NFC in Xiaomi Mi 9C: A Complete Guide to Setup and Use

Xiaomi Mi 9C is a compact yet functional smartphone that supports NFC (Near Field Communication) technology, which, despite its modest size, can replace a bank card, exchange data with other devices and manage smart appliances. However, many owners do not use NFC to the full extent - either unaware of its capabilities or face difficulties in setting up.

In this article, we will look at all the scenarios for using NFC on the Xiaomi Mi 9C, from contactless payments to automating tasks with tags. You will learn how to turn on the module, link cards, eliminate typical errors and even save battery power when using the technology actively. And if you are just planning to buy, we will assess how well the Mi 9C is suitable for everyday tasks with NFC compared to new Xiaomi models.

The material is relevant for MIUI 14 and Android 12+ (the latest available versions for the Mi 9C for 2026).

What is NFC in Xiaomi Mi 9C and why is it necessary?

NFC (from English Near Field Communication) is a short-range wireless communication technology (up to 10 cm), which operates at 13.56 MHz. In the Xiaomi Mi 9C, the NFC module is built into the upper part of the body (near the main camera) and supports three main modes:

• 💳 Card emulation – a smartphone replaces a bank card, travel card or key card (for example, for the office) Works with Google Pay, Mi Pay and other payment systems.
• 📱 Data sharing – transferring contacts, links or files between devices (similar to Android Beam, but faster).
• 🏠 Reading/writing tags – interacting with smart devices (lamps, locks) or performing automated actions (for example, turning on Wi-Fi when touching a label on the desktop).

The Mi 9C differs from Xiaomi flagships (such as the Mi 11 or 13 Pro) in the lack of UWB support, which provides more accurate positioning. However, for everyday tasks (pay in the store, transfer photos), the NFC capabilities in the Mi 9C are quite enough.

Important: The NFC module in this model does not work when the screen is off (unlike some flagships that support "Always On NFC"), which means that you will have to unlock the device first to pay or read the tag.

How to turn on NFC on Xiaomi Mi 9C: step-by-step instructions

By default, the NFC on the Mi 9C is turned off to save battery power.

1. Open Settings (the gear icon on the main screen).
2. Go to the Connection and Sharing section.
3. Slip on NFC.
4. Move the NFC slider to the right (status will change to Included).
5. Optional: Enable Android Beam (for data sharing) and HCE-Services (for banking applications).

Once activated, the status bar will have an N icon, which means the module is ready to go. If the icon is not available, check if it is hidden in the notification panel settings (Settings → Notification Panel → Status icons).

Is the module enabled in the settings?

Does the “N” icon appear in the status bar?

Is the smartphone close to the reader (no further than 5 cm)?

Is the screen unlocked before use?

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The Mi 9C also has a quick NFC on through the control panel.

1. Swipe down from the top edge of the screen to open the notification bar.
2. Find the NFC icon (if it isn’t, click Edit and add it manually).
3. Slip the icon to turn the module on/off.

⚠️ Attention: If NFC It doesn't turn on, check if you have custom firmware or root rights on the device. MIUI disable the module hardware support.

Configure contactless payments via NFC

The main application of NFC in the Mi 9C is to pay for purchases with a smartphone, which requires linking a bank card to one of the payment services, and let's consider two popular options: Google Pay and Mi Pay.

Method 1: Google Pay (recommended for international maps)

1. Download Google Pay from the Play Market (unless the app is installed by default).
2. Open the app and log in to your Google account.
3. Click Add Card → Credit or debit card.
4. Scan the map with the camera or enter the data manually.
5. Confirm the addition via SMS or banking application.
6. After successful binding, the card will appear on the main screen of Google Pay.

Method 2: Mi Pay (optimized for Chinese banks)

Mi Pay is Xiaomi’s proprietary service that supports UnionPay, Mastercard and Visa cards, but not all features are available to Russian users.

1. Open the Mi Pay app (pre-installed in MIUI).
2. Select Add a card and follow the instructions.
3. A Chinese phone number may be required to verify the phone, in which case use Google Pay.

For payment in the store:

• 📱 Unlock the Mi. 9C (PIN, graphical key).
• 💳 Bring the top of the smartphone to the terminal (distance not more than 5 cm).
• ✅ Wait for the sound signal or vibration – the payment was successful.

