Xiaomi Redmi 6 is one of the most reliable models of the budget segment, released in its time. However, even the most durable device is not immune to accidental falls, impacts on hard surfaces or mechanical pressure that can lead to the destruction of the matrix. If your gadget appeared cracks, black spots or stopped responding to the touch screen, before the owner raises the question of the feasibility and cost of repair.
In this article, we will discuss in detail how to replace a broken display module without overpaying the masters in service centers. You will learn what tools will be required for work, how to properly disassemble the case and what nuances should be paid special attention to not damage the plumes. Self-repair requires accuracy, but it is quite possible for a person with minimal experience with electronics.
Diagnosis of damage and selection of components
Before you start disassembling, you need to accurately determine the nature of the damage. The screen of the smartphone consists of two main layers: an external glass (touchscreen) and an internal matrix (LCD or IPS). In modern budget models, including the Redmi 6, these components are soldered into a single unit, which is called a display module.
If the glass is broken, but the image is bright, the colors are not distorted, and the sensor works correctly, theoretically it would be possible to replace only the glass. However, at home, this is almost impossible because of the need for a special separator and a vacuum press, so the only solution is to completely replace the module in the assembly.
⚠️ Warning: If you have vertical stripes on the screen, spots of different colors or the image is completely gone (black screen), but the phone vibrates when turned on - this is a sign of failure of the matrix.
When buying a new part in the parts market or online stores, it is important to pay attention to quality. The original displays for the Xiaomi Redmi 6 (model M1804C3DG) are characterized by rich colors and the right viewing angle. Copies often have thicker bezels, understated brightness or uneven backlighting.
Tools and workplace preparation required
The quality of the repair depends on the preparation. You don't need complex industrial equipment, but a set of specialized tools is mandatory. Using inappropriate items, such as knives or needles, can damage internal components or even injury.
Organize your workspace so that it is well lit and free of foreign objects. Small cogs are easily lost, so prepare a magnetic mat or several containers to sort the fastener by dismantling stages.
- 🔧 Screwdriver kit: You will need a cross screwdriver (usually sized) PH00 or PH000) hull-screw.
- 🔥 Dryer or heating platform: necessary to soften the glue holding the back cover and display.
- 🎴 Plastic mediators and suction cup: required for careful uncoupling of the lid and module without scratching the body.
- 🧴 Clay. B-7000 or E-8000: special adhesive for fixing a new part, ordinary superglue can not be used.
It is also recommended to use tweezers with curved ends to work with plumes.Be sure to turn off your smartphone before starting work and remove it. SIM-microSD card and memory card.
☑️ Preparation for repairs
Rear cover removal process
The Xiaomi Redmi 6 starts with the removal of the back panel. Unlike older models, there is no removable battery, and the lid is glued around the perimeter. Heating is a critical step: if you don't heat enough, the lid will crack; if you overheat, you can damage the internal components.
Evenly warm the perimeter of the back cover with a hair dryer for 2-3 minutes. The temperature should not exceed 80-90 degrees Celsius. You can check readiness by carefully trying to tamper with the edge with a mediator: if it enters with difficulty, but the plastic does not melt, you can continue.
Once warmed up, place the suction cup at the bottom of the back cover, just above the Mi logo. Pull the suction cup up to create a gap, insert a plastic card into it. Drive the map along the perimeter, cutting the glue layer. Don't enter the tool deep so as not to damage the fingerprint scanner plume or side plumes.
⚠️ Attention: On some Redmi 6 versions, the fingerprint scanner is located on the back cover and is connected with a plume to the board.Do not pull the lid sharply, first disconnect the scanner connector if it interferes with full removal.
When the lid is removed, you'll see a metal frame covering the motherboard and the battery, which is fixed with several screws around the perimeter, unscrew all the visible screws, including those that may be hidden under stickers (although Redmi 6 usually doesn't).
Disabling plumes and removing the old module
Once the metal protection is removed, the main components are accessed, and the first thing to do is to turn off the battery to shut down the device and avoid short circuits when working with the display connectors.
Find the battery connector on the motherboard and gently disconnect it, pulling a plastic blade. Next, you need to unscrew the screws that hold the lower plastic bar (antenna module), which presses the plumes of the display and touch screen.
The Xiaomi Redmi 6 display module is connected by two main plumes: one is responsible for the image (LCD), the second is responsible for the touchpad. These can be combined into one wide plume or go separately depending on the revision of the board. Click the connectors, slightly putting them up.
- 📱 Removal of the module: after turning off all the plumes, the module can still be held on the adhesive frame. Carefully warm the front part (if the screen is still intact) or act as carefully as possible if the glass is broken.
- 🧹 Cleaning the frame: after removing the old display, there will be residues of glue on the metal frame of the case, which must be carefully removed so that the new module will fall flat.
- 🔍 Item portability: sometimes an old module may be pasted with a speaker speaker or proximity sensor. Carefully inspect the old screen and transfer these elements to a new one if they do not come with the kit.
What to do if the plume is broken?
Installation of a new display and assembly
Before the final assembly, you need to test it, plug the new display plugs into the board, plug the battery, and press the power button, and if the image appears and the sensor responds to the touch, you can continue building.
Apply a thin layer of B-7000 glue to the metal frame around the perimeter of the body. Don't apply too much glue, otherwise it can squeeze out on the screen or get into the body. Let the glue dry for 1-2 minutes to make it viscous.
Carefully frame the new display module, making sure the plumes are not clamped and lie flat. Press the module at the edges. Then put the metal protection in place, twist all the screws. Connect the battery plume.
Close the device with the back cover, pre-applying glue and on it. For reliable fixation, it is recommended to use rubber rings or stationery bands, pulling them around the perimeter for 1-2 hours until the glue is completely dry.
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The main secret of success is not to rush when unclogging the old frame and carefully clean the seat from the residue of glue before installing a new module.
Comparison of original displays and copies
There are many screen options available in the Xiaomi parts market, and understanding the difference between the two will help avoid disappointment after repairs. Original is always preferred, but copies can be an option for a temporary solution.
| Characteristics | Original (Original) | Copy (Copy/OEM) | Refurbished (Refurbished) |
|---|---|---|---|
| Brightness and colours | Natural, high brightness | Often faded, going into blue | Depends on the quality of recovery |
| Thickness of the framework | Corresponds to factory | Often wider than the original by 0.5-1 mm | Standard. |
| Sensor work | Perfect, multi-touch support | Possible delays, "dead" zones | Usually good. |
| Term of service | Long (3-5 years) | Short-term (6-12 months) | Medium. |
When choosing a part, pay attention to packaging and labeling. The plume of the original display often has a holographic sticker or a clear engraving with the model code. Copies may have careless soldering or no protective films.