Broken screen on Xiaomi Mi A2 Lite is one of the most common problems that owners of this smartphone face: dropped the phone, cracked or black stripes, and the sensor stopped responding to touch? If you have the patience and the right tools, you can replace the display yourself. In this article, we will discuss the entire process in detail, from selecting a new screen to the final test.
Do you have to do the repair yourself? It depends on your experience. If you've already disassembled your gadgets or even held a screwdriver in your hands, the chances of success are high. The main advantage of self-replacement is saving: In the service, the work will take from 1,500 to 3,000 rubles, while the new screen will cost 2,000 to 4,000 rubles (depending on quality). A2 Lite has a fragile battery plume and thin connectors – one careless move can lead to additional breakdowns.
Before you start, assess the extent of the damage. If there are only cracks on the screen, but the image is displayed and the sensor is working, the problem is only glass. In this case, you can only replace the outer layer (if you find a workshop with this service), but if the screen is completely black, there are artifacts or the touchscreen does not respond, you have to change the entire display module.
1. Which screen to choose for Xiaomi Mi A2 Lite?
The first and most important step is to buy a quality display module, and there are three types of screens on the market for Mi. A2 Lite:
- 🔹 Original (OEM) — The quality is high, but the price can reach 4 000-5 000 rubles.
- 🔹 Premium-class copies are produced in the same factories as the originals, but without the Xiaomi logo. Cost less (2500-3500 rubles), but may have minor differences in color reproduction.
- 🔹 Budget replicas are the cheapest (1,500-2,500 rubles), but often sin with poor touchscreen sensitivity, distorted colors and short service life.
Where to buy? Best options:
- 🛒 AliExpress is a big choice, but a long wait (2-4 weeks) Look for sellers with a rating above 98% and reviews of a particular screen model.
- 🛒 Official parts distributors (e.g. GSMMart or ETradesupply) – fast delivery, but prices are higher.
- 🛒 Local radio parts stores – you can touch the product before buying, but the range is limited.
⚠️ Note: Before buying, check whether the screen comes with adhesive tape for fixing and a screwdriver for removing latches. Often sellers save on small things, and you will have to buy them separately.
How to check the screen before installing? If you buy offline, ask the seller to connect the module to a test stand or other Mi. A2 Lite. Pay attention:
- 🎨 Color rendering (whether there is yellow or greenish tint).
- ☝️ Touchscreen sensitivity (check multi-touch and edge zones).
- 🔦 Lighting (whether there are dark spots or uneven glow).
2. Screen replacement tools
Without the right tools to disassemble Xiaomi Mi A2 Lite is almost impossible. Here's a complete list of what you'll need:
| Tool. | Appointment | Where to buy | Price, ₽ |
|---|---|---|---|
| Plastic mediator (2-3 units) | For careful smearing of the body and disconnection of adhesive joints | AliExpress, electronics stores | 50–150 |
| Screwdriver cross (PH00) | For twisting the screws of the back cover | Any hardware store | 100–200 |
| Suction (1-2 pcs) | To remove the screen after heating | Phone repair kits | 150–300 |
| Fryer-dryer | To soften the glue (temperature 60-80 ° C) | Household stores, AliExpress | 500–2 000 |
| Tweezers (thin, curved) | To work with plumes and small details | Radio parts stores | 100–300 |
In addition, the following may be useful:
- 🧲 Magnetic mat or screw tray (so as not to lose small details).
- 🧴 Alcohol or contact cleaner (to remove glue residues).
- 📦 Double-sided tape or glue B-7000 (if there is no screen in the set).
⚠️ Warning: Do not use metal mediators or knives to tweak the body! A2 Lite has an aluminum frame that's easy to scratch.Plastic tools minimize the risk of damage.
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If you don’t have a thermal air station, you can use a normal hair dryer, the main thing is to keep it at a distance of 10-15 cm from the screen and not overheat (maximum 2-3 minutes per seat).
3. Preparation of the phone for disassembly
Before you start dismantling, you need to turn off the device and ensure comfortable conditions for work.
Turn off the phone and remove it. SIM-memory-card
Charge the battery by 30-50% (in case of testing)
Make a backup copy of the data (in case of reset)
Prepare a clean, well-lit workplace
Put all the tools in the available-->
Pay special attention to power outages, even if the phone is off, there may be residual charge left in the circuits, so that the device is completely powered down:
- Turn off the smartphone with a long press on the power button.
- Wait 1-2 minutes (capacitors will be discharged).
- If possible, disconnect the battery after opening the case.
We also recommend taking a picture of the original state of the phone (especially the back cover and the location of the screws).This will help with the reverse assembly. A2 Lite, watch video disassembly on YouTube – visually the process is perceived easier.
What happens if you don’t turn off the battery before work?
4.The Xiaomi Mi's step-by-step disassembly A2 Lite
Now, to the most critical stage, which is disassembling the phone, you have to be careful and take your time.
Step 1: Removing the back cover
- Place the phone down on a soft surface (such as a napkin).
- Heat the edge of the back cover with a hair dryer around the perimeter for 2-3 minutes. The glue will become softer, and the cover will be removed more easily.
- Insert a plastic mediator into the gap between the lid and the case (start at the bottom edge where the USB-Type C connector is).
