Modern smartphones like the Xiaomi Redmi Note 6 Pro are designed with a monolithic mindset, which often makes them a difficult process to disassemble without special skills. The back panel in this model is glued around the perimeter, and careless handling can lead to cracks in the glass or damage to internal components. Understanding the design of the device is the first and most important step before starting any manipulation of the case.
The need to remove the back cover usually occurs when replacing broken glass, battery or repairing the charging module. It is important to realize that any interference with the design of the device can lead to a loss of warranty if it is still relevant. However, with the right approach and the necessary tool, the risk of damage to electronics is minimized, and the procedure becomes quite feasible at home.
In this tutorial, we will take a detailed look at each step of dismantling, with a focus on areas of increased fragility, and you will learn what tools you will need, how to properly heat the adhesive layer, and how not to damage the fingerprint scanner plume that is attached directly to the lid. Be careful of the details, because rush here is the main enemy.
Tools and workplace preparation required
To successfully disassemble the Redmi Note 6 Pro, you will need not only a desire, but also a specialized set of tools that will ensure the safety of the process.The use of inappropriate items such as knives or needles is strongly discouraged, as they can damage the display or short contacts on the board.
First of all, you need a heat source, which can be a building hair dryer, which is preferable because of the uniform warming, or a regular household hair dryer, if you hold the device under it for a little longer, and an indispensable assistant will be a suction cup, which allows you to create a gap between the case and the lid.
To open the body directly, you need thin plastic mediators or special shoulder blades, and you can use metal tools, but with extreme caution, so as not to scratch the frame.
- 🔧 Plastic blades or mediators for opening the body
- 🔥 Hair dryer (construction or household) for softening glue
- 📱 Suction cup to create initial gap
- 🧲 Magnetic mat or screw container
- 🧴 Isopropyl alcohol or special solvent of glue (B-7000)
Organize your workspace so that it is well lit and free of unnecessary objects. Small screws tend to fly and get lost in the pile of the carpet or fall on the table, so having a magnetic mat or at least white paper will make it much easier to assemble back.
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Use isopropyl alcohol to clean the residues of old glue – it evaporates quickly and leaves no trace, unlike water or oil-based solvents.
Primary preparation of the device for disassembly
Before you start heating the case, you need to perform a series of preparatory actions that will protect the data and the gadget itself. SIM-This is critical, because heating can warp the plastic in the tray, and it gets stuck inside the case.
Work with electronics under voltage, even disconnected from the network, carries the risk of short circuit, especially if during the dismantling you accidentally damage the battery plume or touch the contacts of the board.
⚠️ Warning: Do not start heating if there are visible cracks on the screen or back cover.Thermal expansion can cause the glass to finally crumble or sharp edges to damage the inner layers of the display.
Remove the protective cover and protective glass, if any. The cover will interfere with the uniform heating of the perimeter, and the films can melt and leave a sticky mark. Make sure the surface of the device is clean and dry.
☑️ Ready to disassemble
The process of heating and creating a gap
The glue that holds the back cover of the Xiaomi Redmi Note 6 Pro is a thermoactive compound, which means that as the temperature rises, it softens and loses its adhesive properties, but it is important not to overheat the device so as not to damage the display matrix or swell the battery.
Turn the dryer on to the average temperature and direct the air flow to the end of the device, driving it around the perimeter. Do not hold the hair dryer at one point for longer than 3-4 seconds. The optimal temperature of heating the surface of the glass or plastic is about 80-90 degrees Celsius. To the touch the body should become hot, but so that the hand can still tolerate touch.
After 2-3 minutes of warming up, try to gently suck the suction cup to the bottom of the back cover. Pull the suction cup up, creating tension, and simultaneously inject a thin plastic blade or mediator into the resulting microscopic gap. If the lid does not lend itself, the heat should continue.
Move around the perimeter, gradually introducing the shoulder blade deeper, and pay special attention to the corners, because there is usually the most glue, and it is from the corners that chips often begin when you work sloppy.
What to do if the lid does not move?
Disabling the fingerprint scanner plume
One of the most critical areas when removing the back cover of the Redmi Note 6 Pro is the fingerprint scanner area. Unlike many other models, here the scanner is physically attached to the inside of the back cover and connected to the motherboard with a thin plume.
