What is NFC and why it is needed in Xiaomi smartphones
NFC (Near Field Communication) technology allows data to be exchanged between devices up to 10 cm without an internet connection. In Xiaomi smartphones, this module is used to transfer files, pay for purchases, connect smart devices and even quickly pair with speakers or headphones. The main advantage is speed and simplicity: just attach two devices to each other, and data will be transmitted in seconds.
Unlike Bluetooth or Wi-Fi Direct, NFC doesnβt require pre-setting and works even when mobile internet is off, making it ideal for transferring contacts, links, small files (up to 1 MB) or quick authorization, such as sharing a business card instantly with NFC, opening a web page on another phone, or putting Mi Band on a phone.
It is important to understand that not all Xiaomi models support NFC. the feature is available in flagships (series Xiaomi 13/14, Mi 11), mid-budget smartphones (Redmi Note 12 Pro+, POCO F5) and some devices of the line Redmi K. Before buying, check the model specifications on the official website.
What data can be transferred via NFC to Xiaomi
The list of NFC features is broader than it seems, and in addition to standard file transfer, the technology supports:
- π± Contacts and business cards β sending a phone number, email or full vCard business card.
- π Links and text - quick transfer URL-Address, Wi-Fi password or short message.
- π³ Payments β Payments via Google Pay, Mi Pay or banking apps (requires settings).
- π΅ Media files β photos (up to 1 MB), audio or video of a small size.
- π Device pairing β connecting speakers, Xiaomi headphones or smart gadgets (for example, Mi Smart Band).
- πͺ Smart home - management NFC-tags for automation (lights on, scripts running).
However, there are limitations: the maximum file size transmitted via standard NFC protocol is 1 MB. For large files (video, archives), it is better to use Wi-Fi Direct or Bluetooth, and NFC does not support the transfer of applications (.apk) or system files.
β οΈ Note: When transferring payment data (bank cards, passwords) through NFC Make sure that the receiving device is protected. PIN-Otherwise, attackers can intercept information using special equipment.
How to turn on NFC on Xiaomi smartphone: step-by-step instructions
The NFC module is activated in less than a minute, and the instructions are suitable for all modern Xiaomi models based on MIUI 12/13/14:
- Open Settings β Connection and Sharing.
- Slip on the NFC item (in some firmwares, contactless payments may be called).
- Activate the NFC switch (should light up in blue).
- To transfer data, enable the Android Beam option (or Transfer data in newer versions of MIUI).
If you don't have an NFC option on the menu, you don't have a model that supports the technology, so check it in the specifications of the device or through the CPU-Z app (Sensors section).
βοΈ Preparation for data transmission through NFC
On some devices (such as Xiaomi 13 Ultra), NFC can be enabled through the Quick Settings Panel. To do this, swipe down from the top edge of the screen and find the NFC icon (usually next to Bluetooth and Wi-Fi).
How to Transfer Files, Contacts and Links over NFC
The data transfer process depends on the type of content, and let's look at the three most popular scenarios:
1. Transfer of photos or files
Open a file in a gallery or file manager, tap Share β NFC (or Android Beam). Apply the back of your smartphone to another device (screen up), and the receiving phone will receive a notification that you have started transferring, confirm it.
2. Sending contact
Go to the Contacts app, select the profile you want, and click Share β NFC. On the receiving device, the contact will be automatically saved in.vcf format.
3. Transmission of a reference or text
Copy the text to the clipboard, then open Settings β NFC β Transfer Setup and select Text. attach the phone to another device, the data will be sent instantly.
| Type of data | Max size. | Transmission speed | Is the Internet required? |
|---|---|---|---|
| Contacts (vCard) | 10 kb | ~1 second | No. |
| Photos (JPEG) | up to 1 MB | 2-5 seconds | No. |
| Text/references | 4K | momentarily | No. |
| Audio (MP3) | 500 kb | 3-10 seconds | No. |
β οΈ Note: If the data transmission is interrupted, check if the case is blocking the signal. NFC. Metal or thick covers can reduce the range of the module.
π‘
To speed up the transfer of large files, first send them via NFC as a link (for example, by uploading to the cloud), and then download them on the second device.
Configure contactless payments via NFC on Xiaomi
To pay for purchases by phone, you must link your bank card to Google Pay or Mi Pay (not available in all regions).
- Install the Google Pay app from the Play Market.
- Open it and press Add the map.
- Take a picture of the map or enter the data manually.
- Confirm the binding via SMS or banking application.
- Enable NFC in your settings and install Google Pay as the default payment app (Settings β NFC β Payment App).
To pay, unlock your phone, bring it to the terminal (distance 2-3 cm) and wait for the signal. AMOLED-screens (for example, Xiaomi 14 Pro) payments work even when the display is turned off, if the option is always active screen.
If payments fail to pass:
- π Check if your bank supports contactless payments through NFC.
- π± Update Google Pay and firmware MIUI last-minute.
- π‘οΈ Make sure there are no root rights or custom firmware on the phone (they block payment services).
What if the terminal canβt see the phone?
Using NFC to Connect Xiaomi Smart Devices
NFC technology makes it easier to pair with Xiaomi ecosystem gadgets, such as:
- π§ Xiaomi Buds 4 Pro, Redmi Buds 5.
- β Smart watch Mi Watch 2, Redmi Watch 3.
- π Smart home sensors (such as Mi) Door/Window Sensor).
- π Mi Smart Speaker Columns.
To connect:
- Turn on NFC and Bluetooth on your smartphone.
- Activate the pairing mode on the gadget (usually by pressing the button for 3-5 seconds).
- Bring the phone to the device - a notification about the connection will appear.
- Confirm the pairing in the Mi Home or Xiaomi Wear app.
Advantage NFC before Bluetooth: no need to search for the device in the list and enter PIN-It takes just one touch, and it'll automatically connect.
β οΈ Note: After the first connection through NFC Further synchronization of data (for example, steps from a fitness bracelet) will occur over Bluetooth. NFC You only need to start the initial setup.
Solving Common NFC Problems on Xiaomi
If NFC is not working, check the following points:
| Problem. | Possible cause | Decision |
|---|---|---|
| NFC is not included | There is no module in the device | Check the characteristics of the model on the Xiaomi website |
| No files are transferred. | Android Beam is turned off | Include in Settings β NFC β Data Transfer |
| Payments don't pass | Not configured payment application | Install Google Pay and link the card |
| Devices can't see each other. | Metal cover or long distance | Remove the cover, reduce the distance to 2-3 cm |
If the problem persists, try:
- π Reboot your smartphone.
- π² Reset network settings (Settings) β System system β Resetting settings β Reset Wi-Fi, mobile network and Bluetooth).
- π οΈ Update MIUI last-minute.
- π‘ Check the antenna. NFC Physical injuries (for example, after a phone crash).
π‘
If NFC stopped working after the MIUI update, try rolling back the firmware or waiting for a patch from Xiaomi. Often bugs are fixed in future versions of the software.