How to disassemble the smartphone Redmi from Xiaomi: instructions with photos and warnings

Xiaomi’s Redmi smartphones are known for their price-performance balance, but even they are not immune to breakdowns. Disassembly of the device may be needed to replace the battery, clean the dust, repair the display or diagnose internal components. However, improper dismantling often leads to damage to the plumes, loss of leakage or even complete failure of the gadget.

In this article, you will find step-by-step instructions for disassembling the popular Redmi Note 12/11/10, Redmi A2/A1 and others, as well as learn what tools you will need, how to avoid typical errors and what to do if something goes wrong, we will analyze both classic models with a removable rear cover and modern devices with adhesive attachment.

Warning: disassembling the smartphone deprives you of Xiaomi guarantees, and wrong actions can lead to short circuit or loss of data. If you are not sure of your skills, you should contact the service center. For those who are willing to take risks, then the most detailed guide.

What tools are needed to disassemble Redmi

Without the right tools, it's almost impossible to disassemble the Redmi -- you'll either damage the body or you won't be able to get to the internal components.

• 🔧 Plastic mediators (2-3) for gently putting the lid on and detaching the plumes. Metal tools scratch the body!
• 🔨 Cross screwdriver (PH00 or PH0) — for screws in most Redmi models. Some flagships may require Y00 or T3.
• 🧲 Magnetic mat or tray – so as not to lose small screws (in Redmi Note 12 Pro+, for example, there are more than 15 pieces!).
• 🔥 Dryer or thermo-air station – for softening the adhesive on models with a non-removable cover (for example, Redmi K60).
• 📱 Suction cups (2 pcs) – help lift the display or back panel after heating.
• 🔋 Multimeter – to check the battery voltage before disconnecting (required if the phone is not turned on!).

For models with IP53 protection (for example, Redmi Note 12 Pro), you will additionally need a sealant for re-assembly – the original Xiaomi glue or an analogue of the B-7000 type.

⚠️ Warning: Do not use knives or screwdrivers with a wide sting to lid, it is almost guaranteed to lead to cracks in the plastic or chips in the glass. Even if you can't see external damage, microcracks can violate the tightness.

Preparation for the disassembly: what to do before the beginning

Before you take up the screwdriver, follow the mandatory preparatory steps:

1. Turn off your phone and remove the SIM- card + memory card (if any). On non-removable models (Redmi Note 12 and later), discharge the battery to 25-30%, which will reduce the risk of fire in case of accidental circuit.
2. Back up your data via Settings → About Phone → Backup or with Mi PC Suite. Once disassembled, warranty data recovery may not be possible.
3. Take a picture of the original state of the phone from all sides – this will help with the assembly (for example, to properly position the sealing gums).
4. Check the screw mounting for your model – the Redmi K-series and Note Pro often use screws of different lengths. To confuse them when assembled = the risk of damaging the motherboard.

If you disassemble the phone due to battery problems (blown, quick discharge), do not heat the case with a hairdryer - this can lead to a leak of electrolyte, in which case it is better to take the device to the service immediately.

Switched off and discharged to 25-30% |Data backup |SIM and microSD deleted |All tools prepared |Photographed initial state-->

⚠️ Warning: On Redmi models with NFC- antenna in the back cover (e.g., Redmi Note 11 Pro+), if the panel is not neatly removed, the antenna can be damaged. If NFC is important to you (contactless payments, subway), disassemble especially carefully or use a special glue for NFC when you are back assembled.

Redmi step-by-step disassembly: universal instruction

Although the design of Redmi models is different, the overall disassembly algorithm is similar, and below is a universal circuit that is suitable for most vehicles (exceptions are listed separately).

Step 1: Removing the back cover

On the modern Redmi (starting with the Note 10), the back cover is glued to remove it:

1. Heat the edges of the body with a hair dryer (temperature not higher than 80 ° C) for 2-3 minutes. Keep the hair dryer at a distance of 5-7 cm, constantly moving it.
2. Place the suction cup at the bottom of the phone (near the USB-C connector) and gently pull up.
3. Insert a plastic mediator into the gap, and slowly move it around the perimeter, separating the glue, and be especially careful at the corners, because there are often latches.

For models with a removable cover (for example, Redmi 9A or Redmi 8), it is enough to tweak the panel with a mediator on the side of the slot for SIM- cards and pull up.

Step 2: Spinning the screws

After removing the cover, you will see:

• 🔋 Battery (stick or fixed with a plastic frame).
• 📱 Motherboard closed with metal screen.
• 📶 Antenna modules and plumes.

Carefully unscrew all the screws (the number varies from 8 to 15 depending on the model). Redmi K-series often uses screws of different lengths - remember or take pictures of which from where.

Step 3: Battery disconnection

This is the most dangerous stage, even if the phone is turned off, the battery is still on.

1. Find the battery plume (usually a black or orange connector labeled BATT).
2. Carefully apply a plastic mediator (not metal!) to the connector, if the plume is glued, preheat it with a hair dryer.
3. Check the voltage at the battery contacts with a multimeter - it should be 0 V. If not, repeat step 2.

