Infrared (IR) port in Xiaomi smartphones is one of the features that set the brand apart from the competition. Despite the proliferation of smart devices with Wi-Fi and Bluetooth, IR port remains relevant for managing household appliances: TVs, air conditioners, audio systems and even some lamps. In this article, we will discuss how to use the IR port correctly on Redmi, POCO and other Xiaomi models, what applications are needed for this, and how to solve typical problems.
It is important to understand that not all Xiaomi smartphones are equipped with an IR port. For example, the flagship Mi 11 and newer models often lack this feature in theft for the thinness of the case, while budget and mid-budget devices (Redmi Note 12, POCO X5) retain it. Before buying or setting up, check the specifications of your model - the IR port is usually located at the top of the case next to the speaker or front camera.
What Xiaomi models support the IR port
The list of devices with an IR port changes every year, but there are several series where this feature is most common:
- π± Redmi Note Series: from Redmi Note 4 to Redmi Note 12 Pro+ (exceptions to some global versions).
- π± Series POCO: POCO X3, POCO X4 Pro, POCO F3 (not POCO F5).
- π± Series Mi: Mi: Mi 9T, Mi 10T, Mi 11 Lite (in flagships after 2021, IR port is rare).
- π± Budget models: Redmi 9A, Redmi 10, Redmi A2.
To find out if there is an IR port in your smartphone, check:
- External inspection: Look for a small black window at the top of the case.
- Specifications on the official Xiaomi website or in services like GSMArena.
- The presence of the Mi Remote application in the firmware (if it is not there, there is probably no IR port either).
β οΈ Note: Some models for the European market (Redmi Note 11 Pro) 5G EU) You may lose your IR port due to differences in hardware revisions. Always check for specific modifications.
Installation and configuration of the Mi Remote application
The main tool for working with the IR port is the Mi Remote app (also known as IR Blaster), which is pre-installed on most Xiaomi devices, but if it is not available, download from Google Play or AppGallery (for models on HarmonyOS).
After installation, follow the following steps:
- Open Mi Remote and provide all the permissions you request (no camera access is required, despite the name).
- Click Add Device and select a category of equipment (such as TV or Air Conditioning).
- Choose a brand from the list (if yours isnβt, try Universal).
- Direct the smartphoneβs IR port to the tech and follow the on-screen instructions for button testing.
If the app doesnβt find your model, try:
- π Use Manual Code Entering (a list of codes for popular brands is available online).
- π Reboot the smartphone and repeat the setting.
- π₯ Update the database in Mi Remote via Settings β Update the base.
βοΈ Preparation for Mi Remote setup
How to manage equipment through an IR port
Once you have successfully configured Mi Remote, you can control the appliances just like your own remote, but there are a few nuances:
Basic functions:
- πΊ TVs: channel switching, volume control, access to Smart TV-menu.
- βοΈ Air conditioners: setting the temperature, choosing the mode (cooling / heating), timer.
- π΅ Audio systems: on/off, track switching, sound adjustment.
- π‘ Smart lamps (some models): changing color and brightness.
Enhanced opportunities:
- π Macros: recording a sequence of commands (e.g., "turn on TV" + switch over HDMI + launch Netflix").
- π± Home Screen Widget: Add Mi Remote shortcut for quick access.
- π€ Voice control: integration with Google Assistant or Alice (requires additional customization).
The infrared port on Xiaomi works at a distance of up to 8 meters, but for stable operation, keep the smartphone no further than 3-5 meters from the equipment and avoid direct sunlight - they interfere with the signal.
π‘
If the buttons in Mi Remote are running late, try reconnecting the device or selecting a different brand profile in the settings.
Common Problems and Their Solutions
Even with the right setup, users face difficulties, and here are the most common ones and ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| IR port not responding | Hardware malfunction or sensor contamination | Wash the port with an alcohol napkin, check in the service center |
| Not all buttons work. | Incorrectly selected profile of the device | Reconnect the technique by selecting a different brand or universal profile |
| Delay in sending commands | Weak signal or interference | Bring your smartphone closer, eliminate sources of IR interference (for example, incandescent lamps) |
| Mi Remote doesn't see IR port | Port disabled in settings or damaged | Check Settings β Connections β IR port, update the firmware |
If none of these methods worked, try alternative applications:
- π οΈ AnyMote β Supports more brands, but requires manual customization.
- π οΈ ZaZa Remote - a simple interface, suitable for old models of technology.
- π οΈ SURE Universal Remote β works with smart devices via Wi-Fi + ICU.
β οΈ Note: Some alternative applications request suspicious permissions (e.g. access to the Internet) SMS Install them only from official sources and check reviews.
Hidden IR Port Functions on Xiaomi
Few people know, but the IR port on Xiaomi can be used not only for control of equipment.
1. Verification of the authenticity of banknotes
The IR sensor can recognize the security tags on the bills.
- Open the Camera app.
- Switch to IR scanner mode (if available in your model).
- Hover over the banknote β counterfeit bills will not display hidden tags.
Remote camera control
Some SLR and mirrorless cameras (such as Sony Alpha or Canon EOS) support IR control, and applications like DSLR Dashboard can be used to shoot from a smartphone.
3. Testing of DU remotes
If you have a broken remote control, you can check if its IR transmitter is working:
- Open the camera app on your smartphone in video mode.
- Press any button on the remote pointing to the camera.
- If you see a flicker on the screen, the transmitter works (invisible to the eye IR signal is displayed as a purple glow).
How to turn on hidden IR mode in the camera Xiaomi
Security and Restrictions of the IR Port
Despite the convenience, the use of the IR port has several limitations:
- π Lack of encryption: IR signals are transmitted in an open form and can be intercepted using special equipment (for example, an Arduino with an IR receiver).
- πΆ Limited range: maximum 8 meters, and the signal must go in a straight line, without obstacles.
- π Incompatibility with new technology: many modern devices (for example, Samsung) QLED 2023) controlled only over Wi-Fi or Bluetooth.
To minimize the risks:
- Do not use an IR port to manage smart locks or security systems.
- Regularly update your Mi Remote database to avoid vulnerabilities.
- If your smartphone is stolen, remotely disable access to IR-controlled apps through Find My Device.
π‘
The IR port is convenient for managing old appliances, but for smart devices it is better to use Wi-Fi or Bluetooth β they are safer and more functional.
Alternatives to IR port on Xiaomi
If your smartphone is not equipped with an infrared port or you want to expand the control options, consider these options:
1. Wi-Fi and Bluetooth remotes
Apps like Google Home or SmartThings allow you to control your technology over a local network, the main advantage is that you don't need direct vision, and the disadvantage is your dependence on the Internet.
External IR adapters
Devices like the BroadLink RM4 Pro or Xiaomi Mi IR Blaster 2 connect to Wi-Fi and extend control capabilities, and they support up to 50,000 models and work with voice assistants.
3. Universal remotes
If your smartphone's IR port breaks, buy a universal remote (like Logitech Harmony) that's more expensive, but more reliable, and doesn't depend on your phone's charge.
| Method | Pluses | Cons |
|---|---|---|
| IR port on a smartphone | No need for an extra device, always at hand | Limited functionality, dependence on charge |
| Wi-Fi/Bluetooth Management | Works through walls, integration with smart home | Network settings are required, not all devices are supported |
| External IR adapter | Advanced device base, voice control | Additional Costs, Dependence on the Cloud |