Modern smartphones, including the popular Xiaomi Redmi 6, are designed to be monolithic, making disassembling them an inexperienced task. Unlike older phones with removable batteries, the lid is attached to a special adhesive compound that ensures tightness and strong adhesion of body parts. Many owners face the need to access internal components to replace the battery, repair the charging plume or clean the speakers from dust.
The process of opening the case requires extreme caution, as sloppy movements can lead to damage to the glass or deformation of plastic elements. The main difficulty is that the manufacturer does not provide regular maintenance of the device by the user, so all connections are hidden. Before starting work, it is important to understand that you take responsibility for the integrity of the gadget, and any damages received in the process may not be covered by the warranty.
In this article, we will take a look at all the steps of dismantling the Redmi 6 back, from the preparation of the workplace to the final assembly. You will learn what tools are really necessary and what can harm, and how to safely disconnect the plumes without damaging the motherboard. Following the instructions will help you avoid common mistakes and successfully perform repairs.
⚠️ Warning: Before starting any manipulations with the body, make sure that the battery is discharged to a minimum of 15-20%. Working with a fully charged battery increases the risk of short circuit or fire in case of accidental damage to the power supply by the tool.
Tools and workplace preparation required
Good workplace preparation is the foundation of a successful renovation. You'll need a smooth, well-lit surface, preferably with an antistatic coating or a clean mat, so that small screws and parts don't get lost or rolled away. Light should fall evenly, without sharp shadows that prevent you from seeing small fasteners under the display or near the connectors.
To open the Xiaomi Redmi 6, you will need a specific set of tools that can be purchased in electronics stores or ordered online. Using improvised tools such as knives or needles is highly undesirable, as they can slip and damage internal plumes or break the screen.
- 🛠️ Screwdriver kit: A cross screwdriver (usually Phillips size #00 or #0) and possibly a slat for tweaking contacts is required.
- 🌡️ Heat source: Hair dryer (construction or household at minimum power) or a special heating pad for heating the adhesive layer.
- 💳 Plastic blades: Mediators, plastic cards or special opening tools (spudger) to avoid scratching the body.
- 🧲 Magnetic mat or organizer: For sorting screws, as they may differ in length and thread at different points in the body.
Pay special attention to clean hands and tools. Fat spots can remain on the internal components, and static electricity can disable sensitive electronics. It is recommended to use an antistatic bracelet or periodically touch a grounded metal object.
☑️ Preparation for disassembly
The process of heating the glue layer
The Redmi 6 back cover is attached to the body frame with double-sided tape, which softens when heated and loses its adhesive properties. Without prior warming, attempts to separate the cover mechanically are almost guaranteed to lead to cracks in the glass or breakage of plastic latches.
Use a dryer by setting the average airflow temperature. Don't direct the hot jet of air to one point for too long, especially in the area of the camera or screen, so as not to damage the matrix or optical stabilizer. Warm up the perimeter of the device evenly for 2-3 minutes, constantly moving the hair dryer.
How do you know if the phone is going to warm up enough? Carefully try to shovel the corner. If the tool comes in with noticeable resistance, but the glue has already begun to give in, you can continue. If the lid is not moving at all, add a little more heat. Overheating is dangerous by bloating the battery, so control the temperature of the body with your hand.
Alternative heating methods
Act gradually, checking the condition of the glue every 30 seconds.
Technique for safe opening of the body
Once the adhesive layer is heated, the most critical step is to insert a thin plastic blade or mediator into the junction between the back cover and the side frame, and it's best to start at the bottom corner, where there are usually fewer electronics and plumes, which reduces the risk of damage.
Don't try to snap the lid with one sudden movement. Your job is to slowly move the tool along the perimeter, cutting the softened glue. Keep the blade parallel to the plane of the phone so you don't get stuck in the display on the inside. Gradually move along the side edges, then to the top.
⚠️ Note: It is strictly forbidden to use metal objects (knives, blades) to separate the lid and the body. Metal easily slips and can cut the display plume or damage the battery, which will lead to irreversible consequences.
When the main sides are free, gently lift the lid.At the top of the Xiaomi Redmi 6 may be a main camera module that sometimes prevents full opening.Act delicately, checking if any component is hooked.
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Use a suction cup to create an initial gap, and you need to glue the suction cup to the bottom of the back cover, pull it upwards, and then you need to put a plastic spatula in the gap.
Disconnection of plumes and dismantling of components
When you remove the back cover, you'll have access to the insides of your smartphone, but you can't rush to take out the battery or any other parts, and the first thing you need to do is turn off the main display plume from the motherboard to shut down the device and avoid short circuits when you're going to work.
Trains in Redmi 6
Next, you have to unscrew the screws that lock the protective metal plates, which can block access to the battery plume, the camera module or the speaker, and fold the screws into the organizer in the order in which you twisted them, because they may differ in size.
- 🔋 Battery: Often glued to the case. Use a plastic card to extract it, gently putting it under the battery. Don't use sharp objects!
- 📷 Camera: The camera module can be glued or sit tightly in the seat.Switch off the plume and carefully remove the module.
- 🔊 Speakers and vibro: These components can also be attached to glue or screws.
When working with the motherboard, avoid touching the contacts with your fingers, as skin fat causes oxidation. If you are planning to replace parts, make sure that the new components are fully compatible with your board revision.
Comparison of autopsy methods and risks
There are several approaches to disassembling smartphones, and each has its own advantages and disadvantages. The choice of method depends on your qualifications, availability of tools and repair goals. Below is a table comparing the main approaches to dismantling the Xiaomi Redmi 6.
| Method | Tools | Risk of damage | Recommended level |
|---|---|---|---|
| Heating with a hair dryer | Fen, shoulder blades. | Low (when controlling temperature) | Amateur/Prof |
| Chemical solvent | Alcohol, isopropanol | Medium (risk of fluid intake) | Profi. |
| Mechanical effort | Suction, knife. | High (cracks, plume cuts) | Not recommended |
| Vacuum separator | Specialized equipment | Minimum | Service centre |
Using chemical solvents such as isopropyl alcohol can make it easier to separate the lid if the glue is very old and hard, but the liquid can leak into the housing and damage the electronics, so this method requires high accuracy and the use of a minimum amount of reagent.
Mechanical exposure without heating is the riskiest way. Redmi 6 plastic becomes brittle at low temperatures, and the pressure of the shoulder blade can lead to microcracks that manifest later in the form of chips or complete destruction of the angle.
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Heating hair dryer remains the gold standard for home disassembly, providing a balance between safety for components and the effectiveness of softening the adhesive.
Assembly and sealing of the shell
Once the repair or replacement is successful, the reverse assembly phase begins, and before the rear cover is installed, the perimeter of the case and the lid itself must be thoroughly cleaned of the residues of old glue, and use soft fabric, slightly moistened with alcohol, to degrease the surfaces.
For a reliable fixation, a new layer of glue is recommended, which can be a special glue B-7000 or T-7000, or a pre-cut adhesive, which can be bought separately.
Combine the lid with the body, starting at the top, and press tightly around the perimeter. Make sure all latches fall into place. To polymerize the glue and ensure maximum leakage, it is advisable to put the phone under the press (for example, under a stack of books) for 1-2 hours.
⚠️ Warning: Do not turn on the phone immediately after assembly. Give the adhesive compound time to grab (minimum) 30-60 minutes), otherwise the lid may move away and the leakage will be broken.
Check all the features: touchscreen, cameras, speakers and buttons. If everything works correctly, then the assembly was successful, otherwise you will have to open the device again and look for the cause of the malfunction.