How to disconnect the screen from the Xiaomi phone: step-by-step repair

Modern Xiaomi smartphones are stylishly designed and highly productive, but their design often involves the use of adhesives to fix the display module. The situation when you need to disconnect the screen, not only when you break the glass, but also when you replace the battery or repair the charging plumes. Disconnecting the display is a delicate procedure that requires patience, special tools and strict adherence to safety.

Inexperienced users often underestimate the risks associated with mechanical impact on the device body. Damage to the plume or careless handling of the adhesive base can cause the phone to stop responding to touch or stop turning on altogether. In this article, we will discuss in detail how to properly prepare the device, what tools will be required and how to safely separate the matrix from the frame, keeping the gadget working.

Before starting to disassemble, you need to clearly understand the architecture of your smartphone. The Redmi Note and Mi series models can have differences in the location of screws and plumes. The lithium polymer battery that is under the screen is sensitive to punctures, so any manipulations should be carried out with the utmost care. Ignoring safety rules can lead to battery fire or bloating of the battery.

⚠️ Warning: Before starting any work, be sure to turn off the smartphone. Attempting to disconnect the display plume under voltage can lead to a short circuit on the board and the power controller fails.

Tools and workplace preparation required

To unplug the screen from Xiaomi, you will need a specialized kit that minimizes the risk of damage. The use of kitchen knives or stationery blades is strongly discouraged, as they can damage internal components or shatter glass.

First of all, you need to provide good lighting and clean surface. Small screws are easily lost, and dust trapped under the matrix will create unswept spots. The heating element is a key tool for softening the glue that holds the display module.

• 🔧 Precision screwdriver kit (cross-hatch) P2, P5) hull-screw.
• 🌡️ Thermophen or heating pad for smartphones (heating temperature) 80-100°C).
• 💳 Plastic cards, mediators or blades for opening the body without scratches.
• 🧲 Magnetic mat or organizer for sorting screws of different sizes.
• 🧤 Antistatic gloves to protect electronics from static electricity.

Special attention should be paid to the choice of suction cups. For modern models with narrow frames, it is better to use suction cups with a thin edge or special metal handles with adhesive base. A thin string (nichrome or guitar) is often used by professionals to carefully cut the adhesive layer around the perimeter.

If you don't have a thermophen, you can use a regular hair dryer, although it will take longer. OLED-Control the heating temperature by periodically touching the surface with your hand.

Removing the back cover and protecting the battery

Most modern Xiaomi smartphones have a glass or plastic back cover glued around the perimeter. SIM-We're going to use the cards to keep the device ventilated and prevent accidental switching on, and then we're going to turn on the heat and evenly heat the perimeter of the device over the course of the day. 3-5 minute.

After warming up, insert a plastic blade or mediator into the junction between the frame and the back cover. Move the tool along the perimeter, gradually peeling off the lid. Don't try to fit the lid in one place - the glue should go away evenly. If you feel strong resistance, repeat the heating.

When you take the lid off, you'll see a protective plate covering the charging module's plumes and screws, and it's also attached to glue or screws. Carefully remove this plate to access the insides, and you'll now have access to the battery and the bottom plumes.

Disconnection of plumes and removal of protective plates

This is the most critical stage where fatal errors occur most often. There are many connectors on the motherboard, and it is important not to confuse the display plume with the touchscreen or sensors. Before touching any connectors, you need to turn off the smartphone by turning off the battery connector.

Use a plastic blade or a gloved finger to snap connectors. You can't use metal tools here, you can close contacts on the board. Once the battery is turned off, you can carefully remove the metal shielding plates that press the display plumes.

Note the location of the screws. In different Xiaomi models (such as the Redmi Note 9 Pro or Mi 11), the length of the screws may differ. Swirling a long screw into a short hole can pierce the board through, leading to expensive repairs.

⚠️ Attention: Never pull the plume itself! You need to disconnect the connector by putting it on special thickened edges or using a plastic filmmaker, moving strictly vertically upwards.

Technology of separation of display from frame

Once all the plumes are off and the screws of the fastener are twisted, the display module is still firmly glued to the middle frame. Here again you will need heating. Put the smartphone screen up on a warm surface (heater) or gently warm the front part with a thermophen, constantly moving it, so as not to create a local overheating.

You use a thin string or a line to separate, and you take the string to the top corner (usually there's a small gap or a hole for the speaker) and you take smooth sawing movements and you walk around the perimeter, and the glue becomes elastic when you're exposed to temperature, and you can separate the glass.

Don't use force. If the screen doesn't move away, it means that the glue is not warm enough or you missed the area. Continued effort will lead to cracks in the matrix. In some Xiaomi models, there are plumes under the screen to the buttons or the fingerprint scanner - be careful when you pass the bottom part.

Cleaning the frame and installing a new module

After successfully dismantling the old screen, the remnants of glue and broken glass remain on the frame. Clean the surface carefully using isopropyl alcohol and plastic scraper. The surface must be perfectly smooth, otherwise the new screen will lie unevenly or peel off.

To fix the new module, use a special glue B-7000 or E-8000, or a pre-painted double-sided adhesive tape (3M). Apply a thin strip of glue along the perimeter of the frame, avoiding hitting the center where the components are located. Let the glue dry a little (2-3 minutes) before pressing the screen.

Set the module neatly aligned with the edges. Don't push the center of the screen, you just need to press around the perimeter. Then plug the plumes in reverse sequence: first the battery, then test run, and only after checking the work - the final assembly.

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Use rubber harnesses or stationery gums to tightly press the screen against the frame while the glue dries. Leave the structure for 1-2 hours for full polymerization of the adhesive compound.

Frequent errors and precautions

The most common mistake is rushing, trying to quickly tear off the screen without proper warming up leads to chips and cracks, and beginners often forget to turn off the battery before working with other plumes, which causes a short circuit.

Another problem is the use of aggressive cleaning fluids. Acetone or solvents can damage the plastic elements of the case or the oleophobic coating of the surviving parts of the screen. Use only isopropyl alcohol.

When you build it, it's important not to squeeze the plumes. If the display plume is laid with a bend or transmitted by a metal plate, stripes or artifacts may appear on the screen. Make sure all the connectors are snapped to a characteristic click.

⚠️ Warning: If the screen doesn't light up after assembly, don't panic. Check the density of the connectors. Sometimes you need to turn off the battery on the battery. 5-10 minutes to reset the power controller.

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The secret to success is to heat the glue properly and to turn off the plumes neatly without the use of force, and patience keeps your budget and your nerves going.

Questions and Answers (FAQ)