The situation where the screen of Xiaomi Redmi Note 4X is broken, but the display continues to work, is one of the most common problems owners of this popular model. the device is widely known for its reliable Snapdragon 625 processor, however, the protective glass panel often does not withstand falls. Many users wonder whether it is possible to replace only the top layer without affecting the expensive matrix module.
The process of self-replacement of glass requires a certain skill, patience and a specific set of tools. It is not just mechanical disassembly, but delicate work with adhesive bases and fragile components. Restoring the original display saves a significant amount compared to buying a new module assembled, but carries the risk of damaging the matrix completely.
In this article, we will take a closer look at the Redmi Note 4X’s disassembly technology, the methods of separating broken glass from the image, and the process of professional gluing. It is important to understand that the success of the operation depends on the quality of the materials used and compliance with temperature conditions. Below is a comprehensive guide for those who are ready to take responsibility for repairs.
Diagnosis of damage and choice of repair method
The first step in any repair process is a thorough visual and functional diagnosis, and it's important to determine if only the outer layer is damaged or if the matrix is damaged. If there are black spots, stripes, no response to touch, or if the image flickers, then simply replacing the glass will not help — you will need a complete replacement of the display module.
When the touchscreen is perfect and the image is bright and defectless, but the glass is broken, it makes sense to separate, and users often confuse cracks in the glass with damage to the substrate. For accurate diagnosis, turn on your phone and set the brightness to maximum to highlight possible hidden defects. LCD/OLED layer.
- 🔍 Visual inspection: assess the depth of cracks and the presence of chips on the edges of the frame.
- 🖐 Touchscreen test: check the multi-touch operation in all corners of the screen through a special application.
- 🎨 Checking color rendering: make sure there are no broken pixels and uneven backlighting.
⚠️ If the crack passes through the entire screen and hits the connection plumes, the risk of damage to the matrix during dismantling increases to 90%.
The choice of repair method depends on your experience and equipment, you can use a service center that uses a separator to automatically separate layers, or you can perform the procedure manually using a hair dryer. The second option is cheaper, but requires more care when working with temperature.
Essential tools and supplies
The quality of repairs depends on the preparation of the workplace and the availability of a specialized tool. To work with the Redmi Note 4X, you will need not only a standard set of screwdrivers, but also equipment to work with adhesives. Using the wrong tools can damage the case or plastic elements.
The main consumable is the B-7000 or T-7000 adhesives, as well as special OCA (Optical Clear Adhesive) transparent films for final gluing. You can not save on adhesive compounds, since cheap analogues may become cloudy over time or not provide the necessary tightness.
| Tool. | Appointment | Importance |
|---|---|---|
| thermophen | Heating the glue and softening the sealant | Critically. |
| Thin metal spatula | Separation of glass from frame | Tall. |
| Copper string (0.08 mm) | Cutting OCA's adhesive layer | Critically. |
| UV lamp | Polymerization of glue (optional) | Medium |
You'll also need isopropyl alcohol to clean surfaces and lilac-free wipes. Do not use water or household chemicals, as they can leave a divorce or damage electronics if they get inside the case. All tools should be clean and fat-free before work begins.
☑️ Preparation for repairs
Rear cover removal and preparation for disassembly
The Redmi Note 4X has a metal body, which makes the initial disassembly phase easier than the glass rear panels, but to get to the display plumes, you need to remove the back cover and turn off the battery, a safety rule when working with any electronics.
Use a suction cup or a thin plastic blade to plug the lid around the headphone jack or charger. Move around the perimeter, gently snapping plastic latches. Don't use excessive force to avoid breaking the locks, which can be fragile after prolonged use.
When you remove the lid, the first thing you do is unplug the battery plume, and then you gently lift the connector with your nail or an antistatic blade, and then you can unplug the screws that hold the motherboard's protective bar, and they're usually multiple screws of different sizes, so you better sort them by disassembly step.