What is NFC on Xiaomi Phone and How to Use It

Modern smartphones are no longer just devices for calls and the Internet, becoming universal tools for everyday life. Among the many technical characteristics specified in the specifications of the device, you can often find the acronym NFC, which raises questions for beginners. Near Field Communication is a short-range wireless technology that allows communication between devices.

Xiaomi device owners are often interested in the capabilities of this module, as it provides access to contactless payment and fast synchronization of gadgets. However, the functionality of the technology goes far beyond simple in-store payment. Understanding what NFC means in the context of the Xiaomi ecosystem will allow you to use your smartphone at full capacity, turning it into a digital key, wallet and smart home control.

In this article, we will discuss in detail the principles of the module, how it is activated on different versions of the MIUI and HyperOS shell, and also consider practical use cases.

Technological basis of the module in Xiaomi smartphones

NFC technology relies on high-frequency radio signals that transmit information over a very short distance, usually no more than 10 centimeters. This range limitation is not a disadvantage, but a key security element that prevents interception by attackers at a distance. In Xiaomi smartphones, a special antenna is responsible for transmitting the signal, which is most often built into the upper part of the housing or located next to the main camera module.

The module can operate in three main modes: card emulation, tag reading, and peer-to-peer data exchange. Card emulation mode allows the phone to pretend to be a plastic bank card or a travel ticket, which is used for payment. Reading mode allows the smartphone to read information from passive tags that do not require its own power source.

⚠️ Attention: Antenna NFC Xiaomi can be positioned differently in different models. If the tag is not read the first time, try moving the phone slowly over the surface of the tag to find the maximum signal point.

The power consumption of the module is extremely low, so its constant activation has little or no effect on the battery life of the device. Unlike Bluetooth, the connection is installed almost instantly, without the need for long pairing procedures, which makes the technology ideal for scenarios where reaction speed is important, for example, when passing through the subway turnstile or paying for a purchase at the checkout.

How to check for and enable NFC on MIUI and HyperOS

Before you start setting up payments, you need to make sure that your Xiaomi smartphone is equipped with the appropriate module. Not all budget models have an integrated chip, so checking for a feature is the first step, you can do this through the search bar in the settings or by visually inspecting the specifications of a particular model on the official website.

To activate the function in modern shells from Xiaomi provides a convenient algorithm of actions. Usually the path is as follows: you need to open the Settings application, select the Connection and Sharing section (or Additional Features in older versions of MIUI), and find the NFC. The switch should be moved to the active position.

There's also a faster way to turn on through the control panel. Swipe from top to bottom across the screen to open the notification curtain, and find the icon with the letters NFC. If you don't see it on the first page, tap on a pencil or edit button to add a shortcut to a prominent place. This will allow the module to be turned on and off with one touch, which is convenient for saving charge.

It is important to note that in some regions or on global versions of firmware, the menu layout may vary slightly. If standard search does not yield results, use the search bar at the top of the settings menu, typing in the "NFC" query. The system will automatically redirect you to the desired section regardless of the shell version.

Contactless payment: opportunities and restrictions in Russia

For a long time, the main function of NFC for most users was contactless payment through Google Pay or Mi Pay, the principle of the work was to tokenize card data: the phone transmitted to the terminal not a real card number, but a one-time digital code, which ensured a high level of security of transactions.

But the current reality has changed dramatically for Russian users: Google Pay has stopped supporting Russian cards, and standard phone payments through terminals have become impossible.Technically, the NFC module continues to work, but banking applications can no longer use it to emulate Visa and Mastercard cards.

• 📉 Google Pay service does not work with cards of Russian banks since 2022.
• 💳 Mi Pay service also suspended card service for most major Russian banks.
• 📱 The alternative is becoming QR-SBP codes and applications of specific banks that do not use NFC pay.

Despite the limitations of payments, the NFC technology in Xiaomi smartphones remains extremely useful for other tasks.You can still use it to quickly pair with headphones, speakers, fitness bracelets Mi Band and smart watches.

Use of the NFC-Tagged with Xiaomi Automation

One of the most underrated features is the ability to program smartphone actions when touching special tags. NFC-Labels are tiny chips with antennas that you can buy online and paste anywhere: at home, in your car or in your office. Xiaomi's smartphone reads a command from a tag and executes a predetermined script.

