Introduction: when you need a screen replacement and whether to take it yourself
Xiaomi Redmi 6 screen is one of the most vulnerable parts of the smartphone. Cracks from a fall, broken pixels, a broken touchscreen or a flickering backlight make users think about replacing. But should you go to a service center or can you save money by doing the repair yourself?
Replacing the display on Redmi 6 will cost 2-3 times less than in the workshop (the price of the new module is from 1500 to 3000 rubles depending on the quality). However, the process requires care: improper disconnection of plumes or damage to flexible cables can disable the motherboard. In this article, step-by-step analysis of the photo, a list of tools, typical errors and tips on choosing spare parts.
If you’ve never taken a smartphone apart, start by looking at video instructions (easily found on the “Xiaomi Redmi 6 display replacement”). Note that 80% of screen failures are not related to the sensor, but to damage to the touchscreen plume or backlight contacts – they can be repaired without completely replacing the module.
Preparation: tools and spare parts
Prepare the workspace before you disassemble.
- 🔧 Set of screwdrivers (cross-haul) PH00, flat 1.5 mm, tweezers).
- 🔥 Hair dryer or thermo-air station (for softening glue).
- 📱 Plastic blades/transmitters (to separate the screen).
- 🧲 Magnetic mat or tray (so as not to lose screws).
- 🔌 Multimeter (to check the contacts of the illumination).
- 🛡️ Protective gloves (optional but recommended).
Now, the parts, the Redmi 6 screen comes in three types:
- Original module (with the Xiaomi logo, full compatibility, but expensive).
- High quality copy (without logo, but with original plumes).
- Budget replica (may have problems with color rendering or touchscreen).
Where to buy? Proven sites:
- 🛒 AliExpress (cheap, but long wait).
- 🏬 Local parts stores (fast but more expensive).
- 🔧 Service centers (sometimes sell used originals).
⚠️ Note: If you are buying a screen with AliExpress, check with the seller if it is suitable for your Redmi 6 revision (models). M1803C6DG and M1803C6DI plume!).
Disassembly Xiaomi Redmi 6: remove the back cover and battery
Start by turning off your phone and retrieving it. SIM-maps:
- Heat the back cover with a hair dryer (~60°C) around the perimeter for 2-3 minutes. This will soften the glue.
- Put a plastic blade on the lid, starting at the bottom edge (where the charging connector is), and be careful, there are antenna wires under the lid!
- Unplug the battery.
Unscrew 4 screws on the metal battery plate|Carefully lift the plate with tweezers|Disconnect the battery plume with a flat screwdriver (do not pull the wires!)|Check with a multimeter that the voltage on the contacts = 0 V (optional)-->
Once the battery is turned off, you can start dismantling the screen, but first, take a picture of all the plumes and screws, which will help with the reverse assembly.
The important thing is that on Redmi 6, the screen is glued not only around the perimeter, but also has additional mounts near the speaker and the front camera. If the lid doesn't lend itself, warm up those areas again.
Dismantling the old display: how not to damage the plumes
The Redmi 6 screen is connected to the motherboard with three plumes:
- 📺 The matrix plume (responsible for the image).
- 👆 Touchscreen plume (sensory layer).
- 💡 Lighting plume (food) LED-ribbon).
Procedure:
- Unscrew 6 screws that fix the metal frame of the screen.
- Carefully lift the frame and put it aside.
- Disconnect the plumes one at a time using a plastic shoulder blade. Start with the backlight plume (it is the most fragile!).
| schleife | Location. | What happens if you hurt him? |
|---|---|---|
| Matrix | Upper left corner | Black screen or artifacts |
| touchscreen | Upper right corner | The sensor is not working. |
| Illumination | The bottom edge of the fee | Dim or flickering screen |
If the plume is stuck to the connector, do not pull it by force - moisten the contacts with isopropyl alcohol (70%+) and wait 10 seconds. This will dissolve the oxides.
⚠️ Warning: In some Redmi 6 revisions, the touchscreen plume is glued to the frame with tape. If it is torn, the sensor will not work correctly (for example, floating touches).
Installation of a new screen: connection and testing
Before installing the new module:
- Check if the plugs on the new screen match the motherboard.
- Clean the contacts of the connectors with a slug (to remove oxides).
- Apply a thin layer of thermopaste to the metal frame of the screen (this will improve heat sink).
Connect the plumes in reverse order:
- First, backlight (if you connect it last, you can damage the contacts).
- Then touchscreen.
- At the end is the matrix.
After you're connected, don't rush to screw the frame! Test the screen first.
- 🔋 Connect the battery and turn on the phone.
- 🖥️ Check if there are any broken pixels (use test pictures with a uniform color).
- 👆 Swipe your finger across the screen – do all touch screen areas respond?
- 💡 Make sure the lighting is uniform (no dark spots at the corners).
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If the screen flickers or the backlight is dim after you've replaced, check the density of the backlight plume, which sometimes helps to put a thin layer of insulation under it for better contact.
If the test is successful, lock the screen with screws and paste a new duct tape around the perimeter (it comes with a new module). For reliability, warm up the edges with a hairdryer (~50 ° C) and press for 10 minutes.
Common Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when replacing the Redmi 6 screen.
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Damage to the backlight plume | The screen doesn't glow or flicker | Disconnect the plume only with a plastic blade |
| Incorrect setting of the framework | Screen skewing, non-working touchscreen | Check the symmetry before fixing the screws |
| Use of low-quality glue | The screen is off in a week. | Buy B-7000 glue or original tape |
| Forgot to turn off the battery. | Short circuit, burnt-out fee | Always check with a multimeter! |
Another common problem is that the touchscreen is broken after replacement.
- 🔌 The touchscreen plume is not connected to the end (check the click of the connector).
- 🔄 Matrix and touchscreen plumes are mixed up (they are visually similar!).
- 🛠️ Damaged touchscreen controller on the motherboard (needs repair chip).
What if the screen does not turn on after replacement?
Assembly and final inspections
After successfully testing the new screen:
- Make sure that all screws are twisted (there should be 12 of them: 6 on the screen frame, 4 on the battery, 2 on the back cover).
- Check the speaker, microphone and front camera (they could move during disassembly).
- Stick a protective glass and cover - this will save the new screen from damage.
If you overheat or run out quickly after assembly, you may have forgotten to connect the antenna wires or damaged the heat paste on the processor, so take the phone apart again and check:
- 📡 Are all antenna connectors (there are 3 pieces) connected to the motherboard.
- 🔋 Does the battery plume bend (this increases resistance).
- 🌡️ Is the thermopaste applied to the Qualcomm Snapdragon 625 chip.
💡
If the phone does not see the screen after changing the screen SIM-The problem is the antenna wires, which are easily damaged when you remove the back cover, check the integrity of the contacts.