Disassembly Xiaomi Redmi Note 5 at home: a step-by-step guide with improvised means

Xiaomi Redmi Note 5

2018

hull-breaking

In fact, you can actually disassemble the Redmi Note 5 without the tools you need, using tools you can use, like plastic cards, paper clips, or even nails (although we don't recommend the latter option), the main thing is to know the sequence of actions, understand the weaknesses of the design and avoid typical errors. In this article, we will discuss the entire process, from preparation to assembly, taking into account the nuances of this model.

⚠️ Warning: If your smartphone is warranty-free, disassembling it yourself will invalidate it. Also remember that doing the wrong thing can cause plumes to break, touchscreen to detach, or even short circuit. If you're not sure about yourself, you better contact the service center.

Preparation for disassembly: what will be needed from available means

Before you start, make sure you have everything you need, unlike professional craftsmen who use plastic spatulas, suction cups and screwdrivers. T3-T5, We'll do what we have on hand. Here's the minimum set:

• 💳 Plastic card (bank, discount or even SIM-card in the slot) - for putting the cover.
• 📎 Paperclip or stationery pin - for removing the tray SIM-maps and slacks.
• 🧲 Magnet (such as from the refrigerator) – will help hold the screws if they fall out.
• 📱 Hair dryer or warm air (not necessary) – to soften the glue under the back cover.
• 📦 Container for screws (match boxes, saucer) - so as not to lose small details.

Also, prepare a clean workspace with good lighting. It is advisable to cover the table with a soft cloth so as not to scratch the case or screen. If you have a magnifying glass or table lamp with a magnification, this is a plus, as some of the plumes and connectors in the Redmi Note 5 are very small.

⚠️ Warning: Do not use metal screwdrivers or knives to lid the lid! They can leave scratches on the plastic or damage the internal components. Also avoid heavy heat with a hairdryer - temperatures above 60°C can deform plastic or damage the battery.

Step 1: Removing the tray SIM-card and back cover

The first step is to remove the back cover. In the Xiaomi Redmi Note 5, it's mounted on latches and double-sided tape, so the main task is to carefully separate it without breaking the plastic clamps. Start by removing the tray. SIM-map:

1. Turn off the phone and take out the tray. SIM-cards with a paper clip (insert it in the hole next to the slot).
2. Place the device with the screen down on a soft surface.
3. Heat the back cover with a hairdryer (if any) during 1-2 It'll soften the glue for minutes at minimum power.
4. Insert the plastic card into the gap between the lid and the case (start with the lower right corner where the speaker is located).
5. Carefully map along the perimeter, alternately snapping the locks, you will hear the characteristic clicks.

If the lid doesn't lend itself, don't put too much effort into it -- you better warm it up with a hair dryer again. Redmi Note 5 has particularly fragile latches near the camera and charging connector, so be careful.

⚠️ Warning: If you feel resistance in the battery area, do not force the lid off - a fingerprint plume may be glued under it (if your model is equipped with one), in which case it is better to lift the lid on one side and see what is preventing it.

Step 2: Disconnect the battery and plumes

Once you remove the lid, you'll see the insides of the smartphone, and the first thing you need to do is turn off the battery to avoid short circuits. In the Redmi Note 5, the battery is glued, but you don't have to take it off completely, you just have to disconnect the connector.

• 🔋 Find the black battery connector (located at the top of the board, next to the camera).
• 👆 Carefully tuck it with a plastic card or nail (not metal!) and unplug it.
• 📶 Turn off the display and touch screen plumes (they are located under the metal cover in the center of the board:

In Redmi Note 5, the plumes are very fragile, so don't pull them by the wires - just take the plastic connectors. If the plume doesn't come out, check if it's clamped with a latch (sometimes they're almost invisible).

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If you're afraid of damaging the plumes, take a picture of their location before disconnecting, which will help you connect them back to the correct assembly.

Step 3: Withdrawal of motherboard and access to internal components

Once the battery and plumes are turned off, you can start removing the motherboard. 5 it's attached to 10-12 There are different sizes of screws, so it's important to remember which screw is being twisted from where.

Algorithm of action:

1. Unscrew all screws around the perimeter of the board (use a paper clip or plastic card if there is no screwdriver).
2. So, you can gently raise the board on one side, and it can stick to the heatpaste on the processor -- don't pull it so hard.
3. Disconnect the remaining plumes (for example, a vibration motor or charging connector).
4. Completely remove the board and put it on an antistatic surface (for example, on a smartphone box).

