Xiaomi Mi A3 — pop-up AMOLED-Cracks, broken pixels or a broken touchscreen are typical problems after mechanical damage. Replacing a screen in a service center costs 5-12 thousand rubles, but with tools and patience, you can perform the procedure yourself.
This article includes step-by-step analysis of the photo, the choice of the original or analog display, a list of necessary tools and critical nuances that even experienced craftsmen do not mention, for example, why the sensor may disappear after a replacement or the screen will appear yellow, and how to avoid this.
If you've never taken a smartphone apart, that's fine. It's a novice-friendly manual that focuses on security and minimizes the risk of damage to the board. But remember, Xiaomi's warranty is voided if you intervene on your own.
1. Diagnosis: Is the screen really to blame?
Before replacing, make sure that the problem is in the display, not in the plume or motherboard.
- 🔍 Visual inspection: cracks, wiring, black stripes, or bleeding pixels (colored spots) are clear signs of matrix damage.
- 👆 Touchscreen check: If the screen reacts to touches partially (for example, only in the upper half), the touch layer or its plume is to blame.
- 🔋 Connection to PC: if you connect to USB The smartphone is defined as Mi. A3, but no image - the problem is in the display or its connection to the board.
- 🔊 Sound signals: if you hear vibrations or sounds (such as notifications) when booting, but the screen is black, this confirms the matrix malfunction.
⚠️ Attention: if after a fall the smartphone does not turn on at all (no vibration, does not warm, does not detect the PC), the cause may be a collapsed battery or damage to the board.
2. Display selection: original vs analog
The quality of the new screen is not only the picture, but also the life of the smartphone.
| Type of display | Price (2026) | Pluses | Cons |
|---|---|---|---|
| Original (OEM) | 8 000–12 000 ₽ | Perfect color reproduction, full compatibility, long service life | High cost, difficult to find in retail |
| Premium class analogue | 4 500–7 000 ₽ | Quality is close to the original, often with already pasted glass | It may be slightly dimmer or with a cold tint |
| Budgetary analogue | 2 500–4 000 ₽ | Low price, fast delivery | Risk of yellowness, broken pixels, poor sensitivity of touch screen |
Where to buy:
- 🛒 AliExpress: Cheapest but long wait (2-4 weeks) Look for sellers with ratings above 98% and reviews of real screens.
- 🏬 Local service centers: often sell original parts with a guarantee, but the price is higher by 20-30%.
- 🌍 Overseas sites (e.g. eBay or Amazon): fast shipping, but high fees.
Critical nuance: for the Mi A3, only a screen with the MDY10-00016 (original) or its certified counterparts is suitable. Displays from the Mi CC9e (Chinese version) are incompatible - a different plume connector!
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Before buying, ask the seller to send a photo of the screen plume connector, the original one must be labeled JDI DSI or SAMSUNG AMOLED (depending on the batch).
3. Tools: What will be needed to replace
Without the right tools, you risk damaging the board, plumes, or a new screen.
- 🔧 Plastic blades (2-3 pieces) - for careful underwearing of the body.
- 🔨 Thin screwdriver T3 and T5 — screen-mounting screw.
- 🧲 Magnetic mat or tray – so as not to lose small details.
- 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
- 🧴 Isopropyl alcohol (90%+) — glue-cleaner.
- 📱 Screen suction cup - helps to gently lift the display.
- 🔋 New bilateral scotch or glue B-7000 — screen-lock.
- 🛡️ Safety gloves and glasses — AMOLED-screen is fragile, the fragments are dangerous!
⚠️ Warning: Do not use metal blades or knives - they scratch the frame and can close contacts on the board. Also avoid cheap Chinese screwdrivers: their sting often licks, damaging the screws.
How to replace the thermo-air station?
4. Step-by-step instructions for replacing the screen
The process takes 1-2 hours. Follow the instructions strictly in order:
Step 1: Turn off and prepare
Turn off the smartphone, remove it. SIM-If the battery is swelling, don't go on.
Step 2: Heating the body
Evenly warm the hair dryer back cover and edges of the screen for 3-5 minutes. the glue will become softer, and the risk of damage to the plumes will decrease.
