How to Disassemble Xiaomi Redmi 8T: The Complete Guide

Modern smartphones like the Xiaomi Redmi 8T are designed with aesthetic integrity in mind, which often makes it difficult to access internal components. Disassembly of the device can be required for various reasons, from replacing broken glass to installing a new battery or cleaning a speaker from dust. Understanding the design of the gadget is the first step to successful and safe repair, which will save money on the services of the service center.

But you have to keep in mind that there are always risks involved in self-interference with hardware, that the interior of the smartphone is dense, and the components are secured with adhesives and screws of different calibers, that doing the wrong thing can damage the plumes or even cause the motherboard to fail, which is why it's important to follow the algorithm and use a specialized tool.

In this article, we will take a closer look at the process of dismantling the Redmi 8T, paying attention to the nuances of peeling off the back cover and disconnecting the plumes. You will learn which screws to unscrew first and how not to damage fragile elements of the structure. Preparation of the workplace and the availability of good lighting is the guarantee that you do not lose small parts in the process.

Tools and workplace preparation required

Before you start dismantling, you need to organize your workspace, you need a table with good lighting and, preferably, an antistatic mat to eliminate the risk of damage to electronics by static discharge, and the absence of unnecessary items on the table will help you avoid losing small screws that can easily get lost among the pile of the carpet or slide to the floor.

For a high-quality disassembly Xiaomi Redmi 8T, you will need a minimum set of tools that can be purchased at any electronics store.The main attention should be paid to the quality of the sucker and mediators, as they will contact the body and the adhesive layer. Using metal objects in the early stages can lead to scratches or short circuits.

• 🛠️ Set of screwdrivers (cross-haired) PH00 and flat) for twisting screws of different sizes.
• 🔥 A hair dryer or heating plate to soften the glue under the back cover.
• 📱 Plastic mediators or shoulder blades for neat opening of the body without damage.
• 🧲 Magnetic mat or containers for sorting screws by disassembly stages.

Excessive temperature rise can damage OLED-The battery is already degraded, or it is bloated if it has defects. 80-90 degrees Celsius, while warming should be evenly, without holding the hair dryer at one point for too long.

Removal of the back cover and access to the insides

The first step in dismantling the Redmi 8T is to dismantle the rear glass panel, which is mounted on double-sided tape around the perimeter and in the center, so it requires preheating. Turn on the hair dryer and evenly warm the edges of the back cover for 2-3 minutes, constantly moving the air flow so that the glass does not overheat locally.

⚠️ Warning: Do not heat the camera area too much, as optical stabilization and sensors may suffer from high temperatures.

Once heated, apply the suction cup to the bottom of the back cover and pull up slightly, creating a small gap. Insert a plastic mediator into the resulting gap and start driving it along the perimeter of the smartphone, cutting the adhesive layer. The movements should be sliding, without sharp jerks, so that the glass does not crack.

When the perimeter glue is passed, you can gently lift the lid. Don't open the smartphone completely right away, as the fingerprint scanner plume may be glued to the back (in some versions) or just be very close to other components.

Dismantling the protective plate and disconnecting the plumes

When you remove the back cover, you'll see an interior space that's covered by a plastic safety plate that has the main components mounted on it, and to access the motherboard and the battery, you'll need to unscrew all the visible screws that hold the plate, and they'll usually vary in number and they can be of different lengths, so it's important to remember or record their location.

Pay special attention to the screws around the main camera module and at the bottom of the board. The motherboard in the Xiaomi Redmi 8T is quite compact, and the plumes are tightly connected. Before removing the protective plate, you need to turn off all connectors going to the motherboard to avoid breaking contacts when lifting the plastic.

Use a plastic blade or nail (in dielectric gloves) to snap the connectors of the plumes. The movement should be directed upwards from the board. The display plume and touchscreen are usually the widest and require the greatest care. Once all connections are turned off, you can carefully remove the plastic panel, opening access to the main nodes.

Replacement of the battery and lower plume

The battery pack in the Redmi 8T takes up a significant portion of the internal volume and is fixed with a powerful adhesive layer. To extract it, it is recommended to reheat the battery area through the rear frame (if it is not already removed) or use special adhesive solvents such as the B-7000 or isopropyl alcohol, carefully introducing them under the edge of the battery.

Never try to rattle a battery with a metal screwdriver or knife. A lithium polymer battery can ignite or explode when punctured. Use a plastic card or a special blade with rounded edges, gradually loosening the battery as the glue softens. If the battery is swelling, handle it with utmost care, avoiding pressure.

The bottom plume contains a USB Type-C charging connector and a microphone, which is mounted with multiple screws and connected to the main board with a long plume running through the entire body. When replacing this component, it is important to properly place the plume in the guide channels so that it does not clamp during assembly, which could lead to signal loss or charging problems.

⚠️ Warning: When installing a new battery, make sure the connector sits tightly in the connector, but don’t put too much effort into not breaking the contacts on the board.

After installing a new battery or charging plume, take your time to close the case. Connect the display connector to the motherboard and check the device's health by turning it on, which will make sure the replacement is successful and the new component is functioning correctly before you lock all the screws back in.

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Use double-sided electronics tape or a special B-7000 glue to lock in the new battery to ensure reliable mounting and heat sink.

Removal and installation of the display module

Replacing the screen with Xiaomi Redmi 8T is one of the most difficult operations, since the display module is often assembled with a frame. If you change only glass or touchscreen, the process requires separation and experience, but when replacing the module in the assembly, the task is to transfer the insides to a new housing.

First, you have to remove all the components from the old case: motherboard, battery, cameras, speakers and plumes. The display module is attached to the frame around the perimeter with glue. When you transfer the electronics to the new frame, make sure that all the seats are the same and the screw holes have no burrs.

Pay special attention to the plume of the lights and touchscreen. They are very thin and easily break when you carelessly handle. When you put the plume in a new frame, make sure that it does not form clamps. The touchscreen controller is sensitive to static, so try not to touch the contacts with your fingers.

Once you've assembled the whole sandwich in the new frame, before you finish the tape, do a test, check the multi-touch at all corners of the screen, the proximity sensor and the brightness of the backlight, and only when you're sure that it's fully functional, you can apply the new glue and fix the back cover.

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Replacing the display assembled with a frame greatly simplifies repair and reduces the risk of damage to other components during resticking.

Assembly of a smartphone and checking the performance

The Redmi 8T is assembled in reverse disassembly order. Start by installing the motherboard and connecting all the plumes. Make sure each connector is in place with a characteristic click. Then fasten the plastic plate with screws, keeping order to avoid skewing.

Before sticking the back cover, thoroughly clean the ends of the case and the lid itself of residues of old glue and dust. Degrease the surface with an alcohol wipe. Apply a new adhesive compound or use a pre-cut adhesive, which often comes complete with spare parts.

• 🔌 Connect the charging plume and check the indicator reaction.
• 📶 Check Wi-Fi, Bluetooth and cellular network.
• 📸 Take test shots on all cameras, including the front.
• 🔊 Check the sound of the speakers and the microphone through the recorder.

The final step is to put the back cover in place, press it around the perimeter and lock it with rubber bands or loads on it. 15-20 Do not turn the phone on under load immediately, let the system fully boot and make sure the device does not warm up in idle mode.

⚠️ Warning: If the smartphone doesn't turn on or discharges quickly after assembly, it's possible that one of the plumes is not fully connected or damaged during installation.

Frequently Asked Questions (FAQ)