The infrared port on Xiaomi Redmi Note smartphones is a hidden but extremely useful feature that allows you to turn your phone into a universal remote control. Despite the popular belief that the infrared port is only in flagship models, many Redmi Note devices (from Redmi Note 3 Pro to Redmi Note 12) are equipped with this module.
In this article, we will not only discuss how to physically turn on the IR port on your Xiaomi Redmi Note, but also how to check its availability, configure the Mi Remote app for managing household appliances, and also solve typical problems – from lack of response to commands to synchronization errors. We pay special attention to hidden settings MIUI, which the manufacturer does not advertise, but which can significantly expand the functionality of your smartphone.
If you’ve ever lost a remote control of your TV or air conditioner, or just want to centralize all your hardware in one device, this is the guide for you. We’ve tested all the steps on the Redmi Note 8 Pro, Redmi Note 10 and Redmi Note 11 Pro+, but the methods apply to other IR port versions as well.
How to check if there is an IR port in your Xiaomi Redmi Note
Before you try to turn on the IR port, make sure it is physically present in your model. Not all Redmi Note smartphones have this module – for example, the Redmi Note 7 and Redmi Note 9T do not have it, whereas the Redmi Note 8 Pro or Redmi Note 10 Pro are equipped with it.
There are three ways to check for an IR port:
- 🔍 External inspection: The IR port is usually located at the top of the smartphone (near the front camera or speaker) and looks like a small black glass or hole on some models (e.g. Redmi Note 11 Pro).+) It can be confused with a light sensor - to distinguish, illuminate with a flashlight: the IR port should not glow.
- 📱 Check through Settings: Go to Settings → The phone. → In the Sensors section, look for the Infrared port or IR Blaster, if it's not there, there's no port.
- 🛠️ Test through the engineering menu: Enter the code ##4636## in the phone app, then go to Phone Information and scroll down. IR Port - Port is present.
If neither method has confirmed the presence of an IR port, chances are your model does not support it, in which case the alternative could be a Bluetooth remote or an external IR transmitter connected via USB-C.
⚠️ Note: Some models (e.g. Redmi Note 9 Pro for the Indian market) have the IR port physically present but disabled at the software level, which requires unlocking the bootloader and firmware custom software – a risky process and lacks warranty.
Step-by-step: how to turn on the IR port on Xiaomi Redmi Note
If your smartphone has an IR port but it doesn't work, it's probably just disabled in the settings, and you can turn it on in two ways: through the standard Mi Remote app, or through the hidden MIUI settings.
Method 1: Enable via Mi Remote (recommended)
- Make sure that the phone has Mi Remote installed (if not, download from Google Play or AppGallery).
- Open the app and allow all the permissions you request (camera, location, etc.).
- Click on the + icon in the upper right corner to add a new device.
- Select a type of equipment (for example, “TV”) and follow the instructions on the screen. If the application suggests turning on the IR port, confirm the action.
Method 2: Manually enable via MIUI settings
If Mi Remote doesn’t suggest turning on the port, do it manually:
- Go to Settings → Connections and Sharing → Infrared Port.
- Activate the switch Enable the IR port.
- Return to Mi Remote and try adding the device again.
On some firmware (e.g. MIUI 13 for the global version), the menu item may be called IR Blaster or hidden in Additional Settings. If you don't find it, search by settings (the magnifying glass icon in the upper right corner).
Install the Mi Remote app|Check permissions for the application|Enable the IR port in the settings|Update the firmware to the latest version-->
Set up Mi Remote for Technique Management
Once you turn on the IR port, you have to configure the Mi Remote app to recognize your technique, and the process seems simple, but there are nuances that can cause errors.
Addition of a new device:
- Open Mi Remote and press + (Add device).
- Select the category of equipment (TV, air conditioning, audio system, etc.).
- Specify a brand from the list (e.g. Samsung, LG, Xiaomi). If your brand is not, choose Another and follow the manual code selection instructions.
- Point your smartphone to the equipment and press the Test. If the device reacted (for example, the TV switched the channel) - save the settings.
Typical problem solving:
- 🔄 Device not responding: Make sure there are no obstacles between the smartphone and the appliances (the IC signal does not pass through walls or furniture.
- 🔋 Battery discharges faster: The IR port consumes minimal energy, but if you notice an increased consumption, turn it off in the settings when not in use.
- 📱 App doesn't see IR port: Reinstall Mi Remote, clear cache or update phone firmware.
If your equipment doesn't respond to commands, try hand-picking the code. To do this, select Manual Input from the add-on menu and test the codes from the list consistently until you find a working one.
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If your TV or air conditioner is over 10 years old, it may not be coded in Mi Remote, in which case try universal codes for similar models or use apps like AnyMote or ZaZa Remote, which support more brands.
