Modern smart TVs Xiaomi Mi TV and Mi Box are controlled through stylish minimalist remotes, which are often devoid of the usual physical buttons. Device owners face the need to access the insides of the device for various reasons: from banal replacement of saturated power elements to serious repair of stuck keys. Understanding the design of your accessory is the first step to a successful solution to the problem without contacting the service center.
In most cases, the standard algorithm of actions is simple, but different models of Bluetooth and IR panels have unique features of mounting the case. Incorrect exposure to plastic can lead to chipping or break latches, which will make the device unaesthetic or non-working. In this article, we will discuss in detail all known ways to open popular models of remotes from Xiaomi.
It should be noted right away that some versions of devices are indissoluble in the classical sense, and to access the contacts of the battery compartment requires a specific approach. If your remote control stopped responding to commands, do not rush to throw it away - often the problem lies in the oxidation of contacts or displacement of conductive rubber, which is easily corrected at home with a thin tool.
Definition of the type of remote and preparation of tools
Before you start mechanically, you need to clearly identify the model of your device. Xiaomi uses several types of remote controls, and the design of their bodies is radically different. Standard IR models usually have a hidden compartment for batteries, while more expensive Bluetooth versions can be made in the form of a monolithic unit.
To safely disassemble, you will need the minimum toolkit that is found in any home craftsman's drawer. The main rule is to avoid using metal objects with sharp edges, such as knives or screwdrivers with a wide sting, as they leave irremovable scratches on glossy plastic.
⚠️ Warning: Before starting any work, be sure to remove the batteries if they are installed to avoid short circuits in case of accidental contact of tools with the board.
The list of necessary equipment includes:
- 🔧 Thin plastic card or spatula for opening the case.
- 🔧 Set of small cross screwdrivers (sizes) PH0, PH00).
- 🔧 Tweezers for extracting small parts and springs.
- 🔧 Isopropyl alcohol and lilaless wipes for cleaning contacts.
If you plan to not just replace the batteries, but to do a full cleaning or soldering, it is also necessary to have a magnifying glass and a good light source. Careful preparation of the workplace will prevent the loss of small screws and speed up the process of assembling the device back.
Instructions: how to open the standard Xiaomi TV remote
The most common model, complete with Mi TV Sticks and younger TV series, looks like an elongated black rectangle. Many users mistakenly search for a battery lid on the back, unaware that it is part of the design and requires careful shifting. The algorithm of actions here is simple but requires a certain skill.
Take the remote control and find the Mi logo or stylized image on the back, and that's the removable lid, and you have to press your thumb on the top of the lid (close to the buttons) and simultaneously move the bottom of the lid down, towards the charging jack or bottom end, and a characteristic click will indicate a successful opening.
☑️ Checking before disassembly
Once the lid is removed, you will have access to a compartment for two AAA batteries. If the goal was only to replace them, then at this stage the basic manipulations are complete. However, if the remote requires deep cleaning, you can carefully remove the batteries themselves and wipe the contacts. Some revisions will require two small screws to be twisted under the rubber legs or inside the battery compartment itself.
It's important to remember the state of the conductive rubber, which transmits the signal from the buttons to the board, and when it is opened frequently, it can shift or become contaminated, which will lead to the need to press the buttons with great effort.
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Use a cotton swab slightly soaked in alcohol to clean the graphite tracks on the board - this often brings back "life" to poorly functioning buttons.
Disassembly of Bluetooth-based Mi Remote
Xiaomi’s flagship TVs and Mi Box S consoles come with more ergonomic voice-enabled remotes, often with no obvious way to open, leaving many users baffled, and in such devices, the battery compartment may be hidden under a decorative lining or require screws to be unscrewed.
Carefully look at the bottom of the device. If you don't see any obvious screws, try to gently turn the bottom third of the body counterclockwise. In some versions of the Mi Remote, it's the rotary mechanism that locks the battery compartment. If the body is monolithic, most likely the screws are hidden under a serial number sticker or under rubber stops.
The process of opening monolithic buildings requires more care:
- 🔍 Remove all visible stickers and check the space underneath for screws.
- 🔍 Use a thin mediator to walk along the perimeter of the junction of the halves of the body.
- 🔍 Move slowly, snapping plastic latches in a circle so as not to break them.
Inside, you'll find a compact board and batteries, and often these models use non-standard-sized batteries or they're vertically positioned, and when you build them, make sure that the microphone plume (if any) isn't pressed or damaged, or the voice search function will stop working properly.
⚠️ Attention: Plastic of old remotes becomes fragile, so when disassembling devices that are more 3-4 years, heat the body with a hair dryer until 40-50 degrees.
Button problems and their solution
One of the most common reasons for turning to disassemble the remote is that individual buttons fail or you need to double-press to act, and that's because of dust, moisture, or the natural wear of the graphite layer on the rubber membrane, and once you take it apart, you can visually assess the status of the contacts.
If the rubber is intact, but the signal is not good, you can use the traditional method of restoring conductivity, to do this, cleaned surface rubber pencil wiped soft pencil (graphite) or use a special conductive varnish, but the complete replacement of the rubber membrane with a new one is a more reliable and durable solution if you can find a compatible donor.
The table below will help diagnose the problem by external signs:
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| All buttons don't work. | Batteries are down or contacts are oxidized | Replacement of food, cleaning with alcohol |
| The buttons go off once in a while. | Pollution of the graphite layer | Purification or restoration of conductivity |
| The remote blinks, but it doesn't drive. | Bluetooth pairing failure | Re-binding through Settings |
| Sticking a button | Sticky fluid intrusion | Disassembly and thorough washing |
When assembling after cleaning the buttons, make sure that the rubber pad is straight in its seats. A millimeter skew can cause the buttons to press with different force or not press at all. Check the operation of each key before you finally snap the case.
What to do if the remote is filled with liquid
Getting water, coffee or other liquids onto the remote is an emergency that requires an immediate response. If you spill liquid onto the device, the first thing you need to do is immediately remove the batteries, which will break the electrical circuit and minimize the risk of short circuits that can irreversibly damage the chip.
After the batteries are removed, the device must be disassembled as quickly as possible according to the instructions described above. The board should be gently washed with distilled water (if the contamination was sweet) or high concentration isopropyl alcohol. Alcohol is good in that it displaces water and evaporates quickly, leaving no trace of corrosion.
Can I dry the remote with a hairdryer?
Visually inspect the board for white plaque, which is a corrosion trail, and it needs to be carefully removed with a soft brush dipped in alcohol, and if the oxidation process has gone far and the tracks are damaged, you may need to repair the chains with a thin solder, which requires skill with a soldering iron.
You can only assemble and test the device after all the components have been completely dryed out, and even the minimum amount of moisture under the buttons will cause false positives or re-circuiting, and patience is the key to saving electronics.
Assembly and performance check
The final step is to assemble the device. When you connect the halves of the body, don't put too much effort into it. If the plastic doesn't fit easily, it means that there's a piece that's not clicked or a plume is in the way. Walk around the perimeter, pressing your fingers evenly until the characteristic snaps of the latches.
After installing the batteries, check the remote. Bluetooth models may require re-pairing, usually by pressing the Back and Home buttons (or Menu) 10-15 cm from the TV at the same time, and the screen should report a successful connection.
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Proper assembly guarantees the tightness of the case and protection from dust, which prolongs the life of the device for years.
If the remote is acting strangely after assembly, such as spontaneously changing channels, check if the rubber membrane is clamped, also make sure there are no foreign objects or tools left inside, and cleanliness and accuracy are the main allies in repairing small electronics.