How to open the case of the smartphone Xiaomi Redmi: safe disassembly without damage

Disassembling the Xiaomi Redmi smartphone is a challenge that owners face when replacing the battery, repairing the screen or cleaning up dust. However, opening the case incorrectly can damage the plumes, cracks in the back, or even failure of the device. In this article, we will discuss in detail how to safely open the case of different Redmi models (from Redmi Note 10 to Redmi 12), what tools will be required, and what to look for to avoid typical errors.

It’s important to understand that Xiaomi’s case design has changed over the years: if the old models (Redmi 4/5) were relatively easy to remove, the new ones (Redmi Note 11/12) use glue and latches that require accuracy. We’ll look at the universal methods and nuances for specific series. If you’ve never taken down a smartphone, start by learning your model’s mounting scheme (you can find them on sites like iFixit).

Preparation for disassembly: tools and security measures

Before you start opening the case, make sure you have everything you need. The absence of even one tool can lead to irreversible damage - for example, trying to fit the lid with a knife instead of a mediator often ends in scratches or chips.

Here is the minimum set you will need:

• 🔧 Plastic mediator (or guitar mediator) – for separation of the body without scratches.
• 🔨 Screwdriver. T3/T4/T5 (depending on the model) - for screws under the back cover.
• 🧲 Suction (optional) - helps to lift the cover on models with glue fastening.
• 🔥 Dryer or thermoair station - for softening the glue (relevant for Redmi Note) 10/11/12).
• 📦 Container for screws - so as not to lose small details.

Also, prepare the workspace: it should be well lit, without dust and static electricity. Put soft fabric (such as a microfiber) on the table so as not to scratch the screen. If you work with a glue-based model (such as a Redmi 9 or later), warm the body with a hairdryer around the edges for 1-2 minutes, this will make it easier to separate the cover.

⚠️ Warning: Do not use metal tools to lid the cover! even a slight pressure can damage antenna lines or plumes under the back panel.

Circuit mounting schemes: what are the differences between Redmi models

The design of the Xiaomi Redmi case varies depending on the year of release and series. For example, in the Redmi Note 8 and older, a combination of glue and latches is used, whereas in the Redmi 5/6 the cover was kept only on the latches.

If your model is not listed in the table, look for it on iFixit or YouTube (look for disassemblies marked "teardown"). Pay attention to the location of the antenna lines - they are easily damaged if you sloppy lid.

In the Redmi Note 10 and later, the fingerprint scanner plume is glued to a middle frame - it can't be pulled by force! If you're disassembling a battery replacement device, first disconnect the battery (it's usually glued to double-sided scotch).

Step-by-step: how to open the case Xiaomi Redmi

Now, let's get to the point. Below is a general-purpose manual that works for most models. If your smartphone is a Note series (like the Redmi Note 11), make sure to warm up the case with a hair dryer before you start!

Turn off your smartphone and remove it. SIM-map

Warm up the edges of the body with a hairdryer (for models for glue)

Prepare a plastic transmitter and screwdriver

Place the device on a soft surface-->

1. Step 1: Turn off your smartphone and remove it SIM-This will prevent short circuits and damage to the contacts. If the battery is swelling, don't turn on the device, start disassembling immediately.
2. Step 2: Warm up the edges of the case. For models with adhesive attachment (Redmi Note 10/11/12, Redmi 9), warm up the back cover with a hairdryer around the perimeter for 1-2 minutes. Temperature should be 50-60 °C - do not overheat so as not to damage the plastic!
3. Step 3: Put the mediator in the slot. Start at the bottom edge (near the USB-C connector) or from the place under the camera. Carefully insert the mediator and slowly lead along the case, separating the latches. If the lid does not respond, warm up again.
4. Step 4: Unscrew the screws. Once the lid is removed, you will see the screws (usually the T3 or T4). Unscrew them and fold them into a container - they are small and easily lost. In some models, the screws are hidden under stickers (for example, in the Redmi 8A).
5. Step 5: Disconnect the plumes. Before you take off the middle frame, disconnect the battery plumes, the camera, and the fingerprint scanner. They're attached to the latches -- put a plastic blade on them.

