Broken display glass on a smartphone is not just an aesthetic defect, but a serious obstacle to comfortable use of the gadget. Xiaomi Redmi 6 Pro, despite its popularity and reliability, is also subject to mechanical damage when falling. If the touchscreen has ceased to respond to touch or is covered with cracks that interfere with the view, the only right solution is to replace it.
Many owners carry the device to the service center immediately, but self-repair can save a significant amount of money.The process requires accuracy, a minimum set of tools and an understanding of the internal device of the smartphone. In this article, we will discuss in detail each step of replacing the touch panel so that you can get the job done efficiently and safely.
Before you start disassembling, you need to make sure that the breakdown is true, and often only the top layer of glass with the touch layer is damaged, and the image matrix remains intact, and that's when it makes sense to change only the touch screen, not the entire display module assembled, which is more time-consuming, but cost-effective.
Diagnosis of malfunction and preparation of the workplace
The first step is to identify the problem precisely, if the image on the screen is bright, without spots or stripes, but the phone does not respond to touch or reacts chaoticly, then the problem lies in the digitizer. LCD/IPS Matrix, and replacing only glass will not help.
The organization of the workspace is critical to the success of the operation: you need a clean, well-lit desk, preferably with antistatic coating or just a dry clean surface, and the absence of dust minimizes the risk of debris entering between the layers of the screen after assembly.
⚠️ Warning: Before starting any work, be sure to completely turn off the smartphone. Attempting to disassemble the on device can lead to a short circuit and failure of the power controller.
For diagnosis, it is also useful to connect an external keyboard or mouse through OTG-And we can use a cable to test the interface if the touchscreen is partially functional, and we can see if we should just change the glass, or if we should buy a module that's built.
Essential tools and supplies
The quality of the repair depends on the tools used. You should not try to blow the screen with a knife or needle, as this is guaranteed to damage the case or internal plumes. You will need a specialized set for opening smartphones.
- 🔧 Sets of screwdrivers: must have a cross Phillips #00 and a flat screwdriver of small size.
- 🎴 Plastic blade (mediator): for snapping the latches of the body without scratches.
- 🔥 Hair dryer or thermoplatform: to soften the glue that holds the touchscreen.
- 🧴 B-7000 or similar glue: to fix new glass.
- 🧼 Isopropyl alcohol and lilaless wipes: for degreasing surfaces.
Pay special attention to the choice of new touchscreen. The market offers parts of different quality: Original, OEM and low-quality copies. For the Redmi 6 Pro, it is better to look for parts with the markings that match the original to avoid sensitivity problems.
The process of dismantling the back cover and battery
The Xiaomi Redmi 6 Pro has a design with a non-removable back cover that is glued around the perimeter. To access the insides, you need to heat the edges of the case. Use a hair dryer at medium temperature, warming the perimeter for 2-3 minutes. Don't hold the hair dryer too close to not melt the plastic elements.
After warming up, carefully insert a plastic spatula or suction cup into the corner of the device. Slowly guide the tool along the seam, peeling off the lid. Inside, you will see screws that lock the motherboard protective plate, and you need to unscrew them with care so that you don't damage the thread.
The next critical step is to turn off the battery, and that's a safety requirement, and the battery plume is located under the metal plate at the top of the smartphone, and by disconnecting the connector, you'll be able to protect the circuit from the power surges as you continue to operate the display.
☑️ Checklist before touchscreen removal
Dismantling the old touchscreen and cleaning the frame
Once the protection is removed and the battery is turned off, you can start removing the display module. In the Redmi 6 Pro, the module can also be glued to the frame. Carefully tuck it around the perimeter, trying not to damage the plumes going to the control board.
If you change only the touchscreen (glass) and not the entire module, the process becomes jewelry. You need to separate the broken glass from the working matrix. To do this, the matrix is warmed up again (caution!), and the glass is cut with a thin string or blade. However, for most users, it is safer to replace the module in the assembly or carry it for professional gluing if you do not have experience.
If you remove the entire module to replace it with a new one, after removing the old part, you need to carefully clean the frame of the residue of old glue and dust. Use isopropyl alcohol and a plastic map. The surface should be perfectly smooth and clean.
⚠️ Warning: When cleaning the frame, do not use metal objects that can scratch plastic or leave shavings. Metal dust inside the housing can cause a short circuit.
It is important to check the status of the plume of the new touchscreen. It should not have cracks or cracks. The connector should be clean and smooth. Any defects during the installation phase will lead to the inoperability of the sensor.
Installation of a new module and assembly of the device
Before you stick it, you have to do a test connection, plug the new touchscreen into the motherboard, plug the module in temporarily, turn on the phone, check all the areas of the screen, multi-touch and brightness, and then you can start fixing it.
Apply a thin layer of B-7000 glue to the body frame. Don't put glue directly on the matrix or in the center of the screen. Spread it evenly around the perimeter and let it dry for 1-2 minutes to sticky. Apply the module carefully, aligning the edges.
| Assembly stage | Action. | Drying/waiting time |
|---|---|---|
| Preparation | Liquor degreasing | 2-3 minutes |
| Applying glue | Thin strip along the perimeter | 1-2 minutes (cushion) |
| Fixation | Pressing the module with rubber bands | 30-60 minutes. |
| Final assembly | Installation of the back cover | 2-4 hours (full polymerization) |
After gluing the module, it is advisable to fix the smartphone with stationery rubber bands around the perimeter for 30-60 minutes. Then connect the battery, twist the screws of the protective plate and glue the back cover, previously applying a fresh layer of glue to it.
What if the new touchscreen doesn’t work right away?
Frequent errors and calibration tips
One common mistake is not cleaning the frame enough before gluing, and the dust that gets under the glass will be visible as a black dot, and it will be impossible to remove it without re-disassembling, and users often clamping the plume, which leads to its internal rupture.
Once built, you may need to calibrate the sensor. On Xiaomi smartphones, you can do this through an engineering menu. Enter the code ##6484## in the phone app to get into the CIT menu. Select "Touchpanel" and follow the instructions for checking and calibrating.
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Use a magnetic screw mat to remember the location of the fasteners of different lengths, and if you mix the screws up, you can damage the board or the body when you twist them.
If the touchscreen is running but late or "glutty," try resetting to factory settings. Sometimes software conflicts after the iron is replaced cause drivers to malfunction. Rarely, flashing the device helps.
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The main secret of success is patience and lack of haste when working with fragile plumes and adhesive joints.