When your favorite Smart TV stops responding to commands, it always takes you by surprise, especially while watching a movie.The remote control for Xiaomi and Mi Box TVs is not just a set of buttons, but a complex electronic device that works via Bluetooth or an infrared port. Before panicking and looking for a new accessory, it is worth conducting a thorough diagnosis, since in most cases the problem is solved quickly.
Failure is most often caused by a dead battery or a software pairing failure. However, if simple methods do not help, a deeper intervention in the hardware of the device may be necessary. In this article, we will discuss all the stages of recovery, from the banal replacement of batteries to soldering contacts.
Don't bring your device to a service center if you have minimal tool handling skills, self-repairing will save you time and money, and you'll have confidence in your equipment, and let's look at the root causes of malfunctions and how to fix them.
Primary Diagnostics and Replacement of Elements
The first step should always be to check the power source. Even if the display on the remote lights up, this does not guarantee sufficient voltage for a stable operation of the Bluetooth module. Unlike conventional IR remotes, Xiaomi smart remotes consume more energy when trying to connect.
Use only high-quality batteries from proven brands. Cheap analogues can show normal voltage without load, but instantly "land" when trying to transmit a signal. It is also important to check the contacts inside the compartment: oxidation or shifting of springs often interrupts the power chain.
β οΈ Warning: When installing new batteries, strictly observe polarity. Back-on can short-circuit and irreversible damage to the controller's internal board.
If the replacement of the batteries is not working, try to remove them for 10-15 minutes, which will allow you to reset the residual charge from the capacitors and restart the logic of the controller, after installing fresh batteries, the device can start working correctly.
Program reset and reconjugation
A common cause of problems is the loss of communication between the remote and the TV, in which case you need to initiate the reconnection process. For standard Xiaomi Bluetooth remotes, there is a special key combination that puts the device in search mode.
Press and hold the Back and Home buttons at the same time (house icon). Hold them for about 5-10 seconds, pointing the remote to the TV. The screen should show a message about finding a new device. If this does not happen, perhaps the problem lies deeper.
βοΈ Checking for pairing
Sometimes you need to reset your TV completely if it has forgotten the remote. Go to the settings menu via your smartphone (using the Mi Remote app or analogue) and remove the old devices from the Bluetooth list.
- π Check the charge of batteries with a multimeter or replace them with a new one.
- π‘ Make sure that Bluetooth on your TV is on and sees other devices.
- π Reboot the TV by completely disconnecting it from the socket for 1 minute.
- π± Try to control TV through the application on your smartphone to prevent the breakdown of the TV itself.
Mechanical cleaning and restoration of current-conducting tracks
If the remote only responds to strong presses or some buttons stop working, the problem may be contamination of the contacts, and over time, dust, grease and moisture enter the body, forming an insulating layer between the rubber button and the circuit board.
To clean, gently open the remote body by unscrewing the screws or snapping the latches. Remove the rubber pad and wipe the graphite stains on it and the contacts on the board with a cotton swab dipped in alcohol. Use only isopropyl alcohol or a special contact cleaner.
How to restore the worn tracks?
Once cleaned, assemble the device and check it, and if the buttons don't work, you may have completely worn off the graphite layer, which can be done by using conductive glue or replacing the rubber pad with a new one that you can order online.
Hardware repair: IR port and quartz resonator
More complex breakdowns require a soldering iron and a multimeter. Often, an infrared emitter (IR port) or quartz resonator fails, especially if the remote is falling. IR screening is possible with the smartphone camera: point the remote to the lens and press a button β the screen should be visible violet glow.
If there is no glow and the batteries are new, the IR diode may have passed or burned out, and if it is replaced, it requires careful soldering, and if it has cracks or chips, it should be replaced with a similar one with the same frequency.
| Component | Symptom of malfunction | Method of verification | Decision |
|---|---|---|---|
| IR-diode | It's not burning in the cell phone. | Visually, through the camera | Seal the new diode |
| quartz | The remote doesn't show any signs of life. | Scrap inspection | Replacement of resonator |
| Contact the charges | It only works when you're bending. | Visual examination | Sweating contacts |
| Battery bay | Contact disappears when knocking | The movement of springs | Cleaning or flogging |
π‘
Use a magnifier or macro shot on your phone when inspecting the board. Microcracks in soldering are often not visible to the naked eye, but cause intermittent failure.
Using a Smartphone as an Alternative
While youβre looking for parts to repair or waiting for a new remote, you can control the TV via your smartphone. Most modern Xiaomi and Redmi phones have an integrated IR port, allowing them to work as universal remotes.
For models without an IR port, use the Mi Remote app or third-party counterparts that work over Wi-Fi. The TV and phone must be on the same network. This is a temporary solution, but it is fully functional and even allows you to enter text from the keyboard of the smartphone, which is more convenient.
Setting up the IR remote on your smartphone takes a couple of minutes: select the brand of the TV and test the buttons of the proposed profiles. For Wi-Fi control, just find the device on the local network and confirm the pairing on the TV screen.
When professional repair or replacement is required
There are situations where self-repair is not advisable: If the board has strong clamps, burned tracks or damaged controller chip, it is easier to buy a new device. The cost of original and compatible Xiaomi remotes is relatively low.
You should also consider buying a universal Bluetooth remote with voice input if you lose your current one. They often have advanced functionality and ergonomics. However, make sure you are compatible with your version of Android TV or PatchWall before buying.
β οΈ Note: When buying a cheap Chinese equivalent, pay attention to the type of connection. Some copies only work through an infrared port and are devoid of voice control and buttons. Netflix/YouTube.
If you decide that repair is not possible, dispose of the old remote correctly by taking it to the electronics reception point. Lithium cells or batteries inside can harm the environment if you get to a landfill.
Frequently Asked Questions (FAQ)
Why does Xiaomiβs remote flash orange?
Can I use the Mi Box remote with a Xiaomi TV?
What if the remote works only near the TV?
Where can I find the reset button on the remote?
π‘
In 80 percent of cases, the problem is solved by replacing batteries with high-quality analogs or reconnecting Bluetooth.