How to Open the Back of Xiaomi Phone: Safe Ways for All Models

The back cover of Xiaomi is not just a decorative element, but a complex design that protects the internal components from dust, moisture and mechanical damage. However, sooner or later, the owner faces the task of removing it, whether it is replacing the battery, repairing the camera plume or cleaning from dust. The manufacturer rarely provides easy access to the “inners” of the device, so the process requires accuracy and knowledge of nuances.

In this article, we will look at all the current ways to open the back cover on Xiaomi, Redmi and POCO smartphones, from low-end screw-mounted models to flagships with adhesive sealant and IP53/IP68 protection. You will learn what tools you need, how to avoid damage to the plumes and what to do if the cover is stuck to the case. And we will also reveal the secret method of heating glue without a hair dryer, which is used in service centers.

Why you can not just lid the knife: risks and consequences

Many users, trying to save on tools, use tools at hand: knives, credit cards or even screwdrivers. This is a gross mistake that can lead to:

• 🔹 Cracks on the lid – Xiaomi plastic and glass are fragile, especially in glossy-coated models (e.g. Redmi Note 12 Pro)+).
• 🔹 Damage to plumes - thin tapes are under the cover connecting power buttons, speakers and antennas.
• 🔹 Breakdown of the adhesive layer - after that, the lid will not fit well, and dust and moisture will penetrate inside.
• 🔹 Loss of tightness - in models with protection IP68 (Xiaomi 13 Ultra, for example, will cancel the warranty.

What's more, in 80 percent of self-openings without tools, users break the latches, the plastic perimeter locks that hold the lid in place, and they can only be repaired in a service center using the help of a service center. 3D-sealing.

⚠️ Warning: If your smartphone is warranty-free, opening the lid will automatically cancel it.The manufacturer determines whether the screws have been stripped of tracks (they have a special coating) or damaged battery seals.

What tools you need: minimum and professional set

A specialized tool will be required to safely remove the lid, the minimum set includes:

• 🔧 Plastic mediator or suction cup - for careful putting of the cover (for example, iFixit set or analogue for 200-300) ₽).
• 🔧 Thin screwdriver with nozzles — PH00 (for Xiaomi screws and Y00 (for some POCO).
• 🔧 Tweezers – for extracting plumes and small details.
• 🔧 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).

Professionals also use:

• 🔧 Magnetic mat – not to lose screws (in Xiaomi) 12T Pros are over 20 pieces!).
• 🔧 Ultraviolet glue - to restore tightness after assembly.
• 🔧 Microscope or magnifier - to check contacts and soldering.

If you plan to disassemble smartphones regularly, it makes sense to buy a repair kit (e.g., Xiaomi Mi Repair Kit for 1500–2000₽) that includes all the necessary tools, including an antistatic bracelet to protect the board from discharges.

Step-by-step: how to open the lid on different Xiaomi models

The technology of mounting the lid depends on the model and year of release of the smartphone. We will discuss three main types:

1. The screw mount is in older models (Redmi 4X, Mi A1).
2. Latches + glue – most modern smartphones (Redmi Note 10 Pro, POCO X3 Pro).
3. Full slug is for flagships with IP68 protection (Xiaomi 13, Mix Fold 2).

1.Skirk-mounted models (until 2018)

Algorithm for Redmi 3S, Mi 5, Mi Max 2:

1. Turn off the phone and remove the tray for SIM-map.
2. Unscrew the two screws at the bottom of the case (near the USB-C connector).
3. Insert the mediator into the gap between the lid and the housing at the connector and carefully lead along the perimeter.
4. Lift the lid - it should separate without effort.

Models with latches and glue (2019-2022)

Example: Redmi Note 9 Pro, POCO F3, Mi 10T.

Turn off the phone and remove it. SIM-map|

Heat the edges of the cover with a hair dryer (60–80°C) for 2-3 minutes |

Hold the suction cup at the top (near the camera)|

Carefully pull the sucker up, inserting the mediator into the slot |

Swipe the mediator around the perimeter, snapping the fixers

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The main challenge is not to damage the fingerprint scanner plume, which is often glued to the lid. In the POCO X3 NFC, it is located to the right of the battery and is attached to double-sided tape.

3. Flagships with full slurrying (2022-2026)

For Xiaomi 12 Pro, 13 Ultra, Mix Fold 3, you will need:

1. Warm the cover with a hair dryer around the perimeter (temperature 70-80 ° C).
2. Use two suction cups - one at the top, the second at the bottom, to pull evenly.
3. Insert a metal blade (0.1–0.2 mm thick) into the slot and slowly lead it along the edge.
4. Re-heat the problem area when resisting.

⚠️ Attention: In models with IP68 There's a rubber seal under the lid, and if you damage it, it loses its water protection, and then you grease it with silicone grease after assembly, WD-40 Specialist).

Frequent Mistakes and How to Avoid Them

Even experienced users make mistakes when parsing Xiaomi, and here are the most common:

• 🚫 Ignoring battery shutdown - be sure to unplug battery plume before work! Otherwise, you risk closing the fee.
• 🚫 Too much heat - temperature above 90°C deforms plastic and damages OLED-screen (in Xiaomi 13 Lite, the screen is glued to the cover!).
• 🚫 Using metal tools without protection – even a small scratch on antenna lines will degrade the network signal.
• 🚫 Incorrect sequence of disconnecting plumes - first turn off the battery, then the display, and only then the rest of the components.

Another common problem is that the power button's flexible plume is damaged. In the Redmi Note 11 Pro+, it passes under the battery and often breaks when the battery is not properly removed. To avoid this, use plastic tweezers and tweez the plume with the edge.

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Before assembly, take a picture of the location of all the plumes and screws. Xiaomi often uses screws of different lengths - if you confuse, you can damage the board.

How to put your phone back together: sealing tips

Assembling is as important as disassembly.

1. Clean the inner surface of the cover and the body of glue residues with isopropyl alcohol.
2. Apply a new adhesive layer: For budget models, 3M double-sided tape (0.2 mm thick) will do. For flagships, use B-7000 liquid adhesive or Tesa 61395 (water resistant).

rod-pin

IP68

If you disassembled the model with water protection, after assembly, be sure to check the work:

• 🔋 Battery - must be charged without overheating.
• 📶 The antenna signal of the network should not be "sitting down".
• 🔊 Speakers and microphones – check for wheezing.

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If the phone overheats or discharges quickly after assembly, you probably damaged the thermal paste on the processor, which should be replaced (for example, on the Arctic MX-4).

When it is better to contact the service: signs of complex repairs

Not all breakdowns can be repaired by yourself. Contact the service center if:

• 🛠️ The cover is deformed or cracked - you will need a replacement body.
• 🛠️ After parsing, the touchscreen or display does not work - perhaps the plume or matrix is damaged.
• 🛠️ The phone is not switched on or stuck on the logo - this may indicate damage to the board.
• 🛠️ Replacement of chips (e.g., power controller in the POCO F4 GT).

The cost of repair in official Xiaomi services:

If you are not sure about your skills, it is better to entrust the repair to professionals. For example, replacing the battery in the Xiaomi 11T Pro requires soldering contacts, since the battery is soldered to the board.

FAQ: Answers to Frequent Questions