Xiaomi Mi A2 Lite is a popular budget smartphone with good hardware, but its weak point is a fragile screen. Falling from a height of 1 meter or a bad hit often leads to cracks, broken pixels or a complete failure of the display. If you encounter this problem, do not rush to give the phone to the service: You can replace the screen yourself, saving up to 70% of the cost of repair.
In this article, we will take you through the entire process from A to Z, from fault diagnosis to final testing, how to pick up the right part (original vs. copy), what tools you will need, and what errors cause your touchscreen or backlight to fail, and compare the prices of modules in 2026 and give you tips on how to prevent relapse.
Warning: Repair requires care and patience, and if you've never taken your smartphones apart, practice on an old device or watch video demos before you start. Ready?
1. Diagnosis: Is the screen really to blame?
Before replacing, make sure that the problem is in the display module, not in the plume, motherboard or battery.
- 🔍 Cracks or chips on the glass (even without disturbing the touch screen).
- 🖥️ Black screen when the backlight is working (buttons are illuminated, vibrates when the bell is ringing).
- 👆 Part of the touchscreen is not working or "ghost" touches are triggered.
- 🌈 Multicolored stripes or artifacts in the image.
If the smartphone doesn’t turn on at all (no vibration, charging indication), the problem may be in the battery or the board.
- 🔋 Connect the charger - whether the indicator is on?
- 🔌 Try another cable and power supply.
- 📱 Connect to a PC – is the device detectable (even without a screen)?
⚠️ Warning: If your smartphone overheats or smells like a burn after a fall, don't turn it on, it's a sign of a short circuit on the board. Remove the battery immediately (if possible) and contact the service.
For accurate diagnosis, connect Mi A2 Lite to the TV or monitor through USB-C → HDMI Adapter (if supported) If there is an image, is it the screen or the plume, is there no image, is there a deeper problem, is the motherboard or the firmware.
2. Selection of spare parts: original vs. copy
The quality of the display module depends on 90% of the success of the repair. A2 Lite is available in three types of screens:
| Type of module | Price (2026) | Pluses | Cons |
|---|---|---|---|
| Original (OEM) | 4 500 — 6 000 ₽ | Perfect color reproduction, full compatibility, long service life | High price, difficult to find in stock |
| Copy of Premium | 2 800 — 3 500 ₽ | Good quality, close to the original, availability | There may be problems with autobrightness or sensitivity |
| Budget copy | 1 200 — 2 000 ₽ | Low price, quick delivery | Weak backlight, broken pixels, short service life |
Where to buy it?
- 🛒 AliExpress is a cheap copy, but it’s a long wait (3-4 Look for rated sellers. 98%+.
- 🏬 Local stores (like "Fix-Price Repair" or "Chip and Deep") are faster but more expensive 20-30%.
- 🔧 ServeHere or eBay – original modules from sales from Xiaomi warehouses.
⚠️ Note: When buying, check whether there is adhesive tape for mounting the screen and screwdriver. T3. Many sellers sell them separately, and without them to install the display is impossible.
Critical: For Mi A2 Lite is suitable only modules with labeling JDI DSI or BOE DSI (It's on the sticker at the back of the screen. 6/6A They are similar but incompatible – touchscreen and sensors do not work!
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Before you buy, ask the seller to send a photo of the sticker on the module. The original must have a hologram of Xiaomi and a serial number that matches your phone number (checked through *#06#).
3. Necessary tools
You'll need a minimal set of tools to replace the screen. Don't skimp on quality, cheap plastic blades break and scratch the body.
Hair dryer or thermo-air station (power) 300-500W)
Plastic mediators (2-3 pc, thickness 0.15-0.2 mm)
Screwdriver. T3 (screen-screw)
Tweezers with curved ends
Screen suction cup (diameter) 4-5 centimeter)
Isopropyl alcohol (90%+) and napkins without pile
New display module with adhesive tape
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In addition, the following may be useful:
- 🔋 External battery (if the battery is discharged below 20%).
- 📱 Second second SIM-map for testing the communication module after assembly.
- 🧲 Magnetic mat (so as not to lose cogs).
If you do not have a hair dryer, you can use a household iron (set the temperature "Silk" and warm the screen through the foil). 2-3 But this method is risky, because it's easy to overheat the charge!
How to replace specialized tools?
4.The Xiaomi Mi's step-by-step disassembly A2 Lite
Before starting work, turn off the phone and remove it. SIM-The map from the tray. Follow the instructions:
- Warm up the screen. Heat the display edge with a hair dryer. 60-70°C) during 2-3 Move the hair dryer in circular motions so that the glue softens evenly.
- Screen compartment. Suck the suction cup to the display angle (where the plume connector is) and gently pull up. Put the plastic mediator into the gap.
