Modern Xiaomi and Redmi smartphones have turned into a universal tool that replaces a wallet, entrance keys and a travel ticket. A key role in this functionality is played by the Near Field Communication (NFC) module, which allows contactless payment and fast data exchange. However, not all users immediately find the switch in the settings, especially after updating the MIUI shell or switching to HyperOS.
Enabling this function is a simple process, but it has its own nuances depending on the device model and software version. Some budget models may not have hardware support, which often causes confusion among beginners. We will look in detail at how to activate the module, set up payment systems and use your smartphone for other useful tasks, avoiding common mistakes.
In this guide you will find not only standard paths in the menu, but also answers to questions about transaction security. We will also discuss why the button may be missing and what to do in such a situation. Understanding the principles of operation contactless communication will help you use the capabilities of your Xiaomi or Redmi to their full potential.
Checking hardware support and module availability
Before When looking for settings, you need to make sure that your device is physically equipped with an NFC chip. Manufacturers sometimes produce identically designed models with different features for different markets, and cheaper versions may not have a communications module. Checking hardware availability is the first step that will save you time.
The fastest way to find out the truth is to look at the technical specifications in the “About Phone” menu. Go to Settings → About phone → All characteristics. In this list, look for a line that mentions NFC. If there is no such line, most likely the module is not installed. An alternative method is to use third-party utilities from the application store that scan the smartphone's hardware.
It is also worth paying attention to the back cover of the device. Manufacturers often place the logo NFC right on the body, usually at the bottom or next to the camera. The absence of markings does not always guarantee the absence of a chip, but its presence is a 100% sign of technology support. Owners of flagship lines Mi and Xiaomi can rest assured: the module is always there.
⚠️ Attention: The presence of an NFC module does not guarantee the operation of all payment systems. In some regions, due to sanctions or bank security policies, standard payment services may be limited, even if the phone is technically working.
If you bought a smartphone secondhand or brought it from another country, the firmware version may affect the display of functions. Global versions (Global ROM) usually have a full set of functions, while Chinese versions (CN ROM) sometimes require additional configuration to work with local payment systems.
The standard activation path is through the Android settings
In most cases, enabling the function takes a few seconds and is done through the standard system menu. The interface of the MIUI shell and the new HyperOS is intuitive, but the location of the switches may vary slightly depending on the version of Android. The main path is through the section with connections.
Open the main settings menu and find the section Connection and sharing (or “More” in older versions). Inside you will see the item NFC. Move the switch to the active position. Immediately after this, the system may prompt you to select the default application for card emulation if you have several payment services installed.
To speed up the process, you can use the notification curtain. Swipe down from the top of the screen to open the Quick Access Toolbar. Find the icon with the letters NFC. If it's not on the first screen, click on the pencil or edit button to add a shortcut to the visible panel. This will allow you to turn the module on and off with one touch.
- 📱 Go to
Settingsyour device. - 🔗 Select the section
Connection and sharing. - 📡 Find the item NFC and activate the toggle switch.
- ✅ Check the appearance of the icon in the status bar.
After activation, a corresponding icon may appear in the top status bar, although in modern versions of Android it is often hidden to save space. The main thing is that the switch in the menu lights up blue or green. Now the smartphone is ready to interact with terminals and tags.
For quick payment, it is not necessary to go to the menu every time. Add an NFC shortcut to the notification shade to turn on the module only at the time of purchase and turn it off afterwards, saving battery power.
Setting up Google Pay and Mi Pay payment systems
Simply turning on the module is not enough to make purchases. You need to set up software that will manage your payment information. Xiaomi smartphones historically used the service Mi Pay, but in global versions the de facto standard became Google Wallet (formerly Google Pay).
To add a card, download your bank's application from the official store Play Market. After installation and login to your personal account, find the payment or adding cards section. Follow the instructions in the application to link your plastic card to your smartphone. You will need to enter the CVC code and confirm the transaction via SMS or push notification.
It is critical to check the Contact Payment Default setting. Go to NFC settings (Settings → Connection and sharing → NFC → Element position). Here you need to select HCE Wallet (or Google Pay), and not “SIM Wallet”. This will ensure correct transfer of tokenized data through the virtual account, and not through the operator's SIM card.
| Settings parameter | Recommended value | Description |
|---|---|---|
| Element position | HCE Wallet | Use of the phone's built-in secure chip |
| Element position | SIM wallet | Use of an operator SIM card (outdated method) |
| Payment without unlocking | Disabled | Requires screen unlocking for security |
| Sound when paying | Enabled | Audio confirmation of a successful transaction |
In some cases, the bank may request additional identity verification through a video call or office visit if the security algorithms deem the action suspicious. This is normal practice to protect your funds. After successful linking, the card will appear in the application Google Wallet and will be ready for use.
☑️ Preparing for the first payment
Using NFC to transfer data and tags
In addition to payment, contactless communication technology is great for quickly exchanging data between devices. The function Android Beam (or its modern analogues) allows you to transfer contacts, links, photos and even launch applications on another smartphone with a simple touch.
