How to open the cover Xiaomi Redmi 8 Pro: step-by-step instructions

The process of disassembling modern Xiaomi smartphones is often difficult for users who are used to the design with a removable rear panel. Xiaomi Redmi 8 Pro model was no exception, as it uses a method of gluing the case, requiring caution and a special approach. If you plan to replace the broken glass, battery or just clean the speaker of dust, you will have to carefully separate the rear panel from the frame.

Many craftsmen mistakenly believe that it is enough to simply plug the lid with a mediator, but in the case of this device, such a tactic is almost guaranteed to lead to cracks in the glass. The back is made of strong but fragile glass that is attached around the perimeter to double-sided adhesion glue. Before starting work, you need to clearly understand the risks and prepare the workplace.

In this article, we will take a closer look at each stage of dismantling, with a focus on heating the glue and safely turning off the plumes. Ignoring heating technology can make the opening process almost impossible without professional equipment. Let's look at what tools will be needed and how to avoid the typical mistakes when working with the glued casing.

Tools and workplace preparation required

The success of the Redmi 8 Pro disassembly operation depends 90% on the quality of preparation. You don't need a suitcase of professional equipment, but the kit must be specialized. The use of knives or sharp metal objects is strictly prohibited, as they can damage internal components or glass.

You will need to work:

• 🔥 Hair dryer (construction or household at maximum temperature) - necessary for softening the adhesive layer.
• 🎴 Plastic mediators (openers) - better prepared 3-4 things, because they can bend.
• 🔧 Torx screwdriver set (star) – usually size required T5 or T6 charge-pen.
• 📎 Suction - will help create a primary gap after heating.

It is important to ensure good lighting of the work area. Small screws and thin plumes are poorly distinguishable in dim light, which increases the risk of loss of fasteners or sloppy movement, it is also recommended to use an antistatic mat or at least a clean, non-flagging surface of the table.

Before you open the lid, be sure to turn off the device. Working with electronics under voltage can lead to a short circuit, especially if you accidentally damage the battery plume or the display connector. This is a basic safety rule that can not be ignored.

The process of heating and separation of the rear panel

The most critical step is to soften the glue. Factory adhesion on the Xiaomi Redmi 8 Pro is very strong, and the cold case will not be open. Heat should be done evenly, driving a hairdryer around the perimeter of the rear cover, paying special attention to the corners and edges.

The heating temperature should not exceed 80-90 degrees Celsius, so as not to damage the display on the back side or internal plastic elements. Keep the hair dryer at a distance of 3-5 cm from the surface and constantly move the flow of hot air. The process takes from 2 to 5 minutes depending on the power of your heating device.

⚠️ Warning: Do not heat the area around the main camera for too long and intensely.The camera module is sensitive to overheating, which can lead to black spots on the matrix or deterioration of the shooting quality.

Once the glass is warm to the touch (but not burning), you can start creating a gap. Put a suction cup at the bottom of the lid, closer to the logo, and pull up, while inserting a thin plastic mediator into the resulting gap. If the gap does not form, add a little more heat, but do not apply brute force.

Move the mediator along the perimeter, gradually cutting through the adhesive layer. Try to keep the tool parallel to the plane of the body so as not to touch the plumes coming from the buttons or fingerprint sensors (if they are located on the lid, although in this model the side scanner) The adhesive layer can stretch, creating threads that need to be carefully cut or separated.

Disconnection of plumes and removal of protective strips

When the back cover is completely separated from the body, don't rush to put it aside. In some versions, plumes or antenna wires can be attached to the inside of the glass, although in the Redmi 8 Pro, the main switching is on the bottom board. However, access to the battery and the upper part (motherboard) is blocked by plastic protective slats.

These slats are attached with screws of different sizes, and it's critical to keep the order of how they're twisted and remember which screw was extracted from where, and the screws that are tangled may not be screwed in or may damage the thread in the plastic.

Once you remove all the screws, gently apply the plastic slat locks to the mediator. Act slowly as the plastic becomes brittle over time. Under the slats, you'll see the connectors of the display plumes, the touchscreen and the battery.

The first thing you need to do is turn off the battery plume, and this will turn off the battery, and it will keep the rest of the components safe as you go along. Use a plastic blade or nail to turn off the plumes, putting the connector vertically upwards, and swinging the connector from side to side can damage the contacts on the board.

Replacement of the battery and work with BMS

The main reason for disassembly is often a battery replacement. In the Xiaomi Redmi 8 Pro, the battery is not only fixed with glue, but also pressed with a frame or extra elements. The glue under the battery also requires careful heating, but from the inside of the case if you have withdrawn the fee, or through the gap if you change without completely dismantling the board.

It is strictly forbidden to try to remove the swelling battery with sharp objects. A puncture of a lithium polymer battery can lead to ignition or chemical burn. If the battery is held tight, use a special liquid to dissolve the glue (for example, B-7000 or isopropyl alcohol), pouring it around the perimeter of the battery.

When installing a new battery, make sure the connector matches the pins. Sometimes manufacturers change the pins in different batches, so visual matching the shape of the connector does not always guarantee compatibility. Check the labeling and battery model.

After connecting a new power source, do not rush to close the case. Turn on the device and check if charging is underway, whether the capacity is determined in the settings (code ##6485## It can show the battery status MB_06). This will prevent re-disassembly in the event of marriage.

Assembly of the body and restoration of leakage

The assembly process is reverse disassembly, but it has its nuances. The main task at this stage is to ensure that the lid is firmly fixed and, if possible, restore moisture protection (although it is impossible to recreate the factory sealability at home).

Apply a thin layer of glue to the frame of the case, avoiding getting into the camera and into the speaker holes. Excess glue can be squeezed out when pressed and stain the glass or get inside the camera module, which will lead to illumination of the images. Better apply a little less than overdo it.

Once the body parts are connected, you need to lock the smartphone with rubber rings or put it under a heavy but flat load for 1-2 hours, this will ensure uniform grip of the glue. Do not turn the device on immediately, let the chemical components of the glue stabilize.

Notice the condition of the sealing rubber bands around the buttons and connectors, if they were displaced or damaged during disassembly, they need to be repaired or replaced, and the absence of seals will make the device vulnerable to dust and moisture.

⚠️ Warning: Do not use superglue (cyanacrylate) to stick the lid; its vapors can settle on camera lenses and optics, creating an irremovable white film, and the glue itself becomes too brittle when hit.

Typical errors and troubleshooting

Even experienced users can make mistakes when working with Xiaomi. One of the most common problems is a crack in the glass in the corner when trying to fit the lid without enough heat. If you feel strong resistance, then the glue has not softened yet, and you need to add heat.

Another common mistake is the loss of screws, which are very small and easily rolled under the table, and it is recommended to use a magnetic mat or spread the screws in order of twisting them on a sheet of paper with signatures, which will save you hours of searching when you build.

If the phone doesn't turn on after assembly, check to see if the battery plume has been fully inserted. Sometimes the connector seems inserted but has no contact. Also check to see if the display plume is compressed.

If artifacts appear on the screen or a broken touch screen after assembly, the plume or connector is likely to be damaged, and re-disassembly and careful diagnosis will be required.

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Use isopropyl alcohol to clean the residue of old glue, which evaporates quickly and does not conduct electricity, which is safe for electronics.

Frequently Asked Questions (FAQ)

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The main rule of successful disassembly is patience and high-quality heating.