⚠️ Note: Redmi Note 10 Pro and Redmi K50 The plume of the display runs under the middle bezel. If you're not planning on replacing the screen, don't remove the frame completely -- just lift it on one side.

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If the lid doesn't lend itself, don't force it! Try to warm the body up again or use a suction cup to start the suction.

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling Xiaomi Redmi, here are the most common problems and ways to prevent them:

• 🔧 Battery plume damage: Redmi Note 11 and later have the plume glued to the body, and if you pull it by force, you can tear the contacts off. Solution: gently put the plume in a plastic blade and heat up the hairdryer attachment.
• 📱 Cracks on the back cover. Plastic covers (Redmi) 9A, Redmi 8A) Solution: use a mediator and warm up the glue, not press the center of the lid.
• 🔌 Short circuit. If you don't turn off the battery before work, you can burn the motherboard. Solution: first, unplug the battery plume.
• 🔍 Loss of screws. The screws in Redmi are small and easily lost.Solution: use a magnetic mat or a container with cells.

Another common mistake is that the antenna lines are damaged, and they're located on the edges of the body, and they look like thin metal strips, and if you scratch them, you'll get a degraded 4G/Wi-Fi signal, and to avoid that, don't put the mediator in more than 2-3 mm.

Features of disassembling specific models

Despite the general principles, each model Xiaomi Redmi has its own nuances.

Redmi Note 10/11/12

These models have the strongest adhesive attachment of the entire lineup.

• Be sure to warm up the body with a hairdryer around the perimeter.
• Start at the bottom edge (near USB-C).
• The fingerprint scanner plume is glued - don't pull it by force!

Redmi 9/9A/9C

The lid here is held on adhesive, but it's less durable than the Note series, and the main difficulty is the brittle plastic. Use a mediator with rounded edges so you don't scratch the body.

Redmi 8/8A

In these models, the lid is only attached to the latches, but the screws are hidden under rubber plugs. Carefully tweez the plugs so that they do not break.

Redmi 7/7A

The most fragile back cover of any Redmi. Even a little pressure can lead to cracks. Take it apart very carefully, starting at the corner next to the power button.

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In models Redmi Note 10 and newer battery plume glued to the body – it needs to warm up the dryer before disconnection, otherwise you risk to tear off the contacts.

What to do after successful opening of the building

When the case is open, don't rush to start repairing.

1. Take a picture of the plumes and screws, which will help you put the device back together, especially for models with a lot of plumes (like the Redmi Note 11 Pro).
2. Check the integrity of the sealing rubber bands. If you're disassembling your smartphone because of moisture, check the rubber pads around the buttons and connectors, and replace them if necessary.
3. Clean your insides of dust. Use a soft brush or a compressed air balloon. Don't blow with your mouth -- saliva can get on the board!

If you have replaced a battery or other component, check its performance before assembly. Connect the smartphone to charge (without putting the lid on) and make sure it turns on. If the device does not work after assembly, check:

• Are all plumes connected (especially batteries and displays)?
• Is the middle frame skewed (this can block the buttons).
• Are there any foreign objects (screws, pieces of plastic) left inside?

How to assemble the smartphone back: tips

Building is often more difficult than disassembling, and here are the key points to consider:

1. Footprints. Make sure all plumes (batteries, cameras, displays) are tightly inserted into the connectors. In the Redmi Note 10 and later, the fingerprint scanner plume should lie flat, without inflections.
2. Rotors. Rotate them in the same order that you screwed them out. In some models, screws of different lengths -- if you confuse them, you can damage the board.
3. Cover. Press it evenly around the perimeter, starting at the latch attachment points. If the lid doesn't sit tight, warm it up with a hair dryer, the glue will become more elastic.
4. Check. After you've assembled, turn on your smartphone and check: Is the touchscreen working, is the battery charging, is the camera and the fingerprint scanner functioning.

⚠️ Attention: If the smartphone does not turn on after assembly, but the indicator is on when connecting to charging, the problem may be in the battery plume or power button.

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If the lid is wobbly after assembly, apply a thin layer of B-7000 glue around its edges. This will eliminate the backlash, but be sure to let the glue dry before using your smartphone.

FAQ: Frequent questions about Xiaomi Redmi disassembly