You now have access to all the internal components:

• 🔊 Speaker and microphone (located at the bottom of the microphone).
• 📷 Main and front cameras (mounted on screws or glue).
• 🔋 Battery (stick, to replace it will need to disconnect completely).
• 🖥️ Memory slot (if you plan to upgrade).

⚠️ Warning: If you're disassembling a battery replacement phone, be careful -- the Redmi Note 5 battery is glued to a double-sided high-strength tape. Don't try to tear it off by force -- use a plastic spatula and isopropyl alcohol to soften the glue.

Step 4: Replace the battery (Step-by-step)

One of the most common reasons for disassembling the Redmi Note 5 is to replace the battery. Over time, the battery capacity decreases, the phone quickly discharges or suddenly turns off, and you can buy a new battery on AliExpress, service centers or parts stores (costs from 800 to 1500 rubles in 2026).

Instructions for replacement:

1. When you take off the motherboard, you'll see the battery glued to the body, and you'll put it on a plastic card from any angle.
2. Carefully pull the black tape (pull-tab), which is under the battery. If it is not, use isopropyl alcohol (drip under the battery to dissolve the glue).
3. After removing the old battery, clean the installation site of glue residues (you can use alcohol and cotton swab).
4. Install a new battery, making sure the connector matches the original one, and glue it to a new double-sided tape (usually included).
5. Connect the battery connector to the board and check that the phone is on (without connecting the screen).

⚠️ Warning: If the phone doesn't turn on after battery replacement, check:

• Is the battery connector properly connected?
• Is the charge damaged (see for darkening or bloating).
• Are the contacts closed (sometimes glue residues or metal dust can cause a circuit).

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New battery for Redmi Note 5 should have a capacity of 4000 mAh and voltage 3.85V. Batteries with other parameters may not fit or shorten the life of the device.

Step 5: Cleaning of dust and diagnostics of components

If you have disassembled your phone for preventive cleaning, pay attention to the following areas:

• 🌀 Ventilation holes speaker and microphone – often clogged with dust, which worsens the sound.
• 📱 Charging connector – oxidation of contacts can lead to poor contact and slow charging.
• 🔥 Processor and memory chips - dust on them worsens heat sink, which leads to overheating.
• 📷 Camera lenses – Pollution can degrade photo quality.

Use:

• Soft brush (for example, for drawing) - to remove dust.
• Cotton swabs dipped in isopropyl alcohol (at least 90%) - for cleaning contacts.
• Compressed air (cylinder) - to blow dust from hard-to-reach places.

⚠️ Warning: Do not use water, household alcohol or acetone - these can damage the board or connectors. Also avoid metal cleaning items - they can scratch components.

After cleaning, let the parts dry. 10-15 If you notice bloated capacitors, a darkened board or broken tracks, these are signs of serious problems, and you should show the phone to a specialist.

Step 6: Build your phone and check its health

The Xiaomi Redmi Note 5 is assembled in reverse order, but with some nuances:

1. Make sure all the plumes are connected correctly (check the photos if you have taken them before).
2. Secure the motherboard with screws, starting with corner ones (they are usually longer).
3. Connect the battery and turn on the phone for a short time (without the lid) to check that everything is working.
4. Install the back cover starting at the top edge (where the camera is) and gently snap it around the perimeter.
5. Put the tray in. SIM-Cards and turn on the phone for a full check.

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If the screen doesn't respond to touch after assembly, check the touchscreen plume, which is often loosely connected or upside down.

If the phone is not switched on:

• Check if the battery is connected.
• Make sure the power button is properly installed (sometimes it falls out when disassembling).
• Check if the contacts are closed on the board (look for foreign objects).

If everything works, but there are foreign sounds (for example, creaking when you press the screen), then the lid is not tight, in which case, disassemble the phone and repeat the assembly, paying attention to the latches.

Frequent Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when disassembling the Redmi Note 5, and here are the most common ones and ways to prevent them:

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If you are not sure of your abilities, practice on an old, unnecessary phone before disassembling the Redmi Note 5. This will help you understand the principle of mounting latches and avoid errors.

FAQ: Answers to Frequent Questions