Step 3: Removing the back cover
Carefully apply a plastic blade to the bottom edge (near the USB-C connector). Move around the perimeter, gradually snapping the clamps. Do not force - if the lid does not lend itself, warm more.
Is the smartphone off-charging?|Whether extracted SIM-map?|Will the body be heated by a hairdryer?|Are plastic shoulder blades ready?-->
Step 4: Shutting off the battery
When you remove the lid, first of all, unplug the battery plume (it's under the black film) and use a plastic blade to gently lift the connector. Don't pull the wires!
Step 5: Screen removal
Warm up the front of the smartphone (on the screen side) for 2-3 minutes. With a suction cup, lift the display from the bottom edge, then gently tuck the shoulder blade into a circle. The screen is held on glue and clamps - take your time.
⚠️ Warning: Display plume is very fragile! Don't lift the screen above 45° — First, unplug it from the board. The connector is under metal protection (you need to unscrew 2 screws). T3).
Step 6: Install a new screen
Move all the details from the old one to the new display: speaker, sensor plume, cameras. Make sure the connectors are dust-free. Connect the plume to the board and lock the screen with double-sided tape or glue.
Step 7: Assembly
Set the back cover by snapping the perimeter clips, turn on your smartphone and check the touchscreen, the cameras, the speaker, and if something doesn't work, take it apart again and check the plumes.
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The most common mistake when replacing the screen with a Mi A3 is to damage the touchscreen plume, which is separate from the display and attached to the board with a thin connector. Always turn it off last and plug it in first!
5.Typical problems after replacement and their solution
Even with a careful replacement, problems can occur, and here are the most common ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| The screen is working, but there is no image. | Poorly connected display plume or damaged matrix | Take your smartphone apart and check your contacts. If it doesn't work, it's a broken display. |
| Touchscreen doesn't respond to touch | Sensor plume is not connected or controller is damaged | Reconnect the plume. If it doesn't work, you need to change the controller (on the board). |
| Yellow or screen blur | Cheap analog display or improper calibration | Try calibrating the screen to Settings → Display → Colors. If it doesn't work, just a replacement. |
| There are vertical stripes. | Damage to the plume or matrix during installation | Check the integrity of the plume. If it's broken, we need a replacement. |
If after the replacement the smartphone stopped turning on, check:
- 🔌 Is the battery connected (sometimes the plume leaves during assembly).
- 🔧 Are the contacts closed on the board (look at the subject of foreign objects).
- 🔥 Have you overheated the fee with a hair dryer (characteristic smell of burning).
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If the new screen works but the color rendering is different from the original, try turning on sRGB mode in the display settings.
6.The cost of repair: comparison with the service center
Replacing a screen on your own is cheaper, but it takes time and skill.
| Repair option | Cost (₽) | Time. | Guarantee |
|---|---|---|---|
| Self-Defense (Original Screen) | 8 000–12 000 | 1-2 hours | No. |
| Self-contained (premium analogue) | 4 500–7 000 | 1-2 hours | No. |
| Service centre (original) | 10 000–15 000 | 1-3 days | 6–12 months |
| Service centre (analogue) | 5 000–9 000 | 1-3 days | 3–6 months |
⚠️ Attention: service centers often offer "budget repairs" with a cheap version installed, passing it off as the original!
The savings of self-replacement are 20-40%, but the risks are high: you can damage the board, plumes or a new screen, if you are not confident in your abilities, you should trust the repair to professionals.
7. Alternative methods: when replacement is not necessary
A broken screen does not always require a full replacement, and in some cases, it is possible to do with the following:
- 🔧 Glass replacement (if the matrix is intact): if only the outer glass is cracked and the image and sensor are working, you can paste a new glass. Cost: 1,500-3,000 ₽.
- 🖥️ Connect to an external monitor: if the screen is not working, but the smartphone is turned on, connect it to the screen USB-C TV or monitor (adapter required) USB-C to HDMI).
- 📱 Using a smartphone without a screen: if the touchscreen does not respond, but the image is, connect the wireless mouse via Bluetooth and control it.
- 🔄 Exchange program Trade-In: some stores (for example, Svyaznoy or M. Video) take broken smartphones as a credit when buying a new one.
If the cracks are small and do not interfere with use, you can temporarily seal the screen with a transparent film (for example, Orafol) - this will prevent dust and fragments from entering.