On Redmi Note 12 Pro+ and later, the battery can be glued with double-sided tape. To remove it, pull a special loop (if any) or gently tuck in a plastic spatula, preheating the case.

Step 4: Removing the motherboard

After the battery is turned off:

1. Disconnect all the plumes leading to the board (display, cameras, buttons) and they are fixed by latches, lift them up with a thin screwdriver.
2. Unscrew the screws that attach the board to the case. In the Redmi K60 and similar models, the board can be additionally fixed with a metal frame.
3. Carefully raise the charge on one side, and if it doesn't respond, check if all the plumes are disconnected.

Don't pull the bill around the corners, it can damage soldered contacts, it's better to raise it evenly from all sides.

Step 5: Disassemble the remaining components

Now you can:

• 📸 Replace the cameras (the Redmi Note 12 Pro+ has three cameras – the main, ultra-wide-angle and macro).
• 🔊 Replace speakers or microphones (a common problem after moisture is ingested).
• 📶 Check antenna modules (if the network is not catching well).
• 🖥️ Replace the display (requires complete disassembly and heating of the adhesive).

To replace the display or touchscreen, additional heating (up to 90°C) and special glue will be required, a process we will discuss separately in the next section.

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Never use metal tools to detach the plumes – even a small scratch on the contacts can cause a signal to be lost (e.g., the camera or touchscreen will stop working).

Features of dismantling popular models Redmi

The design of Redmi smartphones varies greatly depending on the series and year of release, and below are the key nuances for the most common models.

The Redmi K-series (such as the K50 Gaming) is characterized by an additional radiator to cool the processor, which must be carefully separated from the chipset during disassembly so as not to damage the thermal paste.

In Redmi Note 10 Pro and older models, there is a frequent problem with the fingerprint scanner’s peeling plume (if it’s built into the power button).

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If you're disassembling the Redmi Note 12 or later, look at the sealing gums around the buttons and connectors, and when you build them, you have to remove the old glue and install new ones, otherwise the phone will lose its water protection.

How to replace the screen on Redmi: a separate guide

Replacing the display is one of the most difficult procedures. In Redmi, the screen is glued around the perimeter, and underneath it are the plumes of the touchscreen and the display module.

1. Heat the screen with a hair dryer (90°C) for 3-5 minutes. Start at the bottom of the plume connector.
2. With a suction cup, gently raise the screen (no more than 2 mm!) insert plastic mediators into the slot and slowly lead them around the edges.
3. Once the screen is detached, don't lift it completely -- it's still connected by plumes -- unscrew the metal frame that holds the plumes, and disconnect them.
4. Install a new screen by first clearing the frame of the old glue. Use a new double-sided tape (e.g. 3M 9448A).
5. When assembly, heat the glue with a hair dryer and tightly press the screen for 1-2 minutes.

In the Redmi Note 12 Pro+ and K60 models, the screen can be glued to the frame, which makes it difficult to replace, in which case it is better to use a special machine to separate the glass (there is in service centers).

⚠️ Warning: If the Redmi screen has been replaced with stripes, flickering or a broken touchscreen, check: The density of the plumes (sometimes helping to reconnect them) The integrity of the contacts on the motherboard (may be damaged when heated) The compatibility of the new screen with the model (for example, the Note 11 Pro display will not work for the Note 12 Pro).

Typical Redmi Disassembly Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes that lead to permanent damage.

• 🔥 Overheating the body with a hair dryer -- temperatures above 90 °C can melt plastic latches or damage the battery. Use thermocouples for control.
• 🔧 Tangled screws -- Redmi K series screws of different lengths. If a long screw hits the short one, it can break through the board.
• 📱 Flexible plumes are damaged -- camera plumes and fingerprint scanners are particularly common, and always only use plastic to smear them.
• 🔋 Short circuit – forgetting to disconnect the battery or touching the board with metal tools.
• 💧 Loss of moisture protection – if the seals or glue are not replaced during assembly, the phone will no longer be protected from moisture (even if it was IP53).

Another common problem is that antenna modules get damaged when the back cover is not removed carefully. In the Redmi Note 12 Pro+, for example, the antennas for 5G and Wi-Fi 6 are placed under a metal frame, and if you bend it, the signal reception will deteriorate.

Build Redmi after disassembly: what to look for

It's often harder to assemble a phone than to disassemble it.

1. Check all seals - if they break or lose elasticity, replace them. IP53 moisture protection depends on their integrity.
2. Apply the new glue to the back cover or screen. Redmi will do the B-7000 or the original Xiaomi glue.
3. Tighten the screws cross-to-cross to avoid skewed board. Do not make excessive efforts - the thread in the plastic case easily breaks.
4. Check all components before final assembly: Cameras (main + front), speakers and microphones, volume and power buttons, SIM- cards and network (call another phone), NFC and contactless payments (if any).

After assembly, don't turn the phone on right away - let the glue grab (at least 30 minutes). If you've replaced the battery, primero charge it up to 50% with the original charger.

• Is the radiator installed correctly (in liquid-cooled models).
• Is the thermopaste applied to the processor (if it was washed off with alcohol).
• Are there any slacks (this can cause overheating of contacts).

FAQ: Frequent questions about Redmi disassembly