How to disassemble Xiaomi Redmi Note 5: the complete guide

Modern smartphones such as the Xiaomi Redmi Note 5 are characterized by high density of internal components, which greatly complicates the process of their maintenance. The model, also known under the code name Redmi 5 Plus or Whyred, has a metal body, which is both a frame and a design element, but creates serious obstacles when trying to access the insides. Disassembling this device requires not only special tools, but also a certain amount of patience, since the manufacturer actively uses glue to fix the modules.

The challenge is that the back cover is not removable in the conventional sense, as in budget models with a plastic case, it is glued around the perimeter, and any careless movement can lead to chips or cracks on the metal. Before proceeding with the procedure, you need to be clear about the risks: self-disassembly automatically deprives the owner of the right to warranty service in authorized centers.

In this article, we will take a closer look at the dismantling process, replace basic supplies, and answer frequent questions: What tools are needed to safely handle aluminum alloys and how to avoid damaging plumes when disengaging modules. Ready to work hard is the first step to successful repairs.

And it's important to note that inside a smartphone, there are many microscopic screws of different lengths, and if you confuse them with places when you build them, you can damage the thread or even penetrate the motherboard right through, so organizing the workspace is a critical step.

Tools and workplace preparation required

Good preparation for disassembly is the key to the success and safety of your device. To work with the Redmi Note 5, you will need a specific set of tools, since standard home remedies may not be enough. The metal case requires careful warming up, and the screws have fine threads, easily damaged by poor-quality screwdrivers.

First of all, you need to get a heat source. The best solution is a professional thermophene, but at home you can use a regular hair dryer, although the process will take longer, and you will need a suction cup to lift the lid, a mediator or a thin plastic card to snap the latches.

• 🔧 A set of precision screwdrivers (mandatory presence of bits Phillips #00 and Y000).
• 🔥 A hair dryer or thermophen to soften glue.
• 💳 Plastic blade or mediator (metal tools are prohibited from being used).
• 🧲 Magnetic mat or organizer for sorting screws.
• 🧤 Antistatic gloves (optional, but desirable).

Special attention should be paid to the screwdriver with bits. screws in Xiaomi are often tightened quite a lot, and the use of soft steel can lead to the licking of the hats. If this happens, it will be extremely difficult to remove the screw without drilling. It is also recommended to prepare tweezers with curved ends for working with small plumes.

⚠️ Warning: Never use metal blades or knives to tuck in the back cover. Metal on metal will inevitably cause scratches on the frame and can damage antenna lines located under decorative inserts.

Before any manipulations, make sure that the smartphone is turned off. If the battery is bloated, it is strictly forbidden to heat the device with a hair dryer, as this can lead to a fire of the lithium electrolyte. In such cases, heating should be minimized or abandoned in favor of mechanical detachment with extreme caution.

Removal of the back cover and dismantling of the frame

The most important step is to separate the back from the main frame. The glue used by the manufacturer hardens over time, so high-quality heating is a must. Heat the perimeter of the device evenly, paying special attention to the corners and top, where the glue layer is usually thicker.

Once the body warms to about 60-70 degrees (the arm should be hot but tolerant), apply a suction cup at the bottom of the back cover. Pull the suction cup up, creating a gap, and gently insert a plastic card or mediator into the resulting gap. Don't immediately try to separate the lid completely.

Driving the tool along the perimeter, gradually cutting through the adhesive layer. Move slowly, feeling resistance. If the tool is tight, add a little more heat. Sharp jerks can lead to deformation of the metal or rupture of plumes that can be glued to the lid in rare modifications.

• 🌡️ Warm up the hull. 2-3 minutes, constantly moving the hair dryer.
• 👐 Create a tension with a sucker so that the glue begins to stretch.
• 🪙 Insert the mediator and lead it parallel to the plane of the smartphone.
• ⚠️ Be careful in the area of the camera module, there the glue can hold tighter.

Once you successfully remove the lid, you will see an internal metal frame that closes access to the motherboard and battery, and this frame is mounted with a lot of screws around the perimeter and in the center, and you will need to unscrew all the visible screws, including those hidden under stickers or plugs.

⚠️ Attention: At the bottom of the frame may be screws hidden under decorative elements or antenna inserts. Carefully inspect the surface before using force, so as not to break the plastic elements.

When all the screws are twisted, take your time to remove the frame. Check if any plumes are moving away from it, such as from volume buttons or on buttons that can be integrated into the side frame. Carefully lift the frame from one of the corners using a suction cup or plastic blade.

