The process of disassembling modern smartphones is often a concern for users who are afraid of damaging fragile structural elements or disrupting the tightness of the case. Xiaomi Redmi 6 is no exception, as its back panel is made of polycarbonate and is fixed on a fairly strong adhesive layer, which requires accuracy and the presence of specific tools. Many owners face the need to replace the battery, repair the charging connector or simply deep cleaning of internal components from dust that accumulates inside the case over time.
In this article, we will take a detailed look at how to remove the lid from the Xiaomi Redmi 6 phone so that you can perform the necessary manipulations yourself without contacting the service center. It is important to understand that any interference with the design of the device can lead to a loss of warranty, so all actions are taken at your own risk. However, with safety and using the right tools, the risk of failure is minimized, and the process becomes quite feasible even for beginners.
Before you start to take action, you need to prepare the workplace and make sure you have everything you need, and rushing is the main enemy, because one awkward movement can lead to a crack in the display glass or damage to the plumes. We will analyze each step from turning off the device to the final assembly, paying special attention to the nuances characteristic of this particular model of smartphone.
Tools and workplace preparation required
Quality preparation is half the success of any repair operation. To safely remove the Redmi 6 back cover, you will need a minimal but specific toolkit that can be purchased from any electronics store or ordered online. Using inappropriate items such as knives or needles is highly undesirable, as they can damage plastic or, worse, break through the battery.
A typical household hair dryer is a good tool for working with the adhesive layer, although professionals often use a thermo-air soldering station to control temperature more accurately, and a suction cup is an indispensable tool, which allows you to create a vacuum clutch with a smooth surface of the back panel and gently lift it after heating.
Plastic mediators or special blades will be needed to separate the layers and tweak the edges of the case. Metal tools such as scalpels or screwdrivers should be used with extreme caution and only in places where the risk of damage to the internal components is minimal. In addition, you will need tweezers to work with small parts and possibly isopropyl alcohol to dissolve the residue of the glue.
- π§ Plastic mediators or shoulder blades for opening the body without scratches
- π‘οΈ A hair dryer or thermophen to heat up the adhesive layer
- π§² Suction cup for careful pulling back cover
- π§΄ Isopropyl alcohol or special liquid B-7000 glue-removal
The organization of the workspace is also critical: the table should be clean, well-lit and free of unnecessary objects that may get lost or be accidentally touched. It is recommended to use an antistatic mat or at least a clean fabric so that small screws and parts do not scratch or get lost. SIM-card and memory card, as their presence can interfere with disassembly or lead to damage to slots.
β οΈ Warning: Never start disassembling without making sure the smartphone is completely off.Attempting to remove the lid with the device on can result in a short circuit if the plumes or battery contacts are accidentally damaged.
βοΈ Checking disassembly readiness
Safety technique when working with the battery
The most important element that requires special attention when disassembling any smartphone is the battery. In the Xiaomi Redmi 6 model, the battery is located directly under the back cover and occupies a significant part of the interior space. Damage to the lithium polymer battery can lead to its ignition, bloating or even explosion, so taking precautions here is not just a recommendation, but a strict necessity.
The first rule is to prohibit the use of sharp metal objects in the immediate vicinity of the battery. If you need to smack the edge of the lid in the battery area, use only plastic tools. Puncture of the battery shell with a needle or scalpel will cause an instant chemical reaction with the release of smoke and fire, which is dangerous to health and property.
It is also important to control the heating temperature. Excessive overheating of the device can damage the battery, screen or plastic elements of the case. The optimal temperature for softening the adhesive is about 80-90 degrees Celsius, and should not be exceeded. Keep the hair dryer at a distance of 5-10 centimeters from the surface of the phone and constantly move it so that the heat is evenly distributed.
- π« It is strictly forbidden to pierce or bend the battery
- π₯ Do not heat the device for longer. 2-3 minute-in-a-minute
- π‘οΈ Use protective glasses to protect your eyes from possible glass fragments
- π Work in a well-ventilated room to avoid inhaling glue vapors
Another aspect of safety is static electricity. Although modern smartphones are protected, the discharge of statics from your body can damage sensitive electronics. Before touching the internal components, it is recommended to touch a grounded metal object or use an antistatic bracelet. This is especially true in winter, when the humidity is low and the risk of static charge accumulation increases.
What to do if the battery is swelling?
The process of heating and separation of the back panel
The key step to remove the lid from the Xiaomi Redmi 6 without damage is the correct heating of the body perimeter. The adhesive used by the manufacturer is thermoactive, that is, softens when the temperature rises. Uniform heating throughout the circuit of the device will ensure easy detachment of the panel and minimizes the risk of cracks on the plastic or glass of the display on the back side.
Turn on the dryer at medium power and start heating the edges of the back cover by moving the jet of air around the perimeter. Pay special attention to the corners and long sides, as this is where the adhesive layer can be thicker. The heating process usually takes 2 to 4 minutes, depending on the waxing power and the initial temperature in the room. Periodically check the heating by gently touching the surface with your finger - it should become hot, but not scald.
After enough warming up, place the suction cup at the bottom of the back cover, closer to the center, but avoiding the camera area. Pull the suction cup up, creating a little voltage, and simultaneously insert the plastic mediator into the resulting gap. Don't try to remove the lid completely immediately; your task is to create an initial gap around the perimeter.
