How to change the screen on Xiaomi Mi 8 Lite: a detailed guide

Xiaomi Mi 8 Lite series smartphones are famous for their stylish design and excellent value for money, but even the strongest glass is not immune to accidental fall. If your device has cracks, a “web” or a black screen when sound is working, the only solution will be to replace the display module. Many users immediately carry the phone to the service center, but self-replacement can save a significant amount of money.

The Xiaomi Mi 8 Lite repair process requires care, as the body design involves a glued rear panel and a bezel-padded display. Wrong actions can damage plumes or other components, so it is important to follow the instructions clearly. In this article, we will discuss each step in detail, from the preparation of the workplace to the final health check.

Before you start dismantling, you need to make sure that you have all the necessary tools and a new component. For Xiaomi Mi 8 Lite, most often sold a display already pasted in the frame, which greatly simplifies the task and eliminates the need for glass reglament. If you purchased only a matrix with a touchscreen without a frame, the process will be many times more complicated and will require an industrial hair dryer and B-7000 glue.

Tools and workplace preparation required

A quality screen replacement is not possible without proper preparation. You will need a clean, well-lit workplace where nothing will distract from the process. Small screws and parts are easily lost, so it is recommended to use a magnetic mat or a small container to store them.

The tool list should include specialized smartphone repair kits.Using inappropriate items such as kitchen knives or thick screwdrivers can result in scratches on the case or damage to internal plumes.

• 🔧 Set of screwdrivers (mandatory presence of cross-haired) PH00 and PH000)
• 🔥 Industrial dryer or heating pad for softening glue
• 🎴 Plastic cards or mediators for opening the body
• 🧲 Magnetic mat or organizer for screws

Special attention should be paid to the suction cup. It is necessary for a neat detachment of the back cover and the display. If the suction cup is weak, you risk breaking the remaining parts of the glass or damaging the body. Also prepare tweezers with thin curved ends for working with small plumes.

Dismantling of the back cover and protective elements

We start the dismantling of the Xiaomi Mi 8 Lite from the back. Unlike many modern smartphones, there are no screws at the bottom of the case, but there is a tray. SIM-This is a critical point, because you try to open the phone with the installed card. SIM-The card can lead to a breakage of the tray or motherboard.

After the tray is removed, the perimeter of the back cover must be heated, the glue that holds the glass softens when heated, allowing the body to open without damage, and the heat must be carefully kept without holding the hair dryer too long in one place so as not to overheat the battery or display on the back side.

⚠️ Warning: Don't heat the back cover too much! temperature higher 80-90 The degree can damage the adhesive layer of the display or cause the battery to bloat. Keep your finger in the heated area - if it gets hot, stop heating.

After warming up, insert a suction cup at the bottom of the back cover, closer to the Mi logo, but not too close to the edges. Pull the suction cup up, creating a small gap, and at that point insert a plastic card or mediator. Drive the map around the perimeter, gradually cutting through the glue layer.

Exercise special care at the top of the smartphone, where the fingerprint scanner plume is located. A sharp movement or too deep insertion of the tool can break this thin conductor. The scanner is connected to the board with a fairly short plume, so do not open the lid completely until you turn off the connector.

• 🖐️ Carefully lift the edge of the suction lid
• ✂️ Slowly lead the mediator along the edges of the body
• 🔌 Turn off the fingerprint scanner plume

When the lid is removed, you'll see the inside of your smartphone, and immediately unscrew the screws that hold the plastic shield that covers the battery and the plumes, usually around them. 10-12 They can be of different lengths, so remember or photograph their location.

Disconnecting the battery and dismantling the old matrix

The first thing you do after you remove the safety panel is to turn off the battery, which is the golden rule of electronics repair, and even if the phone is turned off, there may be a residual voltage on the board that, if the contacts are accidentally closed, can cause the power controller or the matrix itself to fail.

Find a battery connector, which is usually located in the top or center of the board under metal protection. Carefully tuck the plastic connector with a plastic blade or nail. Metal tools are not recommended to avoid short circuits.

