Disassembly of the Xiaomi projector: detailed instructions for all models (2026)

Introduction: when and why to disassemble the Xiaomi projector

Xiaomi projectors are popular devices for home theaters, presentations and games, but even these sometimes require disassembly. The reasons can be different from trivial cleaning of the optics to changing the lamp, repairing the cooling system or diagnosing malfunctions. For example, if the image became dull, artifacts appeared or the projector began to overheat, you can not do without disassembly.

But disassembling a projector is not the same as disassembling a smartphone, it's more detail, more brittle elements and more risk of damaging the optics. 90% of Xiaomi projector failures are due to dustiness in the LED module or fans, not a breakdown in the matrix, which means that many problems can be solved by yourself if you act carefully.

In this article, we will discuss:

• 🔧 What tools will be needed to disassemble different models (Mi Laser Projector, Mi Smart Projector, Mi Portable Projector)
• ⚠️ Common errors that cause the device to break down
• 📸 Step-by-step photos with a description of each stage
• 🔄 How to assemble the projector back without unnecessary details

If you've never really understood a technique, don't worry. We'll explain each step in detail, point out pitfalls, and give you tips on how to avoid common problems, and the key is to take your time and follow the instructions.

Preparation for disassembly: tools and safety

Before you start, make sure you have everything you need, and without the right tools, you risk damaging the body, ripping off the screws, or scratching the optics, and here's the minimum set:

• 🔨 Screwdrivers: cross-hairdriver (PH0, PH1), flat (1.5-2 mm), hexagon (for some models)
• 🧲 Magnetic mat or screw container (so as not to lose small details)
• 🧴 Plastic blades (to separate latches without scratches)
• 🔍 Loop or flashlight (to inspect small details and contacts)
• 🧼 Wormless napkin and alcohol (for cleaning optics and contacts)

Also, prepare the workspace: the desk should be clean, smooth and well lit, and it is advisable to use an antistatic mat to avoid damage to electronic components by static electricity.

⚠️ Warning: Don't disassemble the projector if it was turned on less than 30 minutes ago. The lamp or LED module can be hot and cause burns!

If you're disassembling a projector to clean your optics, prepare a compressed air can and a soft brush in advance. Don't use wet wipes for the lens - this can damage the coating!

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Before disassembling, take a picture of the location of all the screws and parts, which will make it much easier to reverse assemble, especially if you are disassembling the projector for the first time.

Step-by-step disassembly of the Xiaomi projector (universal instructions)

Although the design of Xiaomi projectors differs depending on the model, the general principle of disassembly is similar. We will describe the universal algorithm, and then specify the nuances for specific devices.

Step 1: Removing the back cover

On most models, the disassembly begins with the removal of the back panel.

1. Disconnect the projector from the network and remove all cables.
2. Turn the device downward (on a soft surface so as not to scratch the lens).
3. Unscrew all the visible screws on the back. In some models, they're hidden under rubber legs or stickers.
4. Carefully apply the lid with a plastic spatula starting at one of the corners. Be careful - the latches can be brittle!

Step 2: Unconnecting the plumes and cables

Once you remove the lid, you'll see the internal components: the motherboard, the power supply, the fans and the plumes. Don't pull the plumes! They need to be carefully disconnected, before lifting the locks (usually white or black).

Pay attention to:

• 🔌 Display plume (if any) - it goes to the lens
• 🔊 The plume of speakers - often attached to the bottom of the body
• 💨 Fans connectors - they are easy to damage if you pull the wires

Take a picture of the location of the connectors|

Check if there are any hidden fixtures|

Disconnect the plumes only for plastic tongues|

Do not make any effort if the connector does not yield.|-->

Step 3: Access to optics and cooling system

If you're going to disassemble the optics, you have to get to an LED module or a lamp. In a laser projector, this unit is usually located in the center, in the middle of the light. LED-Models closer to the lens.

For cleaning:

1. Remove the protective shield (if any) from the fan.
2. Remove dust from the fan blades with compressed air (hold the blades so they don't rotate!).
3. Wipe the lens with a lilaless napkin soaked in isopropyl alcohol (not ethanol!).
4. Blow the optical unit with air, avoiding touch.

⚠️ Attention: Xiaomi laser projectors have high-voltage capacitors that can retain charge even after a power outage.Don't touch the power supply board with your bare hands - use isolated tools!

Nuances of disassembly of popular Xiaomi models

Each model of the Xiaomi projector has its own characteristics, and let's look at the most common devices and their pitfalls.

Mi Laser Projector 150 and Mi Laser Projector 4K

These models are more difficult to disassemble because of the laser module and the cooling system.

• 🔧 The screws under the lid are hidden under decorative plugs (they need to be poked with a knife or spatula).
• 💨 Fans are attached to rubber shock absorbers - do not lose them when removing them.
• 🚨 Laser module is sensitive to static electricity. Touch metal body before working with it.

To access the optics, you need to remove a metal screen that is attached to 4 screws. Be careful - there are fragile lenses underneath.

