Xiaomi Mi TVs TV T9 They are popular due to the combination of high quality images, Google functionality TV But even these reliable devices can have problems over time: dust buildup inside the case, needing to replace speakers, repairing the motherboard or upgrading RAM. In these cases, you need to remove the back cover - but it can be scary for a layman: the risk of damaging the latches, tearing the plumes or losing the warranty.
In this article, we will discuss in detail how to safely open the Xiaomi cover. T9 Any diagonal (55, 65, 75) without damaging the body and internal components, you will learn what tools you need, where the hidden latches are located, and how to avoid typical disassembly errors. And if you are planning to clean or repair β we will give recommendations for handling the internal modules of the TV.
Preparation for disassembly: tools and security measures
Before you start removing the lid, make sure you have everything you need. - Xiaomi T9 β It is a modern TV with a thin body and brittle plastic mounts, so the wrong tool can lead to cracks or chips.
Here's what you'll need:
- π§ Plastic blade (or mediator) - to disconnect latches without scratches. Metal screwdrivers can not be used, they will damage the body.
- π Suction cup (optional) - will help to lift the lid after snapping.
- π§² Magnetic screwdriver (cross, size) PH0 or PH1) β to unscrew the screws, if they are in your model.
- πΈ Smartphone β to photograph the location of plumes and screws before disassembly.
- π§Ή Soft fabric - for cleaning dust inside the case (if the purpose of dismantling is cleaning).
Also, be sure to follow safety measures:
- β‘ Turn off the TV from the outlet 10-15 minutes before disassembly - this will discharge the capacitors and eliminate the risk of electric shock.
- π§€ Work with gloves to avoid leaving greasy marks on internal components.
- πͺ Place the TV screen down on a soft surface (such as a blanket or foam) to avoid scratching the matrix.
β οΈ Attention: If your Xiaomi T9 If it breaks down, the service center can refuse to repair it for free, and if you think about it, you might want to take the risk, you might want to go to the professionals.
Where are the latches and screws on Xiaomi T9?
The Xiaomi Mi body TV T9 It's mounted on a combination of plastic latches and (in some versions) screws, and it depends on the diagonal of the TV, but the overall layout is the same for all models in the series.
Main anchorage points:
- πΉ On the perimeter of the cover - latches are located in step ~15-20 cm They can be hidden under a decorative frame.
- πΉ In the lower part (where the stand) - often there are 2-4 screws under the plugs.
- πΉ Around the ports (HDMI, USB, antenna connector) - here the latches can be denser, since the cover is adjacent to the connectors.
Below is a table with the exact number of fasteners for different diagonals:
| Diagonal | Number of latches | Number of screws | Features |
|---|---|---|---|
| Xiaomi T9 55" | 18β20 | 2 (bottom) | Screws hidden under rubber plugs |
| Xiaomi T9 65" | 22β24 | 4 (2 bottom, 2 sides) | Latch near ports HDMI harden |
| Xiaomi T9 75" | 26β28 | 6 (2 at bottom and sides) | A suction cup is required to remove the lid |
To find hidden screws, look at the bottom of the case for small rubber plugs, which can be tampered with a nail or a plastic blade, and underneath these are usually screws under a cross screwdriver.
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If you're not sure if your model has screws, try pulling the lid gently after the latches are snapped. If it doesn't, look for hidden mounts.
Step-by-step: how to remove the cover from Xiaomi T9
Now, to the process itself, follow the instructions in strict order so that you don't damage the body or the internal components.
Make sure the TV is off the network
Take a photo of the back panel (arrangement of screws and stickers)
Prepare the workplace (soft surface, good lighting)
Wear gloves (optional)-->
Step 1. Remove the stand (if installed)
If the TV is on a stand, you have to take it off.
- Turn the TV downward (put it on a soft surface).
- Find 4 screws that attach the stand to the body (usually they are under stubs).
- Unscrew them with a cross screwdriver and carefully remove the stand.
Step 2: Unscrew the screws (if any)
As we have said before, in some versions of Xiaomi T9 There are screws under rubber plugs:
- Find and remove the stubs (plug them with a spatula).
- Unscrew the screws and fold them in a separate box, so as not to lose them.
Step 3: Latch separation
This is the most important step. Start with the bottom left corner of the lid.
- Insert a plastic blade into the gap between the lid and the body.
- Carefully press to separate the first latch. You will hear a characteristic click.
- Move around the perimeter, repeating the action for each latch. Take your time - if the lid does not lend itself, check if all latches are snapped.
Step 4. Remove the lid.
When all the latches are disconnected, lift the lid. If it's tight, use a suction cup:
- Attach the suction cup to the center of the lid.
- Pull up while holding the lid with your hand.
- Put the lid aside without bending it - the plastic can crack.
Now you have access to the internal components of Xiaomi T9. If the purpose of disassembly is cleaning, you can proceed to remove dust using a soft brush or vacuum cleaner with low power.
β οΈ Warning: Do not touch the boards with your bare hands - static electricity can damage the chips. If you need to touch the motherboard, first touch the grounded metal object (for example, a heating battery).
What to do if the latch breaks?