To transfer a file, open the desired content (for example, a photo in the gallery or a page in the browser). Bring the back panels of the two smartphones closer to each other. When the devices detect each other, the screen will vibrate and the display will prompt you to “Tap to Transfer.” Confirm the action, and the data will begin to be transmitted via a high-speed protocol.
The use of NFC tags is also widespread. These are small stickers with a chip that can be programmed to perform actions. For example, by touching your phone to a tag on your bedside table, you can automatically set an alarm and set your smartphone to Do Not Disturb mode. To record tags, special applications are used, such as NFC Tools.
⚠️ Attention: When scanning unknown NFC tags in public places (advertising posters, bus stops), be careful. Attackers can write a malicious link onto a tag, which will open automatically.
There are a huge number of scenarios for using tags: automatically connecting to Wi-Fi at home, launching a navigator in a car, or turning on a flashlight. This turns your smartphone into the center of your smart home without the need to buy expensive hub devices. Just stick the programmable tag in the right place.
How to app a tag?
To write data to the tag, download the NFC Tools application. Select the "Record" tab, add the desired task (for example, "Enable Wi-Fi") and click "Record 14 bytes." Touch the phone to the clean mark and wait for the success signal.
Antenna location and rules of use
The efficiency of the module directly depends on which part of the phone you touch the terminal with. The NFC antenna in smartphones is most often located at the top of the back cover, next to the camera block. However, in some models it may be offset to the center or even built into the battery compartment. Xiaomi And Redmi most often located at the top of the back cover, next to the camera block. However, in some models it may be offset to the center or even built into the battery compartment.
To find the exact location, use a simple method: slowly move the top of the phone along the payment terminal until you hear a characteristic squeak or feel a vibration. Please remember this provision for future transactions. Incorrect application is the most common cause of “Card not read” errors.
A thick protective case, especially with metal inserts or magnetic fasteners, can shield the signal and interfere with communication. If the payment does not go through, try removing the case or placing the phone on the other side (although this rarely works). Thin silicone or plastic covers are ideal.
- 📍 The antenna is usually located in the upper third of the case.
- 🛡️ Metal cases block the module's radio signal.
- 📳 Keep the phone tightly pressed to terminal 1-2 seconds.
- 🔋 Low battery power can turn off the module to save energy.
It is also worth considering that when the battery level is very low, the system can forcefully turn off NFC to save energy. If the phone is critically discharged, the function may not turn on until the charger is connected.
Precise alignment of the phone antenna and the terminal reader is the key to successful payment. Experimentally find the sensitivity zone of your device and remember it.
Solving problems and common connection errors
Even with correct settings, users may encounter problems: the terminal does not see the phone, payment does not go through, or the function turns off spontaneously. Often the reason lies in an application conflict or outdated software. Updating the system to the latest version MIUI or HyperOS often solves software failures.
If the module is turned on, but the terminal does not see it, check whether you have several applications installed that claim to be the main means of payment. Go to NFC settings and make sure that only one application is selected in the "Default payment" item (for example, Google Wallet). A priority conflict may block signal transmission.
In rare cases, resetting the network settings helps. This won't delete your personal data, photos, or contacts, but it will reset your Wi-Fi, Bluetooth, and NFC settings to factory defaults. Reset path: Settings → Connection and sharing → Reset Wi-Fi, mobile networks and Bluetooth. After the reboot, try setting up payment again.
⚠️ Attention: The settings interface may change with the release of new firmware versions. If you do not find the described items, use the search in the settings (magnifying glass icon at the top of the screen) by entering the query “NFC.”
If all else fails, there may be a hardware failure of the antenna or the cable has come off after a fall. In this case, diagnostics will be required at a service center. However, in 90% of cases, the problem is solved by software methods or by correctly setting application priorities.
What to do if the reset did not help?
Try deleting and reinstalling the bank application. Sometimes the application cache accumulates errors that prevent correct operation of the phone's security module.
Questions and answers (FAQ)
Is it safe to pay with your phone via NFC?
Yes, it is even safer than with a regular card. When paying via NFC tokenization technology is used: the terminal receives not your card number, but a one-time digital code. It is almost impossible to intercept this data and decrypt it.
Does NFC work if the screen is turned off?
In most cases, payment requires that the screen be turned on and the device unlocked (by fingerprint, face or PIN code). This is a safety measure. However, reading tags can also work with the screen turned off, if this function is allowed in the settings.
Why did the NFC icon disappear after the update?
In new versions of Android and shells Xiaomi developers often remove the permanent icon from the status bar for a visually clean interface. The module itself works. Check its status in the notification shade or in the settings.
Is it possible to clone an intercom key on Xiaomi?
It is difficult to do this using standard phone tools due to Android security restrictions. However, there are special applications and external recording devices that allow you to copy the key frequency to your phone or to a special sticker attached to the case.
Does enabled NFC affect battery consumption?
The module itself consumes negligible energy in standby mode. Noticeable consumption begins only at the moment of active data transfer or search for tags. Keeping it turned on all the time is quite advisable and will not significantly affect autonomy.