Slowly drive the mediator along the edges of the case, slightly lifting the panel. If you feel strong resistance, stop and warm up again. Sharp movements are unacceptable, as they can cause the fingerprint scanner plume or volume buttons to break off, which can be attached to the lid or be in close proximity to the edges.
| Heating phase | Duration | Temperature. | Action. |
|---|---|---|---|
| Initial warming up | 1-2 minutes | 60-70Β°C | Softening the outer layer of glue |
| Main heating | 2-3 minutes | 80-90Β°C | Complete softening of the glue layer |
| Local heating | 30-60 seconds. | 85-95Β°C | For complex areas (corners) |
| Cooling down | natural | Room room | Fixing the form after removal |
When you separate the lid, you might hear a characteristic crack or click -- that's normal, because it breaks the adhesives -- but if the sound gets too loud or suspicious, you might want to stop and check if there's some internal component that's caught, and remember that in some versions, the fingerprint scanner can be integrated into the back cover and connected by a plume to the motherboard.
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If you don't have a suction cup, you can use a strong floss or dental floss, put it in a small gap (after the first mediator tweaking), and hold the ends of the thread on both sides, mold it with sticky movements around the perimeter, gradually deepening.
Work with plumes and internal components
Once the Xiaomi Redmi 6 cover is separated around the perimeter, take it easy to remove it completely. In this model, the fingerprint scanner is located on the back and connected to the motherboard with a thin and very fragile plume. A sharp jerking motion can instantly break this contact, after which the scanner will stop working, and its replacement will require the purchase of a new cover assembled or a complex soldering.
Carefully lift the edge of the lid and look inside. You'll see a plume going from the scanner module to the connector on the board. It can be secured with a small amount of glue or simply inserted into the connector. Use a plastic blade or tweezers with wide sponges to turn off the plume so that you don't damage the contact paths.
If the plume is glued to the body, warm it up slightly with a hairdryer at the adjacent location to ease the adhesion. Then very slowly and smoothly disconnect the connector. The movement should be strictly vertical or at a minimum angle, without distortion. Once the plume is turned off, the back cover can be completely removed and put back to a safe place.
- π Carefully inspect the plume for microcracks before disconnecting
- π§© Remember or photograph the position of the connector before extraction
- ποΈ Do not touch the contacts of the plume with your fingers, so as not to leave greasy traces.
- πΈ Take a photo of the internal layout before dismantling other elements
Once the lid is removed, you will have access to the battery, motherboard, cameras and other modules. If your purpose was to clean, you can use a soft brush and a pear to remove dust. If you plan to replace components, you should also be careful to unscrew the screws and disable other plumes as needed. screws of different lengths can occur in the design, so sort them as you twist them out so you don't get confused when you build them.
β οΈ Attention: The fingerprint scanner plume is one of the most vulnerable elements, and if it's damaged, the fingerprint unlock function will stop working even if the module is intact.
Cleaning from glue and reverse assembly of the device
Once the back cover is successfully removed and repaired, the preparation for the reassembly begins, and the old adhesive layer left on the frame and on the lid itself must be removed completely, and the residue of the adhesive will interfere with the tight fit of the new tape or the application of new adhesive, which can lead to backlashes or unfeeling of the lid in the future.
To remove the glue, use isopropyl alcohol or a special glue removal agent (such as the B-7000). Apply a small amount of liquid on a tissue or cotton-coated disc and gently wipe the surfaces. Do not pour the liquid directly onto the phone so it does not get inside on the electronics. Plastic card or blade (very carefully) scrape the softened residues.
To fix the lid, you can use special electronics glue (B-7000 or T-7000) or ready-made adhesive tapes cut into the shape of the case. The adhesive is applied in a thin strip along the perimeter of the frame and, if necessary, around the camera. After applying the composition, let it dry a little (1-2 minutes), then carefully install the lid in place, combining all the holes and protrusions.
Tightly press the lid around the perimeter and lock the device with money bands or special clips for 15-20 minutes until the glue catches. Don't turn the phone on immediately, give the sealant time to polymerize. Complete drying of the glue usually takes 2 to 4 hours, depending on temperature and humidity.
- π§Ή Degrease the surface with alcohol before applying new glue
- π§ Do not use superglue (cyanacrylate) as it can damage plastic
- β±οΈ Keep the time of fixing the lid with clamps for reliable clutch
- π§ͺ Check the operation of all buttons and scanner before final fixation
It's also important to make sure that you don't get dust or villi under the lid while the glue is drying. If you use liquid glue, you can easily remove the excess glue that you've exposed with your finger or a dry wipe by rolling it into your coils, and when it's dry, it becomes transparent and invisible, but it's best to remove it right away.
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The quality of cleaning surfaces from old glue directly affects the tightness of the assembly and the durability of the repair.
Common Mistakes and How to Avoid Them
Disassembling the Xiaomi Redmi 6 is not a difficult process, but it requires care. Beginners often make a number of common mistakes that can turn a simple repair into an expensive problem. Understanding these risks will help you avoid trouble and keep the device working.
One of the most common mistakes is not heating the case properly, and in an effort to save time, users start to pull the lid when the glue is not yet softened, which leads to plastic latches breaking, cracking the case, or, in the worst case, battery damage, and patience and careful warming is key to success.
Another common mistake is ignoring plumes. As mentioned, the fingerprint scanner in Redmi 6 is connected to the board. Trying to pull the lid sharply without checking for the plume is guaranteed to cause it to break. Always check for connections before completely removing any parts of the case.
Using inappropriate tools can also be harmful. Metal screwdrivers, knives and needles slide across smooth plastic and can jump off, damaging the screen or internal components. Plastic mediators and suction cups are your best friends in the process. If there's no professional kit on hand, use old plastic cards, but proceed with caution.
β οΈ Warning: Don't try to use force if something doesn't open. If the lid or component doesn't lend itself, you missed the screw, didn't warm up enough, or didn't turn off the plume.
Also worth mentioning is a reverse build error: A forgotten screw, an improperly connected plume or dust can cause your phone to fail: Collect the device in a clean room, use a magnifier to inspect small parts, and take your time to twist the screws until the basic functions are checked.