Disassembly of the smartphone Redmi from Xiaomi: a step-by-step guide with photos and tips

Disassembling the Redmi smartphone is a challenge that owners face when replacing a battery, repairing a screen or cleaning connectors. Although most Xiaomi models are standardized, each device has nuances ranging from the type of rear lid attachment to the location of the plumes. This guide will help avoid typical errors such as damage to flexible cables or screw failure, and will be suitable for most lines, from the budget Redmi A to the flagship Redmi Note Pro.

It's important to understand that self-disassembly voids warranty (if it's still valid) and requires care. The manufacturer doesn't recommend interfering with the interior design, but with the right approach, the risks are minimized. We'll look at the generic steps, tools, and give you tips on how to work with specific models.

If you've never taken a smartphone apart before, practicing on a broken device or watching video disassembly of your model will help you avoid unpleasant surprises. For example, Redmi Note 12 uses glue to lock the battery, and Redmi 10C uses latches that are easy to break when you carelessly move.

Preparation for disassembly: tools and security measures

Before you start, you need to assemble the tools you need, and without them, you'll be in pain, and you'll have a lot more risk of damage to your device.

• 🔧 Set of screwdrivers (cross-haul) PH00, flat 1.5 mm, five-pointed Y00 for some).
• 📱 Plastic mediators or shoulder blades (to separate the cover and plumes).
• 🔥 Dryer or thermo-air station (to soften the adhesive on the battery or lid).
• 🧲 Magnetic mat or container (to avoid losing screws).
• 🔋 Isopropyl alcohol 90%+ (Cleaning contacts and removing glue residues).

Also, prepare your workspace: it should be well lit, without dust or static electricity. Use an antistatic bracelet if you work with boards - the discharge can damage the chips. Don't disassemble your smartphone on a carpet or soft surface: screws and small parts are easy to lose.

⚠️ Warning: If your smartphone battery is swelling, don't try to disassemble it yourself! Bloated batteries are prone to spontaneous combustion.

Before disassembling completely turn off the device and remove SIM-If the battery is not removable, wait until the charge drops below 25%, which will reduce the risk of short circuits if the contacts are accidentally damaged.

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Photograph the location of the screws and plumes at each stage - this will simplify the reverse assembly and help to avoid "extra" details.

Removal of the back cover: glue vs. latches

Redmi's rear design varies by model and year. Budget series (like the Redmi 9A or Redmi A1) often use plastic latches, and more expensive ones (like the Redmi Note 11 Pro+) use glue + latches. Let's consider both.

For latch covers:

1. Insert a plastic mediator into the gap between the lid and the case (usually starting at the bottom edge, next to the USB-C connector).
2. Carefully drive the mediator along the perimeter, alternately snapping the locks. Don't force it, if the lid doesn't lend itself, there are hidden latches or glue.
3. After removal, check the integrity of the sealing rubber (if any) - its damage will lead to dust and moisture.

For glue covers:

• Heat the edge of the cover with a hair dryer (temperature 60–80°C, no higher!) for 1-2 minutes.
• While the glue is softened, put the lid on the mediator and slowly separate it, repeating heating if necessary.
• If the lid is glued too tightly (as in the Redmi K50), use a suction cup for the initial tear.

⚠️ Warning: Don't overheat your smartphone! Temperatures above 90°C can damage the battery or screen. Keep the hair dryer at a distance of 5-10 cm and constantly move it.

After removing the lid, inspect the insides for dust or corrosion, and if you see traces of oxidation on the contacts (green coating), clean them with a cotton swab dipped in isopropyl alcohol.

Battery shutdown: why it's critical

Before touching any internal components, be sure to turn off the battery. Even a smartphone that is turned off can get a short circuit if you accidentally close the contacts of the battery with a metal tool, at best, it will lead to a reset, at worst, to a fire.

The battery in Redmi is usually attached to:

• Glue (in most modern models).
• Screws + glue (in some Note series).
• A sleek sleeve (rarely in older models).

To safely disconnect the battery:

1. Find the battery plume – it is usually located under a protective black film or metal plate.
2. Carefully put a plastic spatula on the connector and unplug it. Don't pull the wires!
3. If the battery is glued, heat it with a hair dryer (as when you remove the lid) and apply a mediator. Don't use metal tools, they can puncture the battery.

