NFC Xiaomi Redmi: A Complete Guide to Setup and Application

Technology NFC (Near Field Communication has long ceased to be exotic – today it is built into most Xiaomi Redmi smartphones, ranging from the budget Redmi Note 10 and ending with flagships like Redmi. K60 But many users still do not know how to unleash the full potential of this module. NFC Not only does it allow you to pay for your phone, but it also automates routine tasks, exchange contacts, manage smart devices – all without an Internet connection.

In this article, we will discuss all the ways of using NFC Redmi: from basic customization to advanced scenarios with smart tags and integration with Mi Home. MIUI, which are not documented in the official instructions, but greatly enhance the capabilities of the technology. NFC (Check the characteristics of the model, you can turn it into a universal tool for everyday tasks.

How to check if there is NFC in your Redmi

Not all Xiaomi Redmi models are equipped with a chip NFC — It depends on the region of sales and modifications. For example, the Redmi Note 12 for the global market has a NFC, The Indian version is not. Here's how to determine if there's a module:

• 🔍 Method 1: See the specifications on the official Xiaomi website (select your model and region). NFC: Yes.
• 📱 Method 2: Open the Settings → Connections and sharing → NFC. If there is no point, there is no module.
• 🛠️ Method 3: Use the application AIDA64 (partition → Sensors. There's a string. NFC Controller confirms support.

If NFC Not available, but very necessary - consider the Redmi Note 13 Pro+, POCO F5 Pro or Redmi K70, where the chip is installed by default. For older devices (for example, Redmi 9) there are external devices. NFC-They are not, but they require constant food. USB-C.

⚠️ Note: Some firmware (for example, custom LineageOS) NFC It can be disabled at the kernel level. Check this in the developer menu (Settings). → The phone. → Version. MIUI — tap 7 times).

Initial setup NFC on the Redmi

Before the first use NFC Xiaomi Redmi needs to perform a basic setup. the process takes no more than 2 minutes:

1. Go to Settings → Connections and Sharing → NFC.
2. Activate the NFC slider (should turn blue).
3. Turn on the Android Beam option (required for file transfer).
4. Select mode: Read only to scan tags, read/write for full-time work, emulation card for contactless payments.

After activation, the N icon will appear in the top notification bar, which means that the module is ready to go. If the icon is not available, try restarting the phone or updating the firmware (in older versions). MIUI There were bugs with status display).

Is NFC enabled in the settings?

Does the “N” icon appear in the notification panel?

The phone is responding to the approach NFC-tag (vibration/sound)?

Testing application (e.g, NFC Tools detects chip?

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To check the health of the application download from Google Play NFC Tools, scan any bank card or transport ticket, and if it's read, it's set up correctly.

Contactless payments through NFC: Google Pay and Mi Pay

Principal application NFC Redmi is a phone service, which is Google Pay (formerly Android Pay) or Mi Pay (not available in all regions.

Setting up Google Pay

The service works with Visa, Mastercard and Mir cards (for Russia).

1. Download Google Pay from the Play Market.
2. Add a bank card through Add a card → scanner or handheld.
3. Confirm the binding via SMS or push notification from the bank.
4. Set up a screen lock (PIN, without blocking Google Pay will not work!

Mi Pay settings (for China and some regions)

Mi Pay supports local payment systems (e.g. UnionPay in China) to activate:

1. Open the Settings. → Annexes → Mi Pay.
2. Create a payment password (other than unlocking your phone!).
3. Add the card through Bank cards → Add.
4. Confirm the link through the bank (a visit to the office may be required).

For payment in the store:

1. Unlock the phone.
2. Hold the top of the Redmi (where the antenna is located) NFC) terminally.
3. Confirm the payment with a fingerprint or PIN-code.

⚠️ Note: If payments do not pass, check: Is not the Flight mode turned on (disables) NFC). Are there any energy saving profiles installed (can block the background work of Google Pay) or is the antenna damaged? NFC (frequent problem after Redmi falls with metal body).

Transfer data between devices via NFC

With help. NFC You can quickly share files, contacts, or links between two smartphones. This uses Android Beam technology (replaced with Fast Transfer in new versions of Android:

Transfer of contacts

1. Open the contact you want to send.
2. Bring the back of Redmi to another phone (distance) < 5cm).
3. Wait for the sound signal and vibration.
4. On the screen will appear a notification Touch to transmit - confirm the action.

Transfer of photos or links

The algorithm is similar, but there are nuances:

• 📷 For photos: Open the image in the Gallery, then bring the phone up.
• 🔗 For links: Open a page in Chrome, click ⋮ → Share. → Android Beam.

