Xiaomi A2 Lite (also known as Redmi 6 Pro in some regions) remains a popular choice among users who value balance of price and functionality. However, over time, even reliable equipment can require repairs from replacing the charging connector to cleaning the cooling system. Disassembling the device is the first and most critical stage of any repair, where errors can damage plumes, connectors or even the motherboard.
In this article, you will find detailed instructions with photos of key stages, a list of necessary tools and unique tips to help avoid typical problems. We will also analyze which parts of the Xiaomi A2 Lite are most vulnerable to disassembly, and what to do if something goes wrong. If you have never taken apart a smartphone before, do not worry: with the right approach, even a beginner will cope with the task.
⚠️ Attention: Disassembly of the smartphone Xiaomi A2 Lite voids the manufacturer's warranty. If the device is still warranty service, contact the service center. Also remember that the battery in this device is soldered to the motherboard - it requires soldering work and experience to disconnect it.
Preparation for disassembly: tools and security measures
Before you start disassembling, make sure you have everything you need, and the wrong tools are the main cause of damage to the body or internal components, and here is the minimum kit you'll need:
- 🔧 Plastic mediators (2-3 - for gently putting the lid on. Metal tools can leave scratches.
- ⚙️ Screwdriver cross (PH00 or PH0) — The wrong size screwdriver will lead to the licking of the screws.
- 🔥 Hair dryer or thermal air station - to soften the glue under the battery (if you plan to replace it).
- 🧲 Magnetic mat or container - so as not to lose small screws. A2 Lite 12 of them, and they are all different sizes!
- 📸 Smartphone for photography – fix the location of plumes and connectors before disconnecting.
Also, prepare your workspace: it should be well lit, without dust or static electricity, a table with an antistatic mat is perfect, and if you don't have one, at least ground yourself by touching a metal object (such as a heating battery).
⚠️ Warning: Don't disassemble your smartphone on a carpet or couch! Synthetic fabrics store static electricity that can damage the chips. Also avoid working in wet spaces - condensation on the board will lead to a short circuit.
Step 1: Removing the back cover
The back cover of the Xiaomi A2 Lite is mounted on latches and glue. The main difficulty is not to break the plastic clamps, which are as many as 16 pieces (8 on each side). Start by heating the edge of the cover with a hairdryer (temperature ~60 ° C) for 1-2 minutes, this will soften the glue and make the process safer.
Then proceed with the algorithm:
- Insert a plastic mediator into the gap between the lid and the case at the USB-C connector (the bottom of the smartphone).
- Carefully drive the mediator along the edge, gradually increasing the gap. Don't try to rip the lid off abruptly, so you break the latches!
- When the cover starts to move, move the mediator to the top (at the camera) and repeat the process.
- After all the latches are free, remove the lid, holding it to the upper edge.
Under the lid, you'll see the battery, the motherboard, and some plumes. Don't pull the plumes, they're fragile and they can easily come off the connectors. If the lid doesn't lend itself, warm it up again with a hairdryer and try again.
☑️ Preparation for lid removal
Step 2: Battery disconnection
In the Xiaomi A2 Lite, the battery is soldered to the motherboard, so completely turning it off requires soldering work. However, even if you are not planning to replace the battery, be sure to disconnect the power connector from the board to avoid short circuit. It is under a black protective film to the right of the battery.
To get to the connector:
- Remove the black insulating film (it is attached to a weak glue, put it under the mediator).
- Carefully lift the orange battery connector with a plastic spatula.
- Lock the connector in the off position (for example, a piece of tape) so that it does not accidentally connect back.
If you do decide to replace the battery, be prepared for soldering, which requires a soldering station with a temperature of 300-350 ° C and experience with microelectronics, 80% of the cases of unsuccessful battery replacement in the A2 Lite is caused by overheating of the board during soldering, which leads to failure of the power controller.
What happens if you don't turn off the battery?
Step 3: Removing the motherboard
The Xiaomi A2 Lite motherboard is mounted on 12 different sized screws, so that you don't confuse them when you build them, we recommend you to arrange the screws in order on the magnetic mat or sign their location.
- 📱 Display plume (top of board, under metal screen).
- 🔊 Dynamics and microphone plume (lower left).
- 📶 Antenna cables (right side, under black insulation).
