Xiaomi Redmi Note 4X has proven to be one of the most reliable devices in the budget segment, but even the most resistant devices require intervention over time. Disassembly of this gadget is necessary not only to replace a broken display, but also to install a new battery or clean the speakers from dust. Understanding the internal architecture of the device is the first and most important step to successful repairs, which will avoid fatal errors.
The process of dismantling the Redmi Note 4X has its own technological features that distinguish it from modern monoblocks. Unlike the flagships with moisture protection, it uses a classic build scheme with screws and latches, making the device relatively affordable for self-maintenance. However, rushing can damage the plumes or chips on the body, so be patient and the necessary tools before you start work.
In this article, we will take a closer look at each step, from power outage to motherboard removal. You will learn what nuances the metal frame hides and how to properly unstick the display module without using a professional separator. A competent approach to disassembly will save your money and prolong the life of your favorite gadget.
Preparation of the workplace and necessary tools
Before you start to act, you need to have a comfortable workspace, you need a table with good lighting to distinguish between small screws and carefully tuck in the plumes. The absence of clutters on the table minimizes the risk of losing tiny parts during the process.
For high-quality disassembly Xiaomi Redmi Note 4X you will need a minimum, but mandatory set of tools. Using inappropriate items such as a knife or pin can damage the plastic elements of the case or scratch the aluminum frame.
- 🔧 Set of screwdrivers: mandatory presence of cross PH000 for screws of the body and flat screwdriver for some elements.
- 🎴 Plastic blade (mediator): the main tool for opening the body without damage.
- 🌡️ Dryer or thermophene: Necessary to soften the adhesive holding the display module.
- 🧲 Magnetic mat or organizer: for sorting screws of different sizes, so as not to confuse them when assembling.
Before starting any work, be sure to discharge the battery below 25% to minimize the risk of fire if it is damaged, and it is also recommended to use an antistatic bracelet or periodically touch a grounded metal object to remove static electricity from the body.
⚠️ Warning: Do not use metal tools (tweezers, needles) to slap the plumes or turn off the connectors. Metal can short contacts on the board, which will cause the smartphone to fail.
Extraction SIM-tray and rear-cover dismantling
Start the process of disassembling with the extraction of the tray for SIM-It's standard procedure, but in the case of the Redmi Note. 4X It's important not to lose a small paper clip. Once you take out the tray, you get access to the first screw, which is often hidden inside the hole.
Then you take the back plastic cover off, and in this model, it's mounted on powerful latches around the perimeter, and the best way to start the opening is to start at the bottom end or the side face, gently inserting the plastic blade into the junction between the frame and the lid.
Move around the perimeter, sequentially snapping the locks. Don't try to remove the lid by pulling a corner, the plastic can crack. Once all the latches are free, the lid will be removed with a light motion.
Removal of the battery and protective screens
When you remove the back cover, you'll see the inside of your smartphone, and the first thing you need to do is disconnect the battery plume from the motherboard, which is a critical step to ensure that you're safe.
The battery in the Redmi Note 4X is glued to a frame on double-sided tape. To extract it without damaging the shell, it is recommended to warm up the back of the smartphone with a hairdryer a little.
Use a plastic card or a special suction cup to neatly separate the battery, peel it from different sides, gradually weakening the adhesive clutch, sudden movements can cause a puncture of the battery, which is strictly forbidden.
☑️ Safety when working with the battery
Once the battery is removed, you can access the screws that hold the protective metal plates, they close the connectors of the display, touchscreen and other modules, unscrew all the visible screws, remembering their location, as they may differ in length.
⚠️ Warning: If the battery is swelling, do not press it or try to pierce it. The bloated battery is unstable and can ignite when mechanically exposed.
Disconnection of plumes and removal of the motherboard
The motherboard is the brain of the device, and it requires maximum concentration, and when you take off the metal screens, you'll see the main connectors, which can be pressed on top with additional locks or simply inserted into the connectors.
Use a plastic blade or nail to turn off the plumes. Push the connector upwards, avoiding distortion. Xiaomi plumes are quite fragile, and damage to the tracks on the flexible cable will cause the corresponding module to fail.
After shutting down all communications (display, touchscreen, charging plume, antenna contacts), you can start dismantling the board itself, which is attached with several screws to the metal frame.
- 📱 Carefully raise the fee, starting from one of the corners where there are no components.
- 🔌 Check if any plume caught on the body elements when lifting.
- 👁️ Check the fee for oxides or mechanical damage.
- 🧹 Blow the connectors with compressed air to remove dust.
When installing a new board or returning an old one, make sure all connectors fall into place before the click.Incomplete connection often causes a phone to die after assembly.
Dismantling of the display module and touch screen
Replacing the screen is the most common reason for disassembling the Redmi Note 4X. The display module here is attached to the glue along the perimeter of the metal frame.
Heat the front of the smartphone with a hair dryer to a temperature of about 80-90 degrees. Keep the hair dryer at a distance of 3-5 cm and constantly move it so as not to overheat one point.
Use a thin line, string or a special blade to cut through the glue. The movements must be careful not to damage the display itself (if it is still working) or the frame.
What to do if only the glass is broken?
Once the module is separated from the frame, clean the glue residue from the metal base.A new frame or new base for the screen often comes complete with spare parts, which makes it easier to build.If you change only the glass, the process will be much more complicated and require special equipment.
Comparison of the complexity of repair of different components
Not all parts in the Xiaomi Redmi Note 4X are changed at the same speed and labor costs.Some components require a complete disassembly of the device, while others are available immediately after the lid is removed.
Below is a table that will help you assess the scope of the work ahead and the skill level you need.
| Component | Difficulty (1-5) | Time required | Risk of damage |
|---|---|---|---|
| Back cover. | 1 | 5 minutes. | Low. |
| Battery | 2 | 15 minutes. | Medium (puncture risk) |
| Display module | 4 | 40-60 minutes. | Tall (glue, plumes) |
| Maternity fee | 5 | 60+ minute | critical |
As you can see from the table, replacing the display and motherboard requires the most care.If you are a beginner, it is recommended to train on non-working devices or start by replacing simpler elements such as a battery or a lid.
Smartphone assembly and initial launch
It's a golden rule of electronics repair, and make sure all screws are twisted and the plumes are securely fixed with clamping slats.
Pay special attention to the stacking of the plumes, which should not be twisted or sandwiched between the metal frame and the plastic elements, and any inflection can lead to the break of contacts in the future.
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Use a new double-sided tape or a special glue B-7000 to fix the display and back cover. the old glue is better removed completely with alcohol or a special solvent.
Once fully assembled, don't be in a hurry to close all the screws permanently. Connect the battery and try to turn the device on. If the smartphone starts, the screen responds to touch, and the sound is present, you can complete the assembly.
⚠️ Warning: If the phone doesn't turn on after assembly, don't panic. Check to see if the battery plume and display plume are fully inserted. Often the problem lies in poor connector contact.
A well-designed repair will allow your Redmi Note 4X to last for many years to come, but the main thing is to take your time and carefully monitor your every move.