- Perimeter pass. Slowly guide the mediator along the edge, separating the screen. Don't go more than 2 mm deep, plumes pass inside!
- Turn off the plume. When the screen separates, turn off the 4 screws. T3 on a metal plate and carefully disconnect the plume with tweezers (pull the black tongue, not by the wires!).
At this stage, many people make critical mistakes:
- 🔥 Overheating fee - keep the hair dryer at a distance 5-7 cm and don't heat up any longer 3 minute.
- ⚡ Train damage - do not pull the wires, only the connector!
- 🔩 Loss of screws -- there's only 4, but they're tiny. Use a magnetic mat.
⚠️ Warning: If you hear a crunch or see sparks when you separate the screen, stop disassembling immediately! This is a sign of battery damage. Further manipulations may cause a fire.
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The most common breakdown in disassembly is a broken backlight plume, which goes under the battery and is attached to the board with a tiny connector, and if the screen is running after assembly, but there is no backlight, that plume is the fault.
5. Installation of a new screen
Before installing the new module:
- Clean the phone frame of the old glue with isopropyl alcohol.
- Check the integrity of the sealing rubber around the speaker and microphone.
- Remove the protective film from the inside of the new screen (if any).
Next:
- Connect the new screen plume to the circuit board connector. Make sure it sits before the click.
- Secure the plume with a metal plate and twist 4 screws T3.
- Apply a new adhesive tape around the frame perimeter (don’t save money – it ensures tightness!).
- Carefully attach the screen, starting at the top, and press it around the edges.
For reliable fixation, warm up the edges of the screen with a hairdryer (temperature) 50°C) 1-2 ● Put the phone under a press (for example, a stack of books) 10-15 minute.
Important: Don't turn on the phone right after assembly! 1-2 Otherwise, the screen may move away and you'll have to repeat the procedure.
How to check the screen before final assembly?
Testing and calibration
After assembly, turn on the phone and check:
- 📱 Touchscreen: Swipe your finger through all zones, check the multi-touch (two fingers).
- 🔦 Backlight: Make sure there are no dark spots or uneven glows.
- 🎨 Colors: Open a photo with gradients - are there any color distortions?
- 🔊 Sensors: Check the proximity sensor (during the call) and light (auto-brightness).
If the touchscreen is not working properly (for example, the touches are offset), calibrate:
- Go to Settings → System → Additional → Screen Calibration.
- Follow the instructions on the screen (click on the dots that appear).
- Reboot the phone.
If after replacement the screen flickers or changes its brightness on its own, the problem is:
- Bad contact of the plume (reconnect it).
- Non-original module (some copies do not support autobrightness).
- Damaged backlight plume (requires repair or replacement).
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If the speaker or microphone stops working after the screen is replaced, check if the holes are covered with sealing rubber.
7. Frequent mistakes and how to avoid them
Even experienced masters sometimes make mistakes when replacing the screen with Mi. A2 Lite. Here are the most common ones:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Use of metal tools | Scratches on the frame, damage to plumes | Only work with plastic mediators. |
| Incomplete glue heating | The screen doesn't separate, the glass breaks. | Greet. 3-4 minutes, check the glue's malleability |
| Strong pressing of the screen during assembly | Cracks on the new module, damage to the matrix | Press evenly, without effort. |
| Ignoring the plume check | The touchscreen or backlight doesn't work. | Test the screen before final assembly |
Another common problem is that the screen will come off after the repair.
- 🧴 Cheap glue (use only the original tape) 3M).
- 🌡️ Insufficient heating during installation.
- 💦 Infection of dust on the adhesive surface.
If the screen does move, don't try to glue it with superglue or tape, it will cause it to detach and damage the matrix, and you'd better buy a new duct tape and repeat the procedure.
8. Cost of repair: service vs. self-replacement
Prices for screen replacement Xiaomi Mi A2 Lite in 2026:
| Repair option | Cost (₽) | Timeline | Guarantee |
|---|---|---|---|
| Official Xiaomi service | 7 000 — 9 000 | 3-7 days | 6-12 months |
| Local service centre | 3 500 — 5 000 | 1-3 days | 1-3 months |
| Self-replacement (original) | 4 500 — 6 000 | 2-4 hours | Depends on the store. |
| Self-replacement (copy) | 1 500 — 3 000 | 2-4 hours | No. |
Self-repair is beneficial if:
- 💰 You have a limited budget (savings up to 50%).
- ⏱️ Need to be urgent (not waiting for the service line).
- 🔧 I have experience with technology.
Please contact the service if:
- 🛠️ I need a job security.
- 🔥 The phone has additional breakdowns (for example, after falling into the water).
- 📱 You've never taken out smartphones.
Remember: incorrectly changing the screen can lead to loss of functionality of the phone (for example, failure of the camera or communication module).