How to disassemble Xiaomi Redmi 6A: detailed instructions with photos and nuances

Xiaomi Redmi 6A is one of the brand’s most popular budget smartphones, released in 2018. Despite its simplicity, its disassembly requires care: a fragile plastic body, thin plumes and glues can cause problems for a beginner. This article will help avoid the typical mistakes when self-repairing – from replacing the battery to diagnosing the motherboard.

We're going to go into detail about the dismantling process, taking into account the specifics of the model: where the latches of the case are located, how to properly disconnect the plumes without damage, and what to do if the smartphone does not turn on after assembly, and we'll pay special attention to the tools, without which it is almost impossible to disassemble the Redmi 6A.

If you’ve never done an electronics repair, start by reading the warnings in each section to help keep your device running and avoid costly errors.

Preparation for disassembly: tools and security measures

Before you start disassembling, make sure you have everything you need. The Redmi 6A does not require professional equipment, but without specialized tools, you risk damaging the body or internal components.

Here is the minimum set you will need:

• 🔧 Plastic blade (or mediator) - to separate the body without scratches.
• ⚙️ Screwdriver. T3 and T5 — motherboard-mounting screw.
• 🧲 Suction - will help to raise the screen after heating.
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature not higher than 60)°C!).
• 📦 Container for screws - so as not to lose small details.

Important: Don't use metal tools to separate the body, they leave scratches and can damage the antenna tracks, and if you don't have a suction cup, you can replace it with wide tape, but it's less reliable.

⚠️ Warning: If the smartphone has been in water or has been hit hard, disassembly may result in a short circuit.

Step 1: Remove the back cover – where the latches are located

The Redmi 6A case is mounted on latches and double-sided tape, and the challenge is not to break the plastic locks when you part. Start by heating the back cover with a hair dryer (hold it 10-15 cm away, it's 60°C) and this will soften the glue and make it easier.

Procedure:

1. Heat the edges of the body around the perimeter for 2-3 minutes.
2. Insert a plastic spatula into the gap between the back cover and the frame (start with the lower right corner where the SIM card is located).
3. Carefully lead the shoulder blade along the body, alternately snapping the fixtures.
4. When all the latches are free, remove the lid. If it doesn't respond, warm up again.

The Redmi 6A has more latches on the top (near the camera) and the sides, and the lower part of the body is only held on glue, so you can do a little bit more effort, but without jerking.

⚠️ Warning: If the lid cracks when removed, don't try to glue it with superglue, it will damage the plastic. Use a special glue for electronics (for example, use a special glue for electronics, B-7000).

Step 2: Shutting down the battery – why it’s critical

Once the back cover is removed, the first thing you need to do is turn off the battery, which prevents short circuits from accidentally touching the contacts with a screwdriver, and the Redmi 6A has a battery glued, but the power plume is readily available.

Instructions:

1. Find the battery connector – it is located at the bottom of the motherboard (white connector with an orange tongue).
2. Carefully tuck the tongue with a plastic spatula and pull out the plume.
3. Check with a multimeter that there is no voltage on the contacts of the battery (optional, but recommended).

If the tongue of the connector breaks (a common problem in careless disassembly), the battery can be turned off by putting a thin plastic card on the plume itself, but in this case the connector will have to be replaced.

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If the battery is swelling, don't try to puncture it! It can cause fire. It's better to dispose of the battery immediately at a special reception point.

Step 3: Dismantling the motherboard and plumes

Redmi Motherboard 6A pinned T3 and one screw T5 (tray-tray SIM-Before you unscrew them, take a picture of the location - this will help with the reverse assembly.

Procedure for disconnecting the plumes:

• 📱 The screen plume is the most fragile, located at the top of the board!
• 🔊 The speaker plume is on the right of the battery. It can stick to the board.
• 📡 Antenna cables - three thin wires under a metal cover (mounted on 2 screws).

Once all the plumes are turned off, you can retrieve the board. Be careful with the flexible contacts, they break easily. If the plume breaks, it can be replaced, but it requires soldering.

Step 4: Replacing the battery – selecting a new battery and installing nuances

The Redmi 6A battery has a capacity of 3000 mAh and is mounted on double-sided tape. To replace the original MB38 battery or analogues from proven brands (for example, Baseus, Remax) Cost from 500 to 1200 rubles.

How to remove the old battery:

1. Tap the edge of the battery with a plastic spatula.
2. Carefully pull upwards, putting glue around the perimeter.
3. If the battery fails, warm it up with a hair dryer (maximum 50°C).

When installing a new battery:

• 🔋 Use a new double-sided Scotch (comes complete with battery).
• 🔌 Connect the power plume after fixing the battery in place.
• ⚡ Before first charging, discharge the phone to 0% and charge to 100% (calibration).

⚠️ Warning: If the phone doesn't turn on after the battery is replaced, check: Is the power plume connected correctly (sometimes it doesn't reach the connector) Is there any damage to the motherboard (blackened cells, bloated capacitors).

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Never use superglue to fix the battery – it can damage lithium polymer cells and cause a fire.

Step 5: Screen Disassembly – When It’s Necessary and Risks

The screen Redmi 6A consists of three parts: touch glass, display module and metal frame. In most cases, if damaged, it is enough to replace only the glass (cost - from 800 rubles), but if the matrix is broken, you will need a complete replacement module (from 2500 rubles).

How to take the screen off:

1. Warm up the display with a hair dryer (60°C) around the perimeter for 3-5 minutes.
2. Put a suction cup or a wide scotch on the glass.
3. Carefully separate the glass from the frame with a plastic blade. If the display is not damaged, do not separate it from the matrix!

Important nuances:

• 🔧 If the screen does not respond to touch, but the image is there – the problem is in the touch plume.
• 📵 If there is an image but no backlight, it is defective. LED-lighting or its driver on the board.
• 🔄 After the screen is replaced, the sensor may need to be calibrated in the engineering menu (#6484##).

On the Redmi 6A, the screen plume often fades when the image is dropped – if the image flashes or vertical stripes appear, first check the reliability of its connection.

Common Mistakes in Disassembly and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when repairing Redmi 6A. Here are the most common of them and ways to prevent them:

Another common problem is the loss of screws. In the Redmi 6A, they are of different lengths: if you confuse the board in places, the board can warp. To avoid this, spread the screws on the containers with signatures (for example, "camera", "board", "antenna").

FAQ: Answers to Frequent Questions about Redmi 6A Disassembly