Broken glass or unresponsive touchscreen is a common problem faced by owners of budget smartphones. Xiaomi Redmi 4X model was no exception, and despite its reliability, mechanical damage can bring the device down. Self-replacement module saves a significant amount of money that would have to pay in the service center, but requires accuracy and understanding of the device gadget.
The process of replacing the display module involves dismantling the old panel, cleaning the frame of glue residues and installing a new glass with a touchscreen. It is important to understand that in modern smartphones the screen is often assembled with a frame, which makes it easier to do, but in the case of Redmi 4X, the module itself that is glued to the metal body is most often changed. Before starting work, you need to make sure that you have all the necessary tools and a spare part.
In this article, we will take a closer look at each stage of the repair, focusing on the nuances of turning off the plumes and applying the glue correctly. Replacing the screen with a Redmi 4X requires preheating the case to 80-90 degrees to soften the factory adhesive. If you are willing to act carefully and consistently, restoring the functionality of your device is quite feasible at home.
Tools and workplace preparation required
The success of the operation depends on the quality of preparation. You will need not only a new screen, but also a specialized tool, without which disassembly can turn into torture or damage other components.
Special attention should be paid to the organization of lighting. Small screws and fragile plumes require good visibility, so the workplace should be well lit, and it is also recommended to use an antistatic mat or just a clean, dry surface covered with white paper, so as not to lose small parts.
☑️ Repair tools
To work, you will need the following tools:
- 🔥 Heating element: hair dryer, heat heater or special heating pad for disassembling smartphones.
- 🔧 A set of precision screwdrivers: the presence of cross bits of size is required PH000 and PH00.
- 🛠 Plastic mediator: necessary for snapping latches without scratches.
- 🧲 Magnetic mat or organizer: for sorting screws of different sizes.
- 🧴 Adhesive composition: transparent glue B-7000 or T-7000 fixation.
⚠️ Attention: Using a metal blade to tamper with the screen can damage the battery and ignite it.Always start with plastic tools.
Dismantling of the back cover and battery
Unlike many modern models, the Redmi 4X has a removable back cover, which makes it much easier to access the insides. However, to get to the display plumes, you will have to remove the battery and metal frame that covers the motherboard. This is a critical step, since sloppy handling of the battery is dangerous.
Remove it first. SIM-So you can then gently tuck the back plastic panel with your fingers or mediator around the perimeter, and it's held on latches that break easily under high pressure, so you can do it without jerking. After removing the lid, you will see the battery and the lower part of the body.
Before you turn off any plumes, you need to turn off the device, you need to disconnect the battery connector from the motherboard, carefully tuck the connector with a plastic blade, avoiding the use of metal objects that can cause a short circuit on the board.
Then you take the battery out. In the Redmi 4X, it's not stuck to the dead, it's held in a niche, but it can be fixed with double-sided tape, pull the tongue, or gently tuck the battery into the mediator, and once the battery is removed, you can access a metal screen that covers the main components.
Removal of the metal frame and disconnection of plumes
The metal frame that covers the motherboard and the display connection is mounted with many screws of different sizes, and they can be as many as 10-12 pieces, and they are located around the perimeter of the board and in the center, and it is easy to make a mistake here, so it is better to take photos of each stage or use a magnetic mat with markings.
After you twist all the visible screws, the frame needs to be gently raised, it can sit tight because of glue residues or a tight fit, use a suction cup or a thin mediator to evenly lift the metal around the edges, do not pull sharply, as the frame may be glued to the plumes or antenna wires.
When the frame is removed, you'll see the motherboard and the display module plug in, and the screen plume is usually at the bottom of the board or side, depending on the revision, and it's covered by a metal press-down plate, and you'll also need to unscrew that plate to access the connector.
- 📸 Take a photo of the location of the screws before removing them.
- 🔌 Turn off the battery plume first to turn off the phone.
- 🧩 Remove the pressing plate above the display plume before it is turned off.
⚠️ Warning: The plumes are very fragile. Never pull the plume, just the thickened part of the connector. Damage to the tracks will cause the touchscreen or the image to fail.
Nuances shutdowns of the plume
Heating and removing the old display module
The most difficult step is to separate the broken screen from the metal body. In Xiaomi Redmi 4X module is glued around the perimeter with a special composition that hardens when cooled. To remove the screen, it must be heated to the softening temperature of the glue, but not overheat the matrix if it is intact, or plastic elements.
Use a building dryer with a temperature of about 100-120 degrees, or a special heating pad. Warm up the front of the smartphone evenly for 3-5 minutes. Periodically check the softness of the glue, trying to slightly tamper with the edge of the screen with a mediator. If you feel resistance, warm further.
After sufficient warming, insert a mediator or thin line into the gap between the screen and the frame. Move the tool along the perimeter, cutting the adhesive layer. Move slowly, trying not to damage the side edges of the frame and not to break the plume if it is still connected (although at this stage it should already be turned off).
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If there are button plumes under the screen (in some versions), be extremely careful. In Redmi 4X, the buttons are often on a separate board at the bottom, but it is better to double-check the connection before fully separating the module.
When the adhesive layer is passed around the perimeter, carefully remove the module. If the screen is shattered, you may have to remove the fragments in parts, which increases the risk of damage to the frame, in which case you can use a wide tape tape, pasting it on the surface of the broken glass, so that it does not fall off when heated.
Cleaning the frame and installing a new screen
Once the old module is removed, the glue remains on the metal frame, and must be removed carefully, as the new part must lie flat and tight, and use a plastic blade and solvent (such as isopropyl alcohol) to clean up all the irregularities.
The surface should be perfectly smooth and fat-free. Any grain of sand or piece of old glue will create a bump that can crack the new glass when pressed. After cleaning, wipe the frame with an alcohol napkin and let it dry.
| Work phase | Tool. | Implementation time | Risks. |
|---|---|---|---|
| Heating glue | Fen/Green | 3-5 minutes | Plastic overheating |
| Clearing the frame | Scapula/Salcourt | 5-10 minutes | Scratches on metal |
| Applying glue | Tube B-7000 | 2 minutes | Getting into the speaker |
| Fixation | Rubbers/Cargo | 2-4 hours | Module displacement |
Now, apply the new glue. The best thing to do is use the B-7000 or T-7000, apply a thin strip of glue around the perimeter of the frame, avoiding the speaker, microphone and camera openings, and then the glue will come out and be easily removed.
Install the new display module with a frame. Make sure the plume is free to go in the right direction. Carefully press the screen around the perimeter so that the glue is evenly distributed. Remove the excess glue with a dry wipe or finger until it freezes.
⚠️ Warning: Don't turn on the phone immediately after installation! glue should dry at least 2-4 It is better to leave the device overnight under light load for reliable fixation.
Device assembly and initial start
Once the glue has been grasped (you can check the edges carefully), we begin to assemble. Connect the display plume to the motherboard before the characteristic click. Put the metal plate in place and twist all the screws. Check if there are any extra parts left.
Connect the battery and check the touchscreen and images before the metal frame is finally installed. If everything works correctly, there are no flickers or dead zones, you can continue building. Set the metal frame by twisting all the screws around the perimeter.
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Final performance check before full assembly saves time and nerves, allowing you to fix the problem with the plume immediately, without disassembling the phone again.
Put the battery in a niche, plug it into the board. Make sure the connector sits tight. Then snap the back cover starting at one of the corners and going around the perimeter. SIM-map and turn on the device.
Check the basic features: brightness, color reproduction, multi-touch operation (you can open notes and draw with your fingers). If the sensor responds the same everywhere and the image is not distorted, the replacement can be considered successful. Your Redmi 4X is again as new.