Repairing modern smartphones often seems like a challenge requiring specialized equipment, but the Xiaomi Redmi Note 6 Pro is designed so that an experienced user can perform basic replacement operations on their own. Disassembly of the device may be necessary if you replace a broken screen, worn-out battery or clean internal contacts of moisture. Understanding the design of the gadget is the first step to successfully restore its functionality without going to the service center.
In this guide, we will take a detailed look at the process of dismantling the back cover, disabling the plumes and removing the main nodes. Follow each step carefully to avoid damaging fragile structural elements. Remember that any manipulations inside the case you make at your own risk, and violation of warranty seals can lead to denial of official service.
Before work begins, you need to prepare the workplace with good lighting and no statics. Xiaomi Redmi Note 6 has a glass back panel, which requires special care when heating the adhesive layer. Don’t rush to use force if something does not respond, as this is a sure sign that additional preparation or heating is required.
Tools and workplace preparation required
High-quality disassembly is impossible without the right tools that minimize the risk of damage to the body and electronics. You will need a set of precision screwdrivers, including a cross PH000 for screws and flat for neat tampering elements. Also indispensable assistant will be a metal blade or a thin mediator for working with adhesive joints.
Pay special attention to the heating tools, as the glue that holds the back cover is very strong at room temperature. Use a hair dryer or special heating platform to soften the adhesive layer without overheating the display matrix. The heating temperature should not exceed 80-90 degrees Celsius, so as not to damage the plastic frames and internal components.
☑️ Disassembly tools
To protect against static electricity, which is harmful to chips, it is recommended to use an antistatic bracelet or regularly touch a grounded metal object. All small screws are better sorted immediately by disassembly stages, as they can differ in length and threading. Using isopropyl alcohol will help dissolve the glue residue and degrease the surface before new assembly.
Removal of the back cover and primary access
The first step is always to remove the tray for SIM-So you can reduce the internal pressure and avoid damage to the contacts, and then you can turn the device off and flip it down on a soft but stable surface. Heating of the back panel should be uniform, paying special attention to the perimeter where the adhesive seam is located.
⚠️ Warning: Do not heat the area in the center of the back too much, as there is a battery under it that can swell or ignite when overheated.
Once the panel is warmed up, use the suction cup to create a small gap between the glass and the frame, and carefully insert the mediator. Lead the instrument along the perimeter, gradually cutting through the adhesive layer, but avoid deep immersion to avoid damage to the plume of the fingerprint scanner. The camera plume and the fingerprint sensor are in the upper and central parts, requiring special care in these areas.
Once the lid is removed, you'll have access to the insides, where you'll immediately notice the protective plate that covers the plumes. Unscrew all the visible screws from this plate using a magnetic mat to store them. Some screws can be hidden under stickers or rubber plugs, so carefully inspect the surface before removing the protection.
Nuances of the glue layer
Disconnection of plumes and dismantling of components
When you remove the safety plate, you'll see the main connectors connecting the motherboard to the display and battery, and the first thing you need to do is turn off the battery plume to completely shut down the device and avoid short circuits in the future. Use a plastic blade to shut down, gently lifting the connector upwards, without putting any metal tools on it.
Then you detach the display and touchscreen plumes, which are usually located next to the battery connector. The camera module may also require dismantling if you change the screen or body, and its plume often passes under other elements. Remember or photograph the location of all connections, since the assembly in reverse requires accuracy.
| Component | Location. | Type of attachment | Features |
|---|---|---|---|
| Battery | The bottom part | Glue + screws | Requires heating to remove |
| Maternity fee | Upper part | Screws + plumes | Lots of small contacts. |
| Main camera. | Center-top. | Screw + plume | Fragile lens |
| Dynamician | Bottom of the hull | Screws. | Contact fives |
When you remove the vibrator or lower speaker, it's important not to lose the contact springs that provide the connection to the board. The vibration in this model is fairly secure, but its plume can be glued to the frame. Use tweezers to carefully unplug the small connectors, holding the tool at the right angle.
Replacement of the battery and work with glue
The battery in the Xiaomi Redmi Note 6 is attached to double-sided tape, which eventually loses its properties or, conversely, hardens. To safely remove the old battery, you need to apply a special liquid (for example, iSesol) or isopropyl alcohol under the edges of the battery, which will dissolve the glue and remove the battery without deformation, which is critical for fire safety.
When installing a new battery, make sure that its contacts are clean and not oxidized, and the cell itself fits tightly to the housing. Do not use superglue or other aggressive chemicals to fix the battery, as they can damage the internal organs or the battery itself.
⚠️ Warning: If the battery is swelling, do not puncture it or bend it, as this will cause lithium to ignite.
After installing a new battery, check the voltage on the contacts with a multimeter if possible to make sure that the new part is working properly. Proper installation ensures that the phone will hold the charge declared by the manufacturer for the time. Also check whether the plume is compressed during assembly, as this can lead to inoperability of charging.
Dismantling of display and touch screen
Replacing the display is one of the most common causes of disassembly, and in the Redmi Note 6 Pro, the screen is often changed to a frame assembly, which makes it easier. If you have a frameless module, you will need to carefully transfer all components (boards, speakers, cameras) to a new frame, which requires increased attention, since the number of small screws and plumes is large.
When disconnecting the old display, make sure all the screws around the perimeter of the frame are twisted, otherwise the glass may crack when trying to extract.The touchscreen may be glued to the frame and its removal requires heating and using a thin string or blade.Work slowly, controlling the depth of the instrument's immersion so as not to damage the matrix or backlight.
💡
Before installing a new screen, check its operation by connecting the plumes to the board without final assembly of the case, which will avoid re-disassembly in the event of a marriage.
When you assemble a device with a new screen, make sure that there is no dust or villi under the display that will create air bubbles. Spread the adhesive evenly around the perimeter of the new frame if you use a separate module, and press the screen tightly until it freezes completely. The build quality directly affects the moisture protection and tactile sensation of using a smartphone.
Assembly of the device and verification of functionality
The assembly is done in reverse order, starting with the motherboard and the plumes, and the battery is first connected, and then you can check the device's turn on without completely twisting the screws, which is a critical step to make sure that the smartphone responds to the power button and shows the image.
Check all the modules: take a photo on the front and main camera, check the sound through the speaker and microphone, and the fingerprint sensor. Make sure the touchscreen responds throughout the screen area and there are no dead zones. Only after successful testing can you start the final screw twisting and sticking the back cover.
What if the phone doesn’t turn on after assembly?
Do I need to change the adhesive layer at each disassembly?
Can I use a dryer instead of a blow dryer?
Where to find original parts for the Redmi Note 6?
Will the guarantee be dropped after a self-disassembly?
The final step is to put the back cover on a fresh adhesive layer and hold it with rubber harnesses or loads while the adhesive is drying, leave the phone alone for a few hours to maximize the strength of the adhesive, and once the adhesive is fully polymerized, it's ready for active use and will last for a long time.