Mi Smart Projector 2 and Mi Smart Projector 2 Pro

These models are easier to disassemble, but have their own tricks:

• 📱 The legs are glued to bilateral tape - they need to be carefully tampered and laid down.
• 🔊 The speakers are attached to the latches - do not pull the wires, otherwise you will tear the connectors.
• 🔋 The battery (in portable versions) is connected through a connector with a locker - it must be lifted before disconnection.

The Mi Smart Projector 2 Pro has an extra radiator on its processor, and when you build it, make sure to apply a new thermal paste if you've taken it off.

Mi Portable Projector Youth and Mi Portable Projector 2

Portable models are more compact, but they are more difficult to disassemble due to the miniature details:

• 🔄 The case is glued to the seam - you will need a hair dryer to soften the glue (temperature not higher than 60).°C!).
• 🔋 The battery takes up half of the interior space – don’t puncture it!
• 📸 The lens is fixed by a threaded ring - you need a special key or pliers with soft sponges to remove.

These models often clog a small fan next to the processor with dust, and you can wash it with alcohol, but before that, be sure to disconnect from the board.

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In Xiaomi portable projectors, the main cause of overheating is the dusty radiator of the processor, not the optics. Clean it first!

Common Mistakes in Disassembly and How to Avoid Them

Even experienced craftsmen sometimes make mistakes that lead to projector failure, and we've collected some of the most common ones and we'll tell you how to prevent them.

Mistake 1: Damage to plumes

The plumes in Xiaomi projectors are thin and fragile, and many users pull them instead of squeezing the lock, resulting in a break in contacts or damage to the motherboard connector.

How to avoid:

• 🔍 Always look for a white or black lock on the connector and pick it up before removing the plume.
• 🖐️ Keep the plume by the edges, not by the middle.
• 📸 Take a photo of the location of the plumes before disconnecting.

Mistake 2: Loss of screws or plugs

Small screws and rubber plugs are easily lost, and without them the body will not assemble tightly, which leads to dust getting inside and deterioration of cooling.

How to avoid:

• 🧲 Use a magnetic mat or divide the screws into containers (e.g., "cover screws", "fan screws").
• 🏷️ Sign containers or make notes on paper.
• 🔍 Check for all the plugs before final assembly.

Mistake 3: Optics damage

The lenses and lenses are the most expensive and fragile parts of the projector, and many users clean them with dry cloth, scratch them with plastic tools, or touch them with their fingers, leaving greasy marks.

How to avoid:

• 🧴 Use only lilaless wipes and isopropyl alcohol (at least 90%).
• 🚫 Don’t blow on your optics with your mouth – saliva contains fats that leave divorces behind.
• 🔍 Before cleaning, blow off large dust particles with compressed air.

⚠️ Warning: If you have a stain or a blur on your screen after cleaning, you have damaged the lens covering, and you will need professional polishing or a replacement of your optics.

Build the projector after disassembly: step-by-step checklist

Getting the projector back together is often harder than disassembling it. The rule is, go back and check every step. Here's a checklist for a successful build:

Check the integrity of all plumes and connectors|

Make sure that the screws are screwed into the same holes (do not confuse the length!)|

Connect all fans and speakers|

Install protective screens and plugs|

Check the buttons and ports before final assembly|-->

Pay particular attention to the following points:

• 🔌 The plumes must be connected to the end – if there is a gap, the contact will be unreliable.
• 🔧 The screws should not be pulled, otherwise you can tear the thread.
• 💨 Fans should rotate freely - check if they hit the wire.
• 🔋 Battery (in portable models) must be securely fixed.

Don't turn on the projector right after assembly.

1. Connect it to the network and check if the indicators are on.
2. Make sure the fans start when turned on.
3. Check the image quality on the test video (look for artifacts, blur).

If the projector fails to turn on or malfunctions, disassemble it again and check:

• Connecting the power supply to the motherboard.
• Integrity of the fuse (if it is in your model).
• Correct installation of the lamp / LED module (laser projectors have a position sensor).

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If the projector makes unusual sounds (squeaking, crackling) after assembly, turn it off immediately! This may indicate that a foreign object has hit the fan or the optics are not installed correctly.

When the disassembly did not help: diagnosis of malfunctions

If the projector doesn't work after cleaning or repair, it's probably deeper than that.

If you're not sure about your abilities, you should contact a service center, for example, changing the lamp in the Mi Laser Projector requires calibration, which can only be done with special equipment.

You can use the service menu (if you have one in your model) to log in:

1. Turn off the projector.
2. Press and hold the Menu buttons. + OK remote.
3. Turn on the projector without releasing the buttons.

In the service menu you can check:

• 🔋 Lamp/LED state (Lamp Hours parameter).
• 🌡️ Temperature of components (Temp Sensor).
• 📊 Firmware and Error Version (Error Log).

⚠️ Warning: Do not change the settings in the service menu unless you know what they mean.

FAQ: Frequent questions about the dismantling of projectors Xiaomi