Now, to the display itself. In the Xiaomi Mi 8 Lite, the screen is glued into the middle bezel. If you bought a framed module, you'll need to move the motherboard, battery and other components from the old bezel to the new one. If you change only the glass in the frame, the process is simplified to unscrew the screws and turn off the plumes.

Unscrew all the screws holding the display module. Then carefully disconnect the two main plumes: one responsible for image (LCD), the other for touch control (Touch), they can be located next to or above each other, raise the locking bar (if any) and pull the plume strictly up.

Once all communications are turned off, you can remove the old screen. If it's held on glue, use a hair dryer to heat the front (if the screen is not broken) or just gently poke the frame. In the case of the Mi 8 Lite, the screen is usually held on double-sided tape around the perimeter of the frame.

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Before you unscrew the dynamic speaker screws at the bottom of the case, be sure to disconnect its plume from the motherboard. A long plume goes through the entire body, and it is easy to damage if you sloppyly remove the bottom of the frame.

Transfer of components and assembly of a new module

If you have a bezelless display, you will have to reglue the old screen. However, for the Xiaomi Mi 8 Lite, it is highly recommended to buy a module in a frame. This will save you from having to scrape the old glue, align the glass and wait for drying, which often leads to dust under the matrix.

The process of transferring components begins with the motherboard. Carefully remove it from the old frame, turning off all remaining plumes (cameras, buttons, main speaker). Set the board in a new frame, combining screw holes.

Then there's the battery line. In some cases, the glue under the battery may still be fresh and it will easily fall into a new place. If the old battery is inflated or the glue has lost its properties, use a new double-sided tape. Never use superglue or other aggressive liquids near the battery and plumes.

⚠️ Warning: When installing the battery, make sure the battery connector is not squeezed and lies flat.A slight skew can cause the phone to not turn on or show the wrong percentage of charge.

Then set the bottom board (charging) and the main speaker. Make sure the speaker grid matches the holes in the case. The bottom speaker plume is very thin and long, run it gently along the groove, avoiding any clamps.

• 📱 Set the motherboard in a new frame
• 🔋 Lock the battery on a two-way scotch
• 🔊 Put the vibrator and lower speaker back in place.
• 🔌 Connect all the plumes to the motherboard

Once you have all the components in the new frame, plug in the display plumes. First, put the touchscreen plume, then the display (or vice versa, depending on the connector design, before clicking). Make sure that the locking bars are pressed by the screws.

Final assembly and functional verification

Before you twist all the screws and stick the back cover, you have to do a primary check, plug the battery in and press the power button, and if the screen catches fire, that's half the success.

Do a thorough touchscreen test, draw lines around the perimeter of the screen, check corners where there are often "dead zones," and check the front camera, speakers and proximity sensor.

If everything works correctly, you can start the final assembly. You can put the metal plate in place, twist all the screws. Pay attention to the length of the screws: you can't screw long holes into short holes, you can punch through the board.

Apply new glue or double-sided tape to the perimeter of the back cover. Press the lid evenly against the body and lock the smartphone with gums for 15-20 minutes to polymerize the glue. Don't turn the phone on right away, let the components settle down.

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The key to a successful replacement is that there are no artifacts on the screen and the sensor is working in all areas, so if you have problems after the assembly, don't be afraid to disassemble the phone and reconnect the plumes.

Typical errors and operating tips

The most common mistake when replacing the screen with Xiaomi Mi 8 Lite is damage to the plume of the underscreen camera or light sensor. These components are located at the top and are often glued to the frame. When removing the old display, they are easy to tear off.

Another problem is the dust under the screen, and if you change the glass without a frame at home, the risk of dust is very high, even a microscopic villi will be visible on a white background, so a framed module is not just a convenience, but a guarantee of the purity of the image.

After the replacement, the sensor is calibrated. Xiaomi’s engineering menu has tests to help determine how accurately the touchscreen works. Use the code ##6484## in the phone app to enter the engineering menu.

Take care of your refurbished smartphone. Use a high-sided protective glass and cover to minimize the risk of repeated damage. A well-conducted screen replacement will extend the life of your Xiaomi Mi 8 Lite for several more years of active use.