Disconnecting the battery and dismantling the motherboard

Once you have access to the insides of the Redmi Note 5, the first thing you need to do is turn off the device. Find the battery connector on the motherboard and gently unplug it. Use a plastic blade or nail to do this, putting the connector up from the bottom, but don't pull the wires.

Only after the battery is turned off can the motherboard be disassembled, and it's locked in multiple screws and pressed by metal clamping plates, which protect the connectors of the display and other modules from accidental disconnection and shield the RF interference.

Carefully unscrew the screws holding the clamping slats and remove them by folding them into a separate container. Then unplug the plumes of the display, touchscreen and main camera module. Xiaomi plumes often have plastic clamps that need to bend before removing the connector.

Once all the plumes are turned off, the motherboard should be freely removed from the housing. Raise it vertically upwards, avoiding grazing the other components. Notice the auditory speaker, which can be mounted on the board itself or separately at the top of the housing.

Replacement of the battery and lower charge board

Often, the Redmi Note 5 is disassembled to replace a failed battery, and the battery in this model is glued to the body with double-sided tape. Removing it will again require heating the back of the device (if only the frame is removed) or tidying the element.

Under no circumstances do you try to pick out the battery with a screwdriver by piercing it. Damage to the lithium polymer battery shell will cause it to ignite or burn chemically. Use the plastic card, pushing it under the battery, while warming the area under the battery a little.

After removing the old battery, clean the surface of the case of glue residues. The new battery is also recommended to equip a layer of double-sided tape for reliable fixation, since the backlash of the battery inside the case is unacceptable and can damage the plumes.

• 🔋 Heat the battery area to soften the glue.
• 💳 Filtrate the battery with a plastic card, not metal objects.
• 🧹 Cleanse the seat of old glue with alcohol.
• 🩹 Stick a new two-way Scotch on a fresh battery.

In parallel with the replacement of the battery, the lower charge board (sub-board) is often changed, where the Micro-USB or Type-C connector is located (depending on the revision, although in the Note 5 it is more often Micro-USB), this board is attached to several screws and connected to the motherboard with a long plume running along the case.

When installing a new charging board, make sure the contact pads are clean. Also check the status of the main plume connecting the top and bottom of the smartphone. If it has clamps or scuffs, it is better to replace it, as this can cause problems with signal or charging.

⚠️ Warning: When installing the battery, make sure the connector is properly connected. An inverted or skewed connector can short circuit and burn the power controller on the motherboard.

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Use isopropyl alcohol to remove glue residues, which evaporates quickly and does not conduct electricity, which is safe for electronics.

Assembly of the device and verification of functionality

The Xiaomi Redmi Note 5 is built in reverse order, but requires even more care. The main task is to remember to connect all the plumes before the final installation of the frames and covers. First install the motherboard, connect the display, touch screen and cameras.

Then plug in the battery connector, and then you can turn on the device for the initial check, press and hold the power button, if the smartphone is on, check the touchscreen, the cameras, the microphone and the speaker, make sure that the device sees the charge.

If all systems are working correctly, turn off the phone and continue building. Put all the press plates in place and twist the screws. Then put the plumes in your ducts and press them with metal brackets if they are designed.

The final step is to install a metal frame and stick the back cover. Use a special adhesive sealant (such as the B-7000) or ready-made adhesive frames, which are sold in parts stores, apply the glue thinly, press the lid and lock the device with rubber bands for 15-20 minutes.

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Checking the operability before full assembly saves time and nerves, allowing you to immediately detect an unconnected plume or defect in the spare part.

Typical mistakes and expert advice

Disassembling Xiaomi smartphones involves a number of common mistakes that beginners make. One of the most common is using excessive force when spinning screws or snapping latches. The plastic inside the smartphone is fragile, and one wrong move can break the mount.

Another common problem is the loss of small screws or the confusion of their places. As mentioned earlier, screws of different lengths can damage the board. To avoid this, use a magnetic mat with a markup or draw a diagram of the screws on paper, gluing each screw in its place.

Also, users often forget to remove the protective film from a new battery or screen, a common but critical error that causes the device to fail or the sensor to fail, and always check for safety stickers that say "Remove before use."

• 🚫 Do not heat the device too much so as not to damage it. OLED-matrix (if any) or glue inside the display.
• 🔍 Use a magnifier or macro shot of your phone to control small details.
• 🧤 Work in antistatic gloves to avoid leaving greasy marks and static charge.
• 📸 Take photos at each stage of the disassembly to remember the order of action.

Compliance with these simple rules will allow you to successfully cope with the repair of the Redmi Note 5 and extend the life of your gadget.