- Carefully drive the mediator around the perimeter, putting the latches on. Don't put too much effort into it!
Step 2: Battery disconnection
- After removing the lid, you will see the battery glued to the body.
- Carefully tuck the battery plume (it is under a black protective tape) and disconnect it from the motherboard with tweezers.
- If the plume does not respond, heat this area with a hairdryer a little (no more than 10 seconds!).
Step 3: Unscrewing screws and removing the motherboard
- Unscrew all the screws fixing the metal plate over the motherboard (there are about 10-12 pieces).
- Remove the plate and gently disconnect all the plumes leading to the motherboard (camera, speaker, buttons).
- Take the board out and put it aside. Don't touch the contacts with your hands, static electricity can damage the chips.
Step 4: Removing the Old Screen
- Heat the screen around the perimeter with a hairdryer (corners are especially vulnerable!).
- Stick the suction cup to the glass and pull it up. If the screen doesn't respond, repeat the heat.
- Once a gap appears, insert the mediator and carefully separate the screen from the frame.
- Disconnect the display plume from the board (it is located at the top of the phone).
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The most common mistake in disassembling is to damage the battery plume, and if it breaks, the phone won't even turn on with the new screen. Always disconnect the battery first!
5. Installation of a new screen and assembly of the phone
When the old screen is removed, we start installing a new one, and it's important to be consistent and take your time.
Step 1: Preparation of a new module
- Remove the protective film from the inside of the screen (if any).
- Check if the tape is adhesive. If not, apply a thin layer of glue. B-7000 perimeter.
- Make sure that there is no contamination on the plume of the new screen (wipe with alcohol if necessary).
Step 2: Connecting the plume
- Carefully connect the new screen plume to the motherboard connector, which should snap with a click.
- Make sure the plume is not twisted and stretched.
Step 3: Installation of the screen
- Line the new screen around the frame and gently press it, starting at the top.
- Make sure there are no gaps between the screen and the body, warm the edges with a hair dryer if necessary and press harder.
Step 4: Reverse Assembly
- Install the motherboard in place and connect all the plumes (cameras, speakers, buttons).
- So, turn all the stains (not to be worn).
- Connect the battery plume and fix it on a two-way tape.
- Set the back cover starting at the top and snap it around the perimeter.
⚠️ Warning: Don't turn the phone on immediately after assembly! Let the glue grab (at least 10-15 minutes) If the screen isn't glued tightly, it will eventually cause dust or moisture to appear underneath.
6. Testing and calibration of the new screen
When the phone is assembled, you need to check the performance of the new display.
Image verification
- Turn on your phone and make sure the screen lights up without artifacts (strips, stains, flickering).
- Check brightness and contrast: Open a photo with clear lines and gradients.
- If the colors seem unnatural, go to Settings. → Screen. → Color mode and select the appropriate profile.
Touchscreen testing
- Open the keyboard and check the reaction to the presses on all areas of the screen.
- Use the Touch Screen Test app (available on Google Play) to check for multi-touch.
- Pay attention to the edge zones – they often suffer from poor-quality installation.
Sensor calibration (if necessary)
- If the touchscreen is not responding accurately, calibrate through the engineering menu:
- In the phone app, type ##6484##.
- Select Touch Screen Test and follow the instructions on the screen.
If after testing there are problems:
- 🔄 Screen not turned on: check the connection of the plume (it may not be fully inserted into the connector).
- 🎨 Distorted colors: try replacing the plume or check the compatibility of the screen with your model.
- ☝️ Touchscreen does not work: turn off the phone, remove and reconnect the plume.
7. Frequent mistakes and how to avoid them
Even experienced wizards sometimes make mistakes when changing screens, and here are the most common ones and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Overheating of the screen with a phenome | Damage to the matrix or plume, the appearance of yellow spots | Keep the hair dryer at a distance of 10-15 cm, do not heat one area longer than 10 seconds. |
| Use of metal tools | Scratches on the frame, closing contacts | Work only with plastic mediators and insulated tweezers |
| Incomplete battery shutdown | Short circuit, combustion of the power controller | Always disconnect the battery plume before working with the fee |
| Strong pressing of the screen during installation | Damage to the matrix or detachment of the polarization film | Press the screen evenly, without undue effort. |
| Use of poor quality glue | The screen will fall off in a few days, dust hitting | Buy glue. B-7000 origen |
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If the phone starts to drain quickly after changing the screen, check if the battery is tightly glued. The detached battery can cause overheating and increased charge consumption.
8. Alternative options: when to not cope with yourself
If you have read the instructions and realized that replacing your screen is not your option, consider the alternatives:
- 🔧 Xiaomi Service Center – official repair with a guarantee, but the price can reach 5 000-7 000 rubles (including work and original spare parts).
- 📦 Exchange program Xiaomi Trade-In – if the phone is old, you can hand it over with a broken screen and get a discount on the new model.
Should you save money on repairs? A2 Lite is your primary phone, and you plan to use it for another year or two, then changing the screen is justified. If the device is outdated (for example, does not pull modern applications), you may want to consider buying a new smartphone.
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When choosing a workshop, check if they give a warranty for a replacement screen. The minimum period is 3 months. If there is no warranty, this is a reason to be wary.