- 🔋 Charging connector (lower edge of the board).
Once the plumes are unplugged, unscrew all the screws (use the PH00 screwdriver). Note that the two screws under the battery are longer than the others - don't mix them up when you build them! Now you can carefully extract the board by pulling it over the top edge. If it doesn't respond, check if all the plumes are off.
| Type of screw | Number of | Location. | Features |
|---|---|---|---|
| Short (2.5 mm) | 8 pcs. | Perimeter of the charge | Fixing the charge to the hull |
| Long (4 mm) | 2 pcs. | Under the battery. | They're fixing the fee to the middle frame. |
| Medium (3 mm) | 2 pcs. | USB-C connector. | Lock the charging connector. |
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Before removing the board, take a photo of it from all sides, which will help to connect the plumes correctly when reassembling, especially if the repair took several days.
Step 4: Disassemble the front panel and display
If you need to replace the display, touchscreen or front camera, you have to disassemble the front of the smartphone. In the Xiaomi A2 Lite, the screen is glued to the frame, so you will need a thermal air station or a hair dryer with a temperature of 70-80 ° C. The main difficulty is not to damage the flexible plume of the display that passes under the battery.
Procedure:
- Warm up the edges of the screen with a hairdryer for 3-5 minutes, evenly driving around the perimeter.
- Insert a plastic mediator in the gap between the screen and the frame at the Home button (if any) or at the bottom edge.
- Carefully drive the mediator along the edge, separating the glue, and if the screen doesn't respond, warm it up again.
- When the glue softens, lift the screen up, but don’t tear it off completely – first unplug the plume!
The display plume is attached to the board with a ZIF connector (with a lifting latch). Lift the latch with a plastic blade, then carefully pull the plume out. If you plan to reuse the old screen, stick a protective film on it so you don't scratch.
⚠️ Attention: B A2 The Lite touchscreen and the display are a single module. If you replace only the glass without the display, the sensor will stop working.
Common Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when disassembling the Xiaomi A2 Lite, and here are the most common problems and ways to prevent them:
- 🔧 Sliced screws - use a quality screwdriver PH00 And don't put too much force on it, and if the screw is already slime, try removing it with rubber band or superglue.
- 🔥 Overheating of the board when soldering - do not keep the soldering iron in one place for longer than 3 seconds. Use heat-dissipating tweezers.
- 📱 Damage to the display plume - don't bend it or pull the wires. The plume is fragile and stands ~30% of the price of the new screen.
- 🔋 Short circuit after assembly - check if all screws are in place. One extra screw under the board can close contacts.
If the phone doesn't turn on after assembly, don't panic.
- Is the battery connected (even if it is soldered, the connector could move away).
- Whether all the plumes are connected correctly (especially the display and power buttons).
- Are there any foreign screws or garbage under the charge?
In 60 percent of cases, the problem is solved by re-disassembling and checking the connectors, and if the smartphone turns on but does not respond to touch, the touchscreen plume is likely damaged.
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The most common cause of failure after disassembling the A2 Lite is a misconnected display plume. Always check the ZIF latch before assembly!
When to contact the service center
Not all breakdowns can be repaired on their own, but here are some cases where you can trust the professionals:
- 🔧 Problems with the motherboard – if the smartphone does not turn on, overheats or “gluts” after a fall, you will need a diagnosis on special equipment.
- 📶 Failure of the antenna or communication module – replacing the antenna cables requires accurate soldering, and errors will result in the loss of the network.
- 🔋 Bloated battery – replacing it at home is dangerous (fire risk) and uses special tools to safely recover it.
- 💧 Liquid intake - even if the smartphone is turned on, corrosion on the board may show up later.
The cost of repair in the service depends on the breakdown:
| Type of repair | Cost (rupe) | Date(s) |
|---|---|---|
| Replacement of the display (original) | 4 500 – 6 000 | 1–2 |
| Battery replacement | 1 800 – 2 500 | 1 |
| Repair of the charging connector | 1 500 – 3 000 | 1–3 |
| Diagnostics of fees | 500 – 1 000 | 1 |
If you are in doubt, it is better to pay for repairs than to risk breaking the device completely. For example, replacing the chip on the board at home costs 3-5 times more than in the service (because of the risk of damaging neighboring elements).