⚠️ Warning: If the terminal does not accept payment from your smartphone, try disabling Quick Unlock in the security settings (PIN password).

NFC Data Transfer: How to Send Files and Contacts

With NFC on Xiaomi Mi 9C, you can quickly share small files (photos, contacts, links) with other Android devices.

Instructions for transmission:

1. Enable NFC on both devices (on the Mi 9C and on the second smartphone).
2. Activate Android Beam in NFC settings.
3. Open the file you want to send (such as a photo in a gallery).
4. Hold the Mi 9C back to the other smartphone (screens must be unlocked).
5. Wait for the beep - a notification will appear on the screen Touch to transmit.
6. Slip on the notification to confirm the shipment.

Limitations:

• 📄 The maximum file size is 1 GB (in practice, transferring more than 100 MB can take a few minutes).
• 🔋 Transfer consumes more power than Bluetooth, so for larger files it is better to use Xiaomi Share or Wi-Fi Direct.
• 📱 Both devices must support Android Beam (iPhone does not have this feature).

For the transmission of contacts:

1. Open the Contacts app and select the contact you want.
2. Press Share. → Android Beam.
3. Bring your smartphones to each other.

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If file transfer is interrupted, try turning off the power saving mode in the battery settings. NFC is sensitive to background restrictions.

Using NFC for Smart Home and Automation

Xiaomi Mi 9C It can interact with smart devices through NFC-Labels are little stickers that are programmed to do certain things:

• 💡 Turn on/off lights when touching the mark on the wall.
• 🔊 Run the playlist on the column when bringing the smartphone.
• 🚗 Open the garage door (if a compatible controller is installed).

To work with labels will need:

1. Buy NFC-tags (e.g., Xiaomi) NFC Tag or universal NTAG213/215/216).
2. Install a programming application (Trigger or NFC Tools are recommended).
3. Write down the desired action (for example, turning on Wi-Fi or launching an application).

Example of setting up a tag to enable Do Not Disturb mode:

1. Open NFC Tools and select Write → Add a record.
2. Select the recording type Device settings → Do not disturb mode.
3. Bring your smartphone to the record label.
4. Place the mark in a convenient place (for example, on the bedside table).

The Mi 9C also features Xiaomi smart locks (such as the Mi Smart Door Lock) that open with the touch of the smartphone.

1. Install the lock and the Mi Home app.
2. Add the lock to the app through Add the device.
3. In the lock settings, select NFC-key and follow the instructions.

⚠️ Attention: Some NFC-The tags require power from the smartphone to trigger. If the tag doesn't respond, check it's compatible with Mi. 9C (should support the standard ISO 14443 Type A).

Solving NFC Problems with Xiaomi Mi 9C

If the NFC on the Mi 9C is not working or is not working properly, check the following points:

If resetting the settings didn’t help, perform the NFC calibration:

1. Go to Settings. → The phone.
2. Tap 7 times on the MIUI version to activate Developer Mode.
3. Back to Settings → Additionally. → For developers.
4. Find the NFC Calibration and follow the instructions on the screen.

If the problem persists, check the integrity of the NFC antenna. On the Mi 9C, it is located under the top cover next to the camera. If you fall or repair, the cover may have shifted, which leads to a bad signal.

Comparison of NFC in Xiaomi Mi 9C with other models

Xiaomi Mi 9C fitted NFC-chip NXP PN54T, Provides standard data transfer speed (up to) 424 For comparison, in the flagships of Xiaomi 13/14 used NXP SN100T supportive UWB and improved energy efficiency.

The advantages of NFC in the Mi 9C:

• ✅ Full compatibility with Google Pay and banking terminals.
• ✅ Low power consumption (compared to Bluetooth or Wi-Fi).
• ✅ Support for all standard NFC-tags (Type) 1-4).

Disadvantages:

• ❌ No support. UWB positioning.
• ❌ It doesn’t work when the screen is off (unlike Samsung Pay).
• ❌ Limited range (up to 5 cm, while some competitors have up to 10 cm).

If you need advanced features (like digital keys for cars or contactless charging over NFC), consider newer models like the Xiaomi 13T or Mix Fold 3.

FAQ: Frequent questions about NFC on Xiaomi Mi 9C