The Poco X3 Pro is well-deservedly a flagship smartphone, but it has a vulnerability, which is the fragility of the body when it falls. If your gadget is damaged and the image is lost or cracked, you will be faced with the question of replacing the module. It is not just a cosmetic repair, but a complex procedure that requires accuracy and understanding of the architecture of the device.
In this article, we will discuss how to add a new screen to your phone in detail, avoiding the typical errors. You will learn what tools you will need, how to safely dismantle an old module and what to pay special attention to when building. Careful study of the instructions will help you save money and restore the machine to work.
It's worth noting that the process requires care, because the back cover is glued around the perimeter, and there's a massive battery underneath. Careless handling of tools can damage the plumes or the battery itself. So before you start, make sure you're ready for the hard work and have everything you need on hand.
Preparation of the workplace and selection of components
The first step to a successful renovation is to organize the space. You'll need a clean desk with good lighting to see the small screws and connectors. Dust and static electricity are the enemies of electronics, so it's advisable to use an antistatic mat or just wipe the surface with a wet wipe.
The quality of the final result depends on the part you bought. There are many options on the market: from the original parts. OEM-The original display will ensure the correct color reproduction and operation of the fingerprint scanner, while budget counterparts can upset with a dim glow.
You'll need a specific set of tools to work with, don't try to replace the screen with your bare hands or a stationery knife, it's guaranteed to cause damage.
- 🔧 Set of screwdrivers (cross and flat) for screws of the body.
- 💳 Plastic blades and mediators for opening the body.
- 🌡️ dryer or heat pad.
- 🧲 Magnetic screw-sorting mat.
The Poco X3 Pro uses a special B-7000 or similar elastic glue to fix the back cover and display. Superglue is strictly prohibited because it crystallizes and can damage the internal components when re-repaired.
⚠️ Warning: Be sure to turn off the battery before work begins! Even if the phone is turned off, there may be a voltage in the circuit that can burn the power controller if you carelessly touch the plume.
Make sure the new screen is fully compatible with your motherboard revision. Occasionally, manufacturers make changes to the design of the plumes in different batches of devices. Check the part article for compliance with the M2102J20SG model to avoid connection issues.
Rear cover removal and battery protection
The process of disassembling the Poco X3 Pro begins with the removal of the back panel. It is attached to a double-sided tape that needs to be warmed up. Turn the dryer on the average temperature and evenly warm the perimeter of the lid for 2-3 minutes, without lingering long in one place.
After warming up, insert a thin plastic blade or mediator into the junction between the frame and the lid. Carefully guide the tool around the perimeter, gradually cutting through the adhesive layer. Do not use metal objects to avoid damaging the glass or internal plumes that pass close to the edges.
When the lid is removed, you'll see the interior of the smartphone, and you'll immediately notice a huge battery that takes up almost half the space, and you'll need to disconnect the battery plume from the motherboard to work safely, and unscrew the protective plate that covers the connectors.
☑️ Preparation for disassembly
After the power out, you can safely continue working without fear of short circuit. The screws in Xiaomi can be of different lengths, so it is recommended to lay them out in the same order in which you twisted them. This will greatly simplify the assembly.
Removal of the old display module
Now that the power is off, you can move on to retrieve the display itself. In the Poco X3 Pro, the screen is glued to the frame, but often it is changed along with the frame or neatly separated from it. If you change only the matrix with the touchscreen, the process will be more complicated and require separation.
First, remove all the elements that prevent access to the display plume, which may include a speaker, a vibrator and a control board, carefully unscrew the necessary screws and remove the components, using caution with their own plumes.
The display plume is connected to the motherboard through a connector, often covered by a metal bar. Unscrew the bar and unplug the plume, putting a plastic blade firmly upwards, sharp movements can break the contacts, so act smoothly.
If you change the module with the frame, after turning off all the plumes (display, touchscreen, sometimes speaker) the old module is simply removed from the housing. If you change only the glass and matrix, you need to heat the front panel and carefully cut the blade.
⚠️ Warning: Never pull the plume! Unplug the connectors only with special tongues or lifting the connector itself, or you will tear thin conductors.
When heating the front panel to remove the old module, be extremely careful. OLED-The optimal temperature of the front part heating is about 80-90 degree.
Installation of a new screen and connection of plumes
Before installing the new module, it is recommended to conduct a test connection, connect the new screen plumes to the motherboard without gluing it, and turn on the phone, which will make sure that the matrix, touch screen and no broken pixels are working.
If the test is successful, turn off the phone and turn off the battery again, and then you can start the final assembly, and apply a thin layer of B-7000 glue to the frame of the new module or to the body of the phone if you change the module assembly.
Carefully put the new screen in place, making sure that all the cables are in their channels and not clamped. The plumes should lie flat, without clamping. After that, press the module tightly around the perimeter for fixation.
Connect the display and touchscreen plumes to the corresponding connectors on the board. You should hear a slight click indicating the correct connection. Then return the protective metal plates to place and twist the screws.