Xiaomi Redmi 4X has earned a reputation for being “unkillable” due to its metal body and long autonomy, but even the most reliable technology requires intervention over time. Most often, owners face the need to replace a failed battery or restore a broken display glass. The process of dismantling the rear panel in this model has its own unique features that distinguish it from most modern gadgets with glass backs.
The main challenge is that the back cover is not a removable element in the usual sense, but is part of an all-metal body, which means that to access the internal components, you need to completely disassemble the device, starting from the screen. Incorrect actions at the initial stage can lead to damage to the plumes or deformation of the frame, so it is important to follow the algorithm clearly.
In this article, we will take a detailed look at how to remove the cover of the Xiaomi Redmi 4X, what tools will be required for safe disassembly and what hidden nuances you should pay attention to. You will learn why this model can not just tamper with a knife and what risks are associated with a violation of the sealability of the factory assembly.
⚠️ Attention: Redmi metal body 4X Removing and installing the panels repeatedly can lead to backlashes and creaks in the structure.
Tools and workplace preparation required
Before you start to physically affect the smartphone, you need to prepare specialized tools. The use of improvised tools such as kitchen knives or thick needles is strictly not recommended, as they can damage the internal plumes or scratch the frame. For quality work, you will need a set of precision screwdrivers and a sucker.
Special attention should be paid to the organization of the workspace. The surface should be smooth, clean and well lit so that small screws do not get lost in the pile of carpet or fabric. Many craftsmen use magnetic mats or special organizers with cells where they fold the fastener in the order of its extraction.
To successfully complete the task of disassembling the body, prepare the following set:
- 🔧 A set of screwdrivers with Phillips (cross) sizes PH000 and PH00.
- 🔥 A hair dryer or heat pack for heating the adhesive layer (temperature near the 80-90°C).
- 💳 Plastic card or mediator for snapping latches.
- 🧲 Magnetic screw holder or sheet of paper marked.
- 🧤 Antistatic gloves to protect electronics from static electricity.
⚠️ Warning: When using a hair dryer, do not overheat the screen. Prolonged exposure to temperatures above 100°C can damage the matrix or detach the polarization layer.
Dismantling of the display module
Unlike many budget smartphones, where the battery is accessed from the back, Redmi 4X The way to the insides is through the front, and it's connected to the whole Unibody structure. SIM-cards, so as not to damage its mechanism when heated or pressure on the body.
Once the tray is removed, soften the adhesive layer that holds the display. Carefully warm the screen perimeter with a hairdryer, evenly spreading the heat. Don't hold the jet of hot air in one place for longer than 2-3 seconds. Once the glue is elastic, use the suction cup to create a small gap between the glass and the frame, and insert a thin plastic blade there.
Move the blade along the perimeter, gradually separating the module, and it's important to be careful here, because the display plume and the touchscreen plume can be short. Don't try to pull the screen away from the body right away. First, you need to access the protective metal plate that covers the connectors.
☑️ Preheating check
When the screen is raised around the perimeter, bend it neatly like a page of a book, and unscrew the screws that hold the metal lining over the connectors. Only after removing this lining can the plumes be disconnected. Now the display module is completely separated, and you have a view of the main components of the board and the battery.
Removal of metal frame and access to board
Once the screen is detached, the main board is visible, closed with additional metal screens and plastic elements. To get to the screws that hold the frame itself (which is the back cover in the context of this model), you need to dismantle a number of components.
First, unscrew all visible screws around the perimeter of the board. Pay attention to screws of different lengths: it is important to remember or fix their location, as screwing a long screw into the hole for a short can break the board or damage the thread. Next, remove the plastic cap located at the top, next to the camera.
Special attention is required around the main camera and flash. Often this is where additional fasteners are hidden. Carefully disconnect the main camera plume and the tail of the side button (fingerprint scanner) if it interferes with further disassembly. In some versions, the scanner can be integrated into the button, in others, have a separate wire.
| Component | Type of attachment | Risk of damage | Tool. |
|---|---|---|---|
| Screen. | Glue + latches | Tall (cracks) | Suction, hair dryer |
| Payment | Screws + plumes | Middle (cliff) | Tweezers, screwdriver. |
| Battery | Adhesive tape | High (fire) | Heat, spatula. |
| plumes | Clamps. | Tall (room) | Plastic. |
Secret screws.
Rear compartment
At this point, most perimeter screws are already twisted and the main board is free, but the metal frame itself (the back cover) is still held on the latches along the side edges and possibly on the remains of the glue in the area of the chamber module, and now the most critical moment comes - the physical separation of the two halves of the case.
Start to snap the frame off the bottom, where there's usually the least amount of electronics, put a plastic mediator in the junction between the front and back, and then you can easily swipe along the side, and you'll hear the characteristic click, which is the plastic locks open, and move in sequence without missing the sections.
It's important to not use excessive force. If the frame is not capable, you missed the screw or didn't completely disconnect the plume that runs through the body. Once again, carefully examine the perimeter and the center. In the Redmi 4X, you often forget to disconnect the antenna module, which can be glued to the inside of the back cover.
⚠️ Attention: The antenna inserts in the plastic parts of the case are very fragile, and if the lid is not removed carefully, they can crack, which will worsen the quality of the signal reception. GSM and wifi.
Battery replacement and assembly
With full access to the insides, you can replace the battery. In the Xiaomi Redmi 4X, the battery is held on two strips of double-sided tape. Removing it will require heating the back wall again (now from the inside) or using a special solution to dissolve the glue. It is forbidden to pull behind the battery by force, which can damage and ignite it.
When installing a new battery, make sure the contact pad is clean and not oxidized. The new battery should fit tightly to the body. If the factory adhesive has lost its properties, use special B-7000 adhesive tapes or analogues, but not superglue, the fumes of which can settle on the camera.
The assembly is reversed. First, the metal frame is snapped, then all the plumes are plugged in (make sure you have a characteristic click of the connectors), the protective metal plate is screwed in, and only after checking all the connections can the display module be glued.
💡
Use isopropyl alcohol to clean the old glue from the frame before sticking the new screen – this will ensure better adhesion and no dust inside.
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The key to a successful build is to take your time gluing the screen. First, assemble all the screws and check the touchscreen and sound while the module is just lying on top.
Frequent errors and precautions
The process of disassembling a smartphone is full of nuances, ignoring which leads to breakdowns. One of the most common mistakes is trying to remove the back cover without first heating the screen. The glue holds very tight when cold, and a jerk can split the matrix.
Another problem is that the screws are lost or confused, the board's screws and the case screws can be lengthy, and screwing a long screw into a short hole will cause the tip to rest in the internal components and damage them when tightened.
Static electricity is also worth remembering: dry air and synthetic clothing contribute to the accumulation of charge, which can disable sensitive electronics, work on an antistatic mat or at least periodically touch a grounded metal object.
- 🚫 Never try to poke metal parts with sharp objects without protection.
- 🚫 Do not leave your phone connected to charging during disassembly.
- 🚫 Avoid getting moisture on the board when using cleaning fluids.