB-C connector). If the suction cup is not holding, try heating again.
4. Insert a plastic blade into the gap and carefully guide it along the body, separating the glue. Don't push too hard - there may be fragile elements inside!

The Poco M3 has a glue-only lid attached to it, but it also has small plastic latches on the sides, and if you feel resistance, warm up the problem area again, but take your time, and it takes 10-15 minutes for a beginner to unpack the lid.

Step 2: Shutting down the battery – why it’s critical

Once the lid is removed, the first thing to do is to disconnect the battery, which is not just a recommendation, but a safety rule, and even a smartphone that is turned off can get a short circuit when it accidentally touches the motherboard.

The battery in the Poco M3 is glued, but its power plume is covered with a black protective film. Carefully tuck it in with a spatula and unplug the connector by pulling the tongue (not the wires!). If the glue is too sticky, drop some isopropyl alcohol under the battery and wait 1-2 minutes.

⚠️ Warning: Do not use sharp objects to smack the battery plume. Damage to contacts will lead to inability to charge or sudden shutdown of the smartphone.

If you are planning to replace the battery, remember: the Poco M3 uses a BM47 model with a capacity of 6000 mAh. Buy only original or certified counterparts - cheap fakes can swell or ignite.

Step 3: Removing the motherboard and other components

Once the battery is turned off, you can start dismantling the motherboard. In the Poco M3, it is mounted on 12 screws of different lengths — remember or photograph their location so you don't get confused when you build it. Use a magnetic screwdriver so that the screws don't get lost.

Procedure:

1. Unscrew all the screws (start with the longest on the camera).
2. Disconnect the plumes: display, cameras, power and volume buttons (they are fixed with latches - lift them with a spatula).
3. Carefully raise the cost over the edge. If it doesn't go, check if all the screws are unscrewed.

Underneath the motherboard are the speaker, the vibrator and the antenna modules, which can be removed, but you better not touch them, because they are fragile and easily break when you handle them sloppy.

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If the screws don't unscrew, don't force -- you probably don't have the right size for a screwdriver. Electronics stores sell sets with PH00, PH0 and T3 bits, which are suitable for 90% of Xiaomi smartphones.

Step 4: Disassemble the front panel and display

Poco display M3 It's glued to a frame, and replacing it is one of the most difficult operations. OLED-You better trust the professionals, but if you do, here's what you need to know:

• 🔥 The display module includes a sensor, a screen and a frame, and you can't separate them without special equipment.
• 💧 Use a thin line to peel off (0.1-0.15 mm), soaked in isopropyl alcohol, and swipe it between the screen and the frame, gradually warming the hair dryer.
• ⚡ The display plume is very fragile. Don't bend it at an angle of more than 90.°.

The cost of the original display module for the Poco M3 is from 3,000 to 5,000 rubles (2026), cheap counterparts often have problems with color reproduction or multi-touch, so the savings here are questionable.

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If the screen is broken, but the sensor is working, you can use a smartphone with a protective film temporarily, but remember, shards of glass can damage your fingers or plumes when you disassemble.

Common Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Xiaomi Poco M3, and here are the most common ones and ways to prevent them:

1. The reason is the wrong screwdriver or too much effort, so you use high-quality bits and unscrew the screws cross-over.
2. Battery plume damage, often when you try to pull it off without disconnecting the connector, solution: always turn off the power first.
3. Overheating components. A dryer pointed at one site for more than 5 minutes can melt plastic parts. Solution: heat evenly, pause.
4. Loss of screws. Poco M3 screws are small and easily lost. Solution: use a magnetic mat or put double-sided tape on the table.

Another common problem is the wrong build, for example, if you forget to plug in the power button plume, the smartphone won't turn on, but the screen may show charging, and always check all connections before final assembly.

Build a smartphone: reverse order and testing

The Xiaomi Poco M3 should be assembled in reverse order, but with some nuances:

1. Before installing the battery, clean the contacts of the power connector with alcohol.
2. Screw screws in the same order in which you unscrewed, but not to the end - first slightly "make" everything, then tighten.
3. Before sticking the back cover, make sure all plumes are connected and not clamped.

After assembly, turn on the smartphone and check:

• 📶 Network operation (SIM-maps, Wi-Fi, Bluetooth).
• 🔊 Sound in the speaker and microphone.
• 📸 Cameras (main and front).
• 🔋 Charging (plug the charger and make sure the current is going on).

If something doesn't work, take your smartphone apart again and check the connections, and most often, problems are caused by poorly connected plumes or forgotten screws.

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After replacing the battery or display, the smartphone may require recalibration of the battery. To do this, completely discharge and charge it 2-3 times in a row.

FAQ: Frequent questions about the Poco M3 disassembly