When you've already passed a plastic card or a shoulder blade around the perimeter and the lid has started to move away, don't pull it up sharply. You can easily tear the scanner plume, after which the finger unlock function will stop working and repairs will become much more expensive.
Carefully lift the bottom of the lid to access the inner cavity, you will see a plume going from the scanner to the connector on the board. It must be disconnected. Use a plastic blade or nail to gently lift the connector lock (if any) or simply pull the connector out of the groove if there is no lock.
- 🔍 Visually evaluate the path of the plume so as not to hook it with a spatula
- 👐 Act slowly, without sharp snatching of the lid
- 🛠 Use a dielectric tool to turn off the connector
⚠️ Attention: The fingerprint scanner plume is very thin and fragile, and if it's damaged, it'll cause the scanner to fail. If you're not sure about your abilities, you'd better ask someone to hold the lid while you turn off the plume.
Dismantling screws and removing protective screens
Once the back cover is completely detached and the plume is off, the smartphone’s internal device will open up to you, but access to basic components such as the battery or charging connector is often closed with additional protective screens or plastic pads that are attached to the screws.
In the Xiaomi Redmi Note 6 Pro, the screws can be placed under decorative stickers or hidden under plastic plugs. Carefully examine the inner surface of the case. All screws are usually the same size, but it is better to arrange them in the order of removal, so as not to confuse anything during assembly.
Use a cross screwdriver of the right size (usually a PH00 or PH000). Don't put too much effort into not tearing off the screw caps. If the screw isn't spinning, it might be filled with glue, in which case spot heating of the area will help.
| Component | Type of attachment | Risk of damage | Tool. |
|---|---|---|---|
| Back cover. | Clay + Schleife | High (glass break) | Fen, mediator |
| Protective bar. | Screws (cross) | Medium (carving break) | Screwdriver. |
| Battery | Clay + Schleife | Critical (fire) | Scapula, hairdryer |
| Camera module | Landing + Trail | Tall (dust on the lens) | Tweezers |
By removing all the visible screws and turning off the necessary plumes, you have full access to the insides of the smartphone, and you can now replace the battery, clean the speakers or do other repairs.
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The main difficulty of disassembling the Redmi Note 6 Pro is not the number of screws, but in the careful separation of the cover and disconnecting the plume of the fingerprint scanner.
Frequent errors and precautions
Even skilled craftsmen sometimes make mistakes that can cost a device life, and one of the most common problems is using too much heat when heated, and an overheated lithium polymer battery can swell or, at worst, catch fire.
Another common mistake is ignoring plumes, where in the pursuit of speed, beginner repairmen simply tear off the lid, forgetting that something is connected to it, resulting in a trail break in the plume that is almost impossible to regenerate with soldering at home because of its microscopic size.
Also worth mentioning is the risk of moisture: If you use alcohol or other solvent to remove the adhesive, make sure that the liquid does not leak under the display or on the motherboard, which can cause corrosion of the contacts, which will manifest itself a week or a month after repair.
- 🚫 Do not use metal blades to slap the cover near the display
- 🌡 Control the heating temperature, avoiding blackening of the plastic
- 🔋 Do not try to remove the battery if it is too inflated – it is dangerous.
⚠️ Warning: If you damage the battery during the disassembly (smoke, smell, deformation), immediately stop work, take the device to a non-combustible surface and fill it with sand or place it in a container with water for disposal.
Assembly and installation of a new back cover
Once the repairs are completed successfully, the assembly phase begins, and before installing the new back cover, the end of the case must be thoroughly cleaned of the residue of the old glue, and a scraper or blade can be used to do this, acting carefully so as not to scratch the frame.
If you use a new lid with an already applied adhesive layer (B-7000 or analog), just remove the protective film. If there is no adhesive, apply a thin strip of special electronics glue around the perimeter. Don't overdo it: excess glue can leak out or into the case, staining the components.
First, connect the fingerprint scanner plume to the motherboard, make sure it's up before you click and it's locked. Then gently apply the lid, combining all the holes and faces. Press tightly around the perimeter.
For reliable fixation, it is recommended to use rubber harnesses or stationery gums, wrapping them around the perimeter of the smartphone for 15-20 minutes until the glue catches, and then you can install the screws of the protective strips in reverse order.