In Redmi Note 10 Pro and later, the battery is often hidden under the second layer of glue. If the battery does not leave after heating, check if there are additional locks.

Withdrawal of motherboard and plumes

Once the battery is turned off, you can start disassembling the main components, and at this point, the key is not to damage the flexible plumes that connect the display, cameras and buttons to the motherboard, which are fragile and often break when handled carelessly.

Procedure:

1. Unscrew all the screws that hold the metal plate over the motherboard. The screws can vary in length — remember where it was.
2. Take the plate off carefully. If it's glued, put it in the corners.
3. Disconnect all the plumes, starting with the widest one (usually a display cable), and then lift the black latch of the connector up, and then pull the plume out.
4. If the board is not taken out, check if there are hidden screws under the stickers or under the battery.

In NFC models (such as the Redmi Note 12 Pro+), the antenna is often integrated into the back cover or battery. When disassembling, don’t pull the antenna wires – they are thin and easily detachable from the board.

⚠️ Attention: At Redmi K60 And then you've got new screws that have different threads, and if you mix them up when you're building them, you can damage the board seats.

If you need to get to the charging connector or speaker, the board can not be removed completely - just disconnect the interfering plumes and put it aside on an antistatic surface.

Disassembly of the screen and replacement of the display

Replacing the screen is one of the most difficult things Redmi does when disassembling, and most models have a bezel-glued display that requires patience and skill to separate, and if you've never done that, you'd better go to the service -- a mistake could cost a new module.

Step-by-step:

• 🔥 Heat the screen around the perimeter with a hairdryer (temperature 70–80)°C) for 3-5 minutes. This will soften the glue.
• 📱 Insert a plastic mediator into the gap between the screen and the frame. Start at the bottom edge (there is usually less glue).
• 🔧 Carefully drive the mediator along the edge, gradually separating the screen. If the glue hardens, repeat the heating.
• ⚠️ Don’t push the screen too deep – the plumes of the display and sensor pass under it!

After screen separation:

1. Disconnect the display and touchscreen plumes (they can be glued together - do not pull by force!).
2. Check the integrity of the flexible cables. If they're broken, they'll have to be replaced.
3. Clean the frame from the glue residues with isopropyl alcohol.

When installing a new screen, use 3M double-sided tape or a special glue for displays (such as the B-7000).

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In the Redmi Note 10 and later, the screen and touchscreen often come in the same module. If you replace only the glass, the sensor may not work correctly - you need a complete replacement module.

Reverse Assembly: How to Avoid Mistakes

It seems easier to build a smartphone after dismantling, but this is where most of the mistakes are, and the main rule is to follow the reverse order and check each step.

• 🔌 Unconnected plumes (especially volume or power buttons).
• 🔩 Skewered screws (they must enter without effort!).
• 📶 Incorrectly installed NFC-antenna (will result in a non-working contactless payment).
• 🔋 Poorly glued battery (may depart when falling).

Before the final assembly:

1. Check that all the plumes are tightly inserted into the connectors (they should click).
2. Make sure there are no “extra” screws or debris under the charge.
3. Close the lid and slightly press the perimeter - it should sit flat, without cracks.
4. Turn on your smartphone and test all the functions: sensor, cameras, speakers, charging.

If something doesn’t work after assembly (for example, the power button doesn’t react), disassemble the device again and check:

• The integrity of the button plume.
• Correct battery connection (sometimes contacts are oxidized).
• No circuits on the board (look at it for blackened elements).

Frequent problems and how to avoid them

Even with careful disassembly, you can face unexpected difficulties, and here are the most common ones and ways to prevent them:

If you have disassembled your smartphone due to moisture, after assembly, be sure to check the moisture indicators (small white circles with red marks). If they turn red, the device should be dried in rice or silica gel at least 24 hours before turning on.

Redmi Note 12 and later use hydrophobic coatings on the board, but this does not guarantee protection against corrosion. After contact with water, disassemble the smartphone and clean the board with alcohol.

FAQ: Answers to popular questions