Xiaomi Redmi Note 8 Pro has long been one of the most popular devices of the mid-range, delighting users with an excellent value for money. However, the glass case and large screen diagonal make the gadget vulnerable to falls, which often leads to a split matrix or protective glass. Self-replacement of the display is a complex but quite real process that saves a significant amount of money compared to going to the service center.
Before you start taking action, you need to be aware of the risks and prepare the workplace. Replacing the screen requires not only quality components, but also specialized tools, as well as accuracy, since the inside of the case are fragile plumes and modules. In this article, we will discuss in detail each stage of dismantling and assembly to minimize the likelihood of errors.
It is important to understand that the result depends on the quality of the purchased display module and your skills with small electronics. Do not expect that the process will pass quickly: even an experienced wizard spends 40 to 60 minutes on this operation, and the beginner will need more time to carefully study each step.
Preparation of the workplace and necessary tools
The success of the operation to replace the display by 80% depends on proper preparation, you will need not only a new screen, but also a set of tools that will provide safe access to the insides of the smartphone, ignoring this stage can lead to damage to other components or injuries.
You will need to:
- 🔧 Set of screwdrivers (cross-haired) PH000 and flat) for the screwing of the shell.
- 🔥 Hair dryer construction or household (for heating the glue under the back cover).
- 💳 Plastic card or mediator for unscratched lid.
- 🧪 Isopropyl alcohol and suction cup for careful glass lifting.
- 🧲 Magnetic mat or organizer for sorting screws of different sizes.
⚠️ Note: Using a conventional stationery knife instead of a plastic card to open the Redmi Note 8 Pro case can lead to the glass layering of the back cover or damage to the fingerprint scanner.
Pay special attention to lighting. You can't work in dim lights or dusk, because you might miss the small details of the attachment or damage the plume. Organise the space so that all the tools are at hand, and the small parts can't roll or get lost.
☑️ Ready for repair
Algorithm for Safe Rear Cover Disassembly
Xiaomi Redmi Note 8 Pro has a glass back panel that is attached to a two-part glue around the perimeter of the body. To remove it without damage, you must preheat the adhesive composition. Heat should be made evenly, avoiding local overheating at one point, especially in the area of the camera.
Turn on the device and check the touchscreen and images before turning off. Then turn off the smartphone completely and remove the tray. SIM-This is a must, because having a tray can create extra stress on the frame when you heat it up, and put the phone down on a soft, but not fluffy surface.
Heat the perimeter of the back cover with a hair dryer for 2-3 minutes at a temperature of about 80-90 degrees. After heating, gently insert the suction cup at the bottom of the cover and slightly pull up, creating a gap. Insert a plastic card or mediator into the resulting gap and run it along the perimeter, cutting the adhesive layer.
Nuances of work with a fingerprint scanner
Once the lid is successfully removed, you will have access to the main board, battery and vibration module. The screws that hold the protective plastic slats can be of different lengths, so sort them right away. The top screws are usually shorter than the bottom ones, and entanglement can damage the thread or the board itself.
Disconnecting the battery and removing protective screens
The first step after opening the case is to turn off the battery, a critical safety step that prevents short circuits from being pulled off by other plumes. On the Redmi Note 8 Pro, the battery connector is placed under a lower plastic bar secured by multiple screws.
Carefully unscrew all the screws holding the lower and upper clamping bars. Use a magnetic screwdriver to keep the fastener inside the case. Once you remove the plastic, you'll see the connectors of the main modules. Take a plastic blade and, with a light upward movement, snap the battery plume off the motherboard.
Then you have to disconnect the display and touchscreen plumes, which are located at the top of the board and are often covered by a metal screen or an additional protective pad. Be very careful: the plumes of the display module are very thin and easily break when handled carelessly.
| Component | Location. | Type of attachment | Risk of damage |
|---|---|---|---|
| Battery | The bottom part | The plume (latch) | Low. |
| Display (LCD) | Upper part | The plume (latch) | High-pitched |
| touchscreen | Top part (nearby) | The plume (latch) | High-pitched |
| Underscreen camera plume | Side of the display | The plume (latch) | Medium. |
Once all connectors are turned off, you can remove the main board. However, the Redmi Note 8 Pro has a caveat: the main camera plume passes under the board or through special channels. Some versions require partial dismantling of the elements to completely free the board.
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Before disconnecting any plume, it is recommended to carefully lift the connector latch (if any) with a plastic blade, which will reduce the force required to extract and reduce the risk of contact breakage.
Removal of the old display module
The most difficult step is to remove the broken screen. The display module in the Xiaomi Redmi Note 8 Pro is glued to a plastic frame around the perimeter. The glue here is quite aggressive, so you need to reheat the front of the device.
Remove all the screws holding the frame if they remain. Then warm the front panel evenly with a hair dryer. Don't hold the hair dryer too close so as not to damage the plastic elements of the frame or deform them from high temperature. 2-3 minutes of heating is enough.
Using a thin line or a special string, walk gently around the perimeter of the screen, separating the glass from the frame. The movements should be sawing, but smooth. If you feel strong resistance, add a little more heat. Trying to tear the screen by force will break the frame, which will require replacement or difficult repair.
⚠️ Warning: When working with heated glass of a broken screen, use safety glasses. Small fragments can fly into the eyes, which will lead to serious injuries.
Once the glass is separated, clean the frame of the old glue, which is ideal for isopropyl alcohol and plastic scraper, and the surface must be perfectly smooth and clean, otherwise the new screen will lie unevenly, and there may be lights or voids.
Installation of a new screen and assembly of the device
Before the final assembly, make sure to test the new module. Without gluing the screen, plug the display and touchscreen plumes into the motherboard, plug the battery and turn on the phone. Check the image, colors and sensor response.
If everything is working correctly, turn off the phone and turn off the battery again. Apply a new glue (B-7000 or special adhesive layer) on the frame with a thin, uniform layer. Carefully install the new display module, aligning it with the frame, and slightly press the perimeter.
Let the glue dry for 10-15 minutes, then set the main board in place. Connect all the plumes in the right sequence: first the battery, then the display and the touchscreen. Make sure each connector snaps to a characteristic click.
The final step is to put the back cover in place, clean it of the old glue, apply a new adhesive around the perimeter, and press it gently against the body, and you can use rubber rings or weights to better fix it. 20-30 minutes until the glue is finally grasped.
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The quality of the glue and the careful cleaning of the frame from old residues are major success factors. Poor cleaning will cause the screen to dangle or unstuck after a week of use.
Typical errors and troubleshooting
Even following the instructions, beginners often make errors that can cause the device to fail. One of the most common problems is the white screen or the lack of image after assembly, which often indicates poor contact of the plume or damage to it.
If the touchscreen isn't working properly (push skips, phantom clicks), check if the plume is clamped when assembled. Also, the problem may be with the newest module if it's of poor quality. Cheap screen copies for the Redmi Note 8 Pro often have worse color reproduction and sensitivity.
- 🔋 Quick discharge: If the battery starts to run out faster after replacement, check if you damaged the battery plume or the battery itself during dismantling.
If you have a problem, don't panic. Disassemble the device again, recheck all connections. Often, just reconnect the plume to fix the problem. If the problem is in a new screen, it will have to be replaced under warranty.