Limitations:

• Maximum file size — ~10MB (for large files, use Mi Share or Bluetooth).
• Transfer speeds up to 424 Kbps (slower than Wi-Fi Direct).
• Both phones should be supported NFC and have Android Beam enabled.

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If file transfers are interrupted, try turning off the energy-saving mode on both devices, and make sure there are no metal objects between the phones (they shield the signal).

Smart. NFC-Labels: Automation of tasks

One of the most useful functions NFC — The ability to program tags (stickers or key fobs) to automate routine activities, such as touching a phone tag on a bedside table might include a tag in the car and running Google Maps with a route home.

The work will require:

• 🏷️ NFC-tags (you can buy on AliExpress or in electronics stores, are worth it) ~50₽ piecewise).
• 📱 Application for command recording: NFC Tools, Trigger or Automate.

Examples of labelling use

Step-by-step instructions for recording the label

1. Open NFC Tools and select Write → Add a record.
2. Select the type of action (such as Launching an application or Wi-Fi).
3. Set up the parameters (for example, specify the SSID and a Wi-Fi password).
4. Put the tag on the phone and wait for the recording to be completed.

Advanced Screenplay: With the help of Tasker + NFC Plugin can create chains of action, for example, a label on a desktop can be used to create chains of action:

• 📵 Switch the phone to Work mode (disable notifications from social networks).
• 📊 Open Google Docs with the latest document.
• ☕ Start the timer for 25 minutes (the Pomodoro technique).

NFC and Smart Home: Xiaomi Device Management

If you have Xiaomi smart devices (Yeelight lamps, Aqara sockets, robot vacuum cleaners), NFC-Labels can be a convenient way to control without voice commands or running an application:

• 💡 Turn on the lights in the hallway.
• 🔒 Unlock the Mi Smart Door Lock.
• 🌡️ Set a comfortable temperature on the air conditioner Mi Air Conditioner.

Setup via Mi Home

1. Open Mi Home and go to Profile → Automation → NFC.
2. Click Add the label and bring a clean one. NFC-phone-mark.
3. Select devices and actions (e.g., Turn on the lamp) → Set brightness 70%).
4. Save the script and test the label.

Important: The job requires that the phone and smart devices be on the same Wi-Fi network. If the tag doesn't work, check:

• Internet connection (cloud commands require networking)
• Permits for Mi Home (access to location and NFC).
• Updates to the firmware of devices (in older versions there could be bugs from the NFC-automation).

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NFC-Smart home tags work even without the internet if devices support local control (e.g. Yeelight lamps in mode). LAN).

Data security and protection when using NFC

Despite the convenience, NFC — It's a wireless technology, and therefore potentially vulnerable to attack:

Possible threats

• 🕵️ Sniffing: An attacker can intercept data between the phone and a tag (for example, when paying in a public place).
• 💳 Cloning cards: Fraudsters can copy bank card details if it is tied to NFC without PIN-code.
• 📱 Unauthorized access: If the phone is unlocked, the attacker can read the data from the phone. NFC-tagging in your wallet.

How to protect yourself

Follow these rules:

• 🔒 Always lock the screen after use NFC (home).
• 🛡️ Turn it off. NFC, When not used (in settings or through the notification panel).
• 💳 Set a limit on payments without confirmation (for example, 1000)₽). Enable the request PIN-code for each transaction.
• 📵 Use the covers with RFID-lock (shields the signal when the phone is in your pocket).

Vulnerability testing:

Download the app NFC Security Test and scan your cards, which will show you whether you can copy your credit card or transport card, and if the risk is high, contact your bank to change your card to a more secure one. CVV or support for Tokenization).

⚠️ Note: Redmi with root rights or custom firmware (LineageOS, Pixel Experience) NFC This may be due to the lack of proprietary drivers from Qualcomm or NXP. If you have problems, go back to the official MIUI.

Solving problems with NFC Xiaomi Redmi

If NFC Your Redmi is not working or is not working properly, use this diagnostic manual:

Typical faults and methods of correction

Hardware malfunctions

If NFC stopped working after falling or getting moisture, the following breakdowns are possible:

• 🔧 Antenna damage NFC (It is located under the back cover, next to the camera).
• 🔌 Disconnection of the plume (frequent problem after disassembling the phone).
• 💧 Corrosion of contacts (if the phone was in contact with water).

Diagnosis:

1. Check if it's being determined NFC into AIDA64 (If not, it's a hardware problem.
2. Connect your phone to your PC and execute the command: adb shell dumpsys nfc If the answer is Service not found – the controller is faulty NFC.

Repair of antennas NFC It costs 1,000 to 3,000.₽ If you have a warranty, you can go to Mi Service Center, and sometimes you can replace the module for free.

FAQ: Frequent questions about NFC on Xiaomi Redmi