You can use embedded system tools or third-party applications like Tasker or MacroDroid to create these scenarios, and imagine you go home, you put your phone on a special stand with a tag, and it automatically turns on Wi-Fi, puts on a silent mode, and launches your favorite playlist, just one of many uses.

Examples of useful scenarios for Xiaomi owners:

• 🚗 In the car: Torpedo tags when touched include Bluetooth, navigation and Do Not Disturb mode".
• 🌙 In the bedroom: a tag on the bedside table wakes up the phone, turns off the mobile network and sets an alarm clock.
• 🏢 At work: A tag on the table puts the phone in quiet mode and launches a note-taking app.

Tagging doesn't require programming skills. In most applications, you just pick an action from a list or create a chain of actions. Once you write a command, the tag becomes a passive trigger that works even without the Internet, because all the logic is done by your phone's processor.

Fast pairing with accessories and a smart home

Xiaomi's ecosystem has seamlessly integrated NFC into the peripheral connection process, especially for TWS headphones, portable speakers, and wearables. Instead of looking for a device on the Bluetooth list, you just need to bring your phone to the accessory.

Many new Xiaomi and Redmi headphones support Fast Pair over NFC. When the phone screen is unlocked and Bluetooth is turned on, touching the headphones causes a pop-up with a suggestion of pairing.This speeds up the setup process and reduces the likelihood of error when connecting to someone else's device in a public place.

It's also used in smart home systems, and some devices, like lights and sockets, have built-in lights. NFC-This eliminates the user from having to enter complex passwords or scan. QR-codes in poor lighting conditions.

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For a quick connection to someone else’s NFC-enabled Xiaomi Wi-Fi router, simply hold the unlocked phone to the top of the router. You don’t need to enter the password, the connection will be set up automatically.

File transfer and interaction with other devices

While NFC data transfer speeds are lower than those over Bluetooth or Wi-Fi Direct, this method is ideal for “handshakes” – the initial exchange of contact information. Xiaomi smartphones implement the Mi Share (formerly Mi Drop) feature, which uses NFC to instantly detect the recipient device.

When you want to transmit a photo or document, you don't have to search the device in the list and enter the confirmation codes, just hold the phones back to each other, the NFC will transmit the coordinates to establish a high-speed link, and the file will fly at maximum speed Wi-Fi.

This feature is particularly handy when exchanging contacts. Instead of dictating a phone number or saving it from a messenger, you can simply tap a friend's phone. Android Beam (or its modern counterparts in MIUI) will offer to send a business card of contact. It is fast, hygienic and does not require the installation of additional applications.

⚠️ Note: For large data transfers, make sure that both devices are enabled with Bluetooth and Wi-Fi. NFC This is only a trigger, the transfer of files is a different protocol.

In addition, some applications use NFC to quickly log in to accounts or confirm actions, for example, banking applications can use a chip to log in to a bank’s web version, and enterprise systems can read employee passes if the phone acts as a digital ID card.

Security and data protection issues

Security is a priority for all wireless technologies. The NFC module in Xiaomi phones is designed to protect user data. As mentioned earlier, the short range makes signal interception a difficult task requiring physical proximity of an attacker.

When paying for or transferring sensitive data, the system requests confirmation of the action: fingerprint unlock, face or face. PIN-Without this confirmation, the chip won't transfer payment tokens, which means that even if you lose your phone, you can't use it to pay in the store without removing the lock on the screen.

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NFC-Xiaomi module does not transmit data without active user confirmation (biometry or code) in the case of financial transactions, which minimizes the risk of theft of funds to a minimum.

However, there is a risk of tagging, and attackers may place tags in public places that, when read, redirect the user to a phishing site. Always pay attention to the notification that appears on the screen before clicking on a link or launching an application.

For maximum protection, it is recommended:

• 🔒 Don't leave. NFC It is always on if you are not using it right now.
• 📲 Do not follow links from unknowns NFC-tagging.
• 🛡️ Use antivirus solutions and monitor security updates Google Play Protect.