Hidden IR port features on Xiaomi Redmi Note
Few people know, but the IR port on Xiaomi can be used not only for the management of equipment.
- 🎮 Game consoles: You can control PlayStation with Mi Remote 3/4 or Xbox One (if they support IR remotes). To do this, add the device as a Player and select the appropriate brand.
- 💡 IR-controlled smart lamps: Some lamp models (e.g. old-style Xiaomi Yeelight) support IR commands to turn on/off or change color.
- 🚗 Car alarms: Some alarms (such as StarLine or Pandora) have IR key fobs, which can be duplicated via a smartphone, if you know the exact protocol of the commands.
For advanced users, it is possible to write their own IR commands through an engineering menu or third-party applications like IR Universal Remote, which allows you to control even rare equipment, whose codes are not available in standard databases.
However, be careful: incorrect commands can cause the device to malfunction (for example, the air conditioner may give an error or the TV will freeze).
How to record a custom IR team?
Why the IR port doesn’t work: diagnostics and solutions
If you've turned on an IR port, but it's not working, the reasons may be both software and hardware, and let's look at some of the most common scenarios and how to fix them.
| Problem. | Possible cause | Decision |
|---|---|---|
| The IR port is not included in the settings | No menu item due to regional firmware | Install a global version MIUI or use ADB-forced-inclusion |
| Mi Remote doesn't see IR port | Conflict with other applications or an outdated version of the software | Clear the app cache, update MIUI or reinstall Mi Remote |
| Techniques do not respond to commands | Incorrectly selected code or obstacle in the path of the signal | Check for direct visibility, try another code or reduce distance |
| The IR port was working, but Suddenly stopped | Failure after upgrade or mechanical damage | Reverse to the previous version of MIUI or contact the service center |
If none of these things worked, there might be a hardware problem with the IR port, and you can check this with a test.
- Install the IR Tester app from Google Play.
- Open it and press Test IR.
- If an error message appears on the screen or the indicator does not burn, the port is faulty.
⚠️ Note: On the Redmi Note 10 and newer models, the IR port may conflict with the NFC-If they're close by, turn them off. NFC in settings before using the IR port.
Alternatives to the IR port: what to do if it is not in the smartphone
If your Xiaomi Redmi Note doesn’t have an IR port, it doesn’t mean you can’t control your smartphone.
- 📶 Wi-Fi/Bluetooth-Remote: Modern TVs and air conditioners often support control via Wi-Fi or Bluetooth. Use official brand apps (e.g., official brand apps, LG ThinQ or Samsung SmartThings).
- 🔌 External IR transmitters: Devices like BroadLink RM4 Pro or Xiaomi Mi IR Blaster 2 connects over Wi-Fi and emulates IR signals, they are inexpensive (from 1000 rubles) and compatible with most equipment.
- 🤖 Voice assistants: If the technology supports Google Assistant or Alice, you can control her voice through a smartphone.
For Xiaomi owners, the best solution will be the Mi IR Blaster 2 – it integrates into the Mi Home ecosystem and allows you to control equipment even via the Internet (for example, turn on the air conditioner on the way home).
If you choose an external transmitter, pay attention to the following parameters:
- Support for your model of equipment (check the compatibility list on the manufacturer's website).
- Cloud management (to enable devices remotely)
- Integration with voice assistants (Alice, Google Assistant, Siri).
IR port on the phone|External IR transmitter (BroadLink, Xiaomi)|Wi-Fi/Bluetooth-remote|Voice Assistant (Alice, Google)|I'm not in control.-->
Security and Restrictions in the Use of an IR Port
Despite the convenience, the use of an IR port has a number of limitations and potential risks that you should be aware of:
- 🔒 Vulnerability to intercept: IR signals can be intercepted using special equipment (e.g., electronics, IR This means that in theory someone can record your commands and play them later (like turning on the TV at night) the risk is minimal, but if you're running a smart lock or alarm, it's better to use Bluetooth or Wi-Fi with encryption.
- 📡 Limited range: IR only works within line of sight (maximum 7-10 meters). If you want to operate from another room, you'll have to use alternative methods.
- 🔄 Conflicts with other sensors: On some Redmi Note models, the IR port may interfere with work NFC If you notice a malfunction, try turning off the port when you don't need it.
To minimize the risks:
- Do not store commands for critical devices (such as alarms or smart locks) in Mi Remote.
- Regularly update the app and firmware of the smartphone – this closes the vulnerabilities.
- If you use an IR port to control your air conditioner or heater, set a password to unlock your phone so that outsiders can’t change the settings.
Important: On Redmi Note 11 and later, the IR port only works with official Xiaomi apps (Mi Remote, Mi Home) by default. Third-party programs (such as AnyMote) may require root rights or not be supported.