What to do after removing the lid: cleaning, repair, upgrade
When the lid is removed, the internal components of Xiaomi will open before you. T9:
- π₯οΈ The motherboard is the βbrainβ of the TV, responsible for signal processing.
- π The speakers are usually located at the bottom.
- π‘ Wi-Fi and Bluetooth module β a small board with antennas.
- π Power supply unit - is located separately, often in a metal casing.
- π‘ Illumination (LED-tapes) - along the screen frame.
Depending on the purpose of the disassembly, your further actions may differ:
| Purpose of disassembly | What can I do? | Risks. |
|---|---|---|
| Dust cleansing | Remove dust with a brush or vacuum cleaner (at minimum power) | Damage to contacts with strong pressing |
| Replacement of speakers | Disconnect the plumes of old speakers, connect new ones | Incorrect connection β lack of sound |
| Upgrade RAM | Add the RAM bar (if supported) | Incompatibility of modules β TV won't turn on |
| Illumination repair | Replace burnt-outs LED-tape-diode | Damage to the plume β stripes |
If you plan to clean, use a soft brush (for example, for drawing) or a vacuum cleaner with a furniture nozzle. Don't blow with your mouth - saliva can get on boards and cause corrosion. For persistent dust, you can use isopropyl alcohol (70% or higher) and cotton swabs, but in no case water!
When repairing or upgrading, be sure to photograph the original location of the plumes and connectors. For example, when replacing speakers, it is easy to confuse the polarity of the connection, which will lead to distortion of the sound.
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If you're not sure about your soldering or electronics skills, you'd better trust the board repair or component replacement to the professionals. A mistake could cause the TV to fail completely.
How to put the TV back together: nuances and checks
Assembling Xiaomi T9 After the disassembly, it's just as important:
- Make sure that all the plumes and connectors are tightly connected (but without excessive effort).
- Check whether there are any foreign objects (screws, pieces of plastic) inside.
- Lay the cables so that they do not clamped the lid.
When you install the lid back:
- Start with the top part β it is easier to combine latches.
- Press the lid evenly so that all latches fall into place. You will hear a series of clicks.
- If the cover does not sit tightly, check if any cable interferes.
Don't turn on the TV right away.
- Connect it to the socket and check the power indicator (should burn red or white).
- Make sure there are no extraneous sounds (coding, squeaking) - this may indicate a short circuit.
- Only then press the switch button.
β οΈ Warning: If the TV doesn't turn on or malfunctions after assembly (no image, distorted sound), don't try to disassemble it again immediately. disconnect from the network and check: Correct connection of all plumes (especially to the motherboard). Presence of damage on boards (blackened elements, bloated capacitors) Integrity of the power cable.
Frequent Mistakes and How to Avoid Them
Even experienced users sometimes make mistakes when disassembling Xiaomi T9. Here are the most common ones and ways to prevent them:
- π¨ Use of metal tools β scratches on the body or broken latches Solution: Use only plastic blades.
- β‘ Disassembly without disconnection from the network β Solution: Always remove the plug from the socket 10-15 minutes before work begins.
- πΈ Absence of photo of the insides before disassembly β Solution: Take pictures of each stage, especially the location of the plumes.
- π§ Loss of screws or plugs β Solution: Keep all the small parts in one box.
- π§Ή Cleaning with a wet cloth β Solution: Use only dry brush or alcohol.
Another common problem is the damage to the backlight plume, which goes from the motherboard to the motherboard. LED-If you accidentally hit it, it may show vertical stripes or flash backlights, in which case the plume needs to be replaced (you can do this yourself by buying a spare part on AliExpress or at a service center).
If the TV turns on after assembly but there is no sound, check:
- Connecting speakers to the motherboard (possibly the connector has moved away).
- The sound settings in the TV menu (sometimes reset after disassembly).
- Integrity of the speakers themselves (call them with a multimeter).
When the disassembly will not help: cases for the service center
Not all Xiaomi breakdowns T9 There are cases where disassembly will not only not help, but can also aggravate the problem:
- π₯ The TV does not turn on at all (no indication, does not respond to the remote) - it may be a malfunction of the power supply or motherboard, requiring diagnosis.
- π₯ The smell of burning is a sign of a burnt-out element on the board (capacitor, transistor.
- πΊ Screen broken or cracked β replacing the matrix requires special equipment and skills.
- π There is a sound, but no image (or vice versa) β the problem may be in the T-CON board.
- π» The TV is constantly restarted - this may be a consequence of damage to the firmware, which must be reflashed through the service menu.
It is also worth considering that some components for Xiaomi T9 (For example, a motherboard or a matrix costs up to 50-70% of the price of a new TV, in which case repairs may not be cost-effective, and it is more logical to consider buying a new model.
If you still decide to repair your TV yourself, but are not sure about the diagnosis, use the service codes to check the condition of the components. T9, press the remote:
Settings β About TV β Press sequentially: Up β Up β Down β Down β Left β Left β Right β Right β OKIn the menu that opens, you can check the state of the backlight, speakers and other modules.
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If the TV is warranty and the problem is covered by warranty obligations (for example, factory defect), do not disassemble it yourself.