How to disassemble Xiaomi Redmi 6A: remove the back cover without breakage

Xiaomi Redmi 6A is one of the brand’s most popular budget phones, released in 2018. Despite its simplicity of design, its disassembly requires caution: improper removal of the lid can damage the plumes, buttons or even the battery.

Many users are faced with having to disassemble the Redmi 6A to replace the battery, clean the dust or repair the speaker, but unlike flagship models, where the lid is often attached to latches, it uses a combined locking system: glue + plastic clips, which complicates the process, but with the right approach, the task is possible even in the home.

Before you start, consider your own strength: if you've never taken a smartphone apart, you'd better go to a service center. The cost of a mistake is broken latches, broken plumes, or broken buttons. In this article, we'll talk about how to minimize the risks and what to do if something goes wrong.

Preparation: tools and modalities

To disassemble the Xiaomi Redmi 6A, you will need:

• 🔧 Plastic blade (or mediator) - to separate the cover without scratches.
• 🔨 Thin screwdriver (cross, size) PH00) — screw-twisting.
• 🧲 Magnetic mat or container – to avoid losing small details.
• 🔥 Hair dryer or thermo-air station - for softening the glue (optional).
• 📸 Smartphone for shooting – fix each step, so as not to forget the sequence of the build.

It is important to work in a well-lit place without drafts. Dust or a sudden gust of wind can contaminate the internal components. If you use a hair dryer, adjust it to a temperature no higher than 60 ° C, overheating will damage the battery or screen. Also prepare alcohol wipes to clean the contacts and tape for marking the plumes.

A prerequisite: before disassembling, completely discharge the battery to 0%, this will reduce the risk of short circuit in case of accidental contact with metal tools. If the battery is swollen, do not disassemble the phone yourself!

⚠️ Warning: Do not use metal blades or knives - they leave scratches on plastic and can close contacts on the board.Plastic tools are inexpensive, but will preserve the appearance of the device.

Step 1: Turn off and dismantle the tray SIM-map

Before disassembling the Redmi 6A, be sure to turn off the device. To do this, press the power button and select Turn off. Wait for the screen to turn off completely, it will take up to 10 seconds.

Next, remove the tray for SIM-It's a paper clip or a special key, on a Redmi model. 6A The tray is on the left end (if you look at the screen), insert the paperclip into the hole before you click, and carefully pull the tray out. Don't put too much effort -- if the tray doesn't respond, check if the tongue of the retainer is bent.

• 📱 Make sure there are no microcracks on the tray - they can lead to poor contact SIM-map.
• 🔄 If the tray is deformed, replace it before assembly (the cost of a new part is about 100-150 ruble).

Once the tray is removed, inspect it for corrosion or dirt. If necessary, wipe the contacts with an alcohol wipe. Do not use abrasive materials - they will damage the gilded coating.

💡

If the tray is jammed, drop 1-2 drops of WD-40 into the hole and wait 5 minutes.

Step 2: Heating and separation of the back cover

The Redmi 6A lid is attached to glue and plastic latches, and to remove it, you need to soften the glue.

1. Put the smartphone down on a flat surface.
2. Heat the back cover with a hairdryer for 2-3 minutes, evenly leading a jet of air around the perimeter.
3. Don’t direct hot air to the camera or speaker – this can melt plastic.

Once heated, take a plastic blade and gently insert it into the gap between the lid and the body. Start at the lower right corner (near the charging connector) - there is a smaller latch and the risk of damage is minimal.

Once the blade enters 3-5 mm, slowly move it along the end, separating the lid. You will hear the characteristic clicks - this is the adhesive joints break. Take your time: if the lid does not respond, heat it again.

⚠️ Warning: If the lid starts to "walk" tightly, do not pull it by force - it may remain unbroken glue areas.

Tray SIM-maps extracted|The lid is heated to 50-60°C|Scapula inserted into the lower right corner|No sudden movements during separation-->

Step 3: Turn off the plumes and battery

After removing the cover, you will see:

• 🔋 Battery (black rectangle with inscription) BYD or ATL).
• 📶 Antenna contacts (metal springs around the perimeter).
• 🔌 Trains (thin tapes connecting the board to buttons and speaker).

First thing you do is turn off the battery.

1. Find the battery connector on the board (usually indicated in red or orange).
2. Carefully dent the plume with a plastic spatula and disconnect it.

If the plume is "stuck", do not pull it - this is how you can tear the contacts. Instead, heat the connector with a hairdryer for 10-15 seconds and try again. After turning off the battery, check with a multimeter that there is no voltage on the board (optionally, but recommended).

Important: If you don't plan to replace the battery, don't remove it completely - just turn off the plume. Completely dismantling the battery requires special glue to fix the new one, otherwise it will "walk" inside the case.

Step 4: Dismantling the motherboard (optional)

If you need to get to the speaker, the microphone, or the charging connector, you need to remove the motherboard.

1. Unscrew all the screws on the board (12 of them, of different lengths) and place them on the magnetic mat in order of twisting.
2. Disconnect the remaining plumes: display, cameras, fingerprint sensor (if any).
3. Carefully raise the cost for edges, starting at the top.

Under the charge you'll find:

• 🔊 Dynamic (round or oval, glued to the body).
• 🎤 Microphone (small black square next to the charging connector).
• 🔌 USB-Type C connector (can be soldered or on a plume).

Warning: On the Redmi board 6A There are some fragile elements, like a connector for a screen plume, and if you accidentally break it, it's going to cost you a lot of money to repair it. 1500-2000 ruble (replacement of connector) + ration).

💡

If you're not sure about your skills, limit yourself to replacing the battery or cleaning up the dust. Dismounting the board is the riskiest part of disassembly!

Common Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Redmi 6A. Here are the most common:

• 🔥 Overheating with a hairdryer → Solution: Keep the dryer 10 cm away and use the minimum temperature.
• 🔧 Loss of screws → Solution: Use a magnetic mat or a marker to mark the screws.
• 📱 Damage to the display plume → Solution: Don't push the plume with metal tools.
• 🔋 Short circuit. → Solution: Always turn off the battery before working with the board.

Another common problem is the wrong assembly, for example, if you forget to plug in the power button plume, the phone will turn on but not respond to pressing, so to avoid this, take a picture of each step of disassembly and check the photo as you build it.

If the phone does not turn on after assembly:

1. Check if the battery is connected.
2. Make sure all the plumes sit tightly in the connectors.
3. Try charging the device – sometimes a discharged battery does not show signs of life.

💡

If you've had a "glut" after you've assembled it (a self-reboot, a broken touchscreen), chances are you forgot to fix the screen plume. Take your phone apart and check the contacts.

When do you call the service?

Not all breakdowns can be repaired by yourself.

• 💥 Battery swollen - it is dangerous to health (risk of fire).
• 🔧 Broken latches of the lid - without them the body will not be sealed.
• 📱 Damaged motherboard (blackened elements, smell of burning).
• 🔌 The charging connector does not work - a soldering iron and experience are needed to replace it.

Cost of repair in the service:

If you decide to repair the Redmi 6A yourself, but something went wrong, don’t try to “draw” the device – this will only aggravate the problem. Xiaomi service centers often offer discounts on repairs upon presentation of a purchase check (even if the warranty is over).

FAQ: Frequent questions about the Redmi 6A disassembly