A modern smartphone is turning into a full-fledged e-wallet, and owners of budget devices often wonder how to activate this feature. Xiaomi Redmi 9 is a popular model that features a short-range contactless communication module, but its setting can cause difficulties for inexperienced users. Unlike flagships where technology works out of the box, here sometimes you need manual intervention or checking regional settings.
The right configuration of the module allows you not only to pay for purchases in one touch, but also to read tags, exchange contacts and manage a smart home. It is important to understand that successful operation depends not only on the software, but also on the physical integrity of the antenna, which is built into the back cover of the device. If you just purchased a gadget or updated firmware, it is worth checking the basic parameters of the system.
In this article, we’ll take a closer look at all the steps of activation, from finding hidden switches to adding bank cards. You’ll learn why the feature may not be available in your region and how to get around software limitations. Xiaomi constantly changes the interfaces of the MIUI shell, so current screenshots and exact paths to the menu will help avoid confusion.
Verification of module availability and hardware compatibility
Before you get to software settings, you need to make sure that your particular smartphone modification does support contactless communication.The market is oversaturated with Redmi 9 versions that are visually identical but have different hardware platforms.The global version (Global) often differs from the Chinese (CN) or Indian (India) set of installed components.
The most reliable way to check for a chip is to use the system test menu, which is a built-in diagnostic tool that shows the real state of the iron, regardless of what is written in the specifications on the box. Click on the dial keyboard the combination ##6484## or ##4636###.
- 📱 Select a point"NFC test" in the menu that appears CIT.
- 📡 Bring a card or other label to the back of the device.
- ✅ If the module is in good working order, you will see a message about a successful readout.
- ❌ In the absence of a response, the security may not be.
⚠️ Note: In some regions (for example, Russia or India), Xiaomi released versions of Redmi 9 without a module NFC, It's almost impossible to visually distinguish them from versions with a chip.
Also worth noting is the rear cover of the case: Near Field Communication models often (but not always) have the NFC logo on the bottom or next to the camera. Lack of labeling does not guarantee the absence of a chip, but is an indirect sign of a stripped-down version. If tests fail, further software tweaking will be useless.
Hardware compatibility also depends on the version of the operating system. Make sure your Redmi 9 runs on the current version of MIUI. Older Android builds may not correctly detect the presence of a chip or block it from working due to driver errors. Software updates often solve hardware recognition problems.
Basic activation of the function in Android settings
If the hardware is confirmed, the next step is software enabled. The standard activation path in the MIUI shell may vary depending on the Android version, but the logic remains the same.
Go to the main settings menu and find the Connection and Sharing (or "Additional Features" in older versions) section, and that's where the switch that triggers the radio module hides, and when you turn on the "N" icon, it will appear in the notification curtain, indicating that the device is ready to go.
- 🔍 Open "Settings" on the desktop.
- 🔗 Go to the section "Connection and Sharing".
- 📶 Find a point"NFC" and activate it.
- 💳 Make sure the indicator is on in the status bar.
It's important to choose the right security element. NFC There is a parameter "Secure Element" (Secure Element). For the correct operation of banking applications and payment services, you need to choose the option HCE Wallet or"SIM-"card" if your carrier supports payment via SIM card, the wrong choice will lead to the fact that the terminal in the store will not see the phone.
Once the module is enabled, the system may suggest setting up Google Pay (or its analogues, such as Google Wallet).Agree to the offer, as this will create the necessary profile for storing tokenized card data.Without this step, even the module on will not allow you to make purchases.
☑️ Activation checklist NFC
Setting up Google Pay and adding bank cards
The main purpose of most users is to pay for purchases with a smartphone, which requires setting up Google Pay (now Google Wallet), and the process of linking a card requires care, as banks use different levels of protection, and sometimes additional verification is required through SMS or a bank application.
Open the Google Wallet app and click Add Payment. The camera automatically reads the plastic data, but manual input is also possible. The system will contact the issuing bank to verify the card. If the bank supports tokenization, the card will be added instantly.
| Type of card | Status of support | Verification required | Payment limits |
|---|---|---|---|
| Visa / Mastercard | Complete. | SMS / Push | Depends on the bank. |
| Mir (Russia) | Limited* | Bank's annex | Depends on the bank. |
| UnionPay | Complete. | SMS | Standard. |
| Virtual cards | Complete. | No (often) | Depends on the bank. |
| * Alternative payment methods (Mi Pay, Samsung Pay or bank applications) are required for MIR cards in Russia due to sanctions. |
In some cases, the bank may reject the peg because it considers the action suspicious. If you receive a denial notice, contact the bank's support or try adding a card through your financial institution's official app. Many banks have direct integration with Google Wallet, which simplifies the process.
Once added successfully, the card becomes the default "primary" card, you can change the priority of the cards in the application if there are more than one. When you bring the phone to the terminal, the selected card will be used (PIN-code, pattern lock or fingerprint).
⚠️ Note: To work, the smartphone screen must be unlocked.Paying through a switched-off screen (as in some older Host Card Emulation implementations) on modern versions of Android often requires prior authorization.
Use of Mi Pay and alternative services
Xiaomi device owners have access to their own payment service, Mi Pay, but its availability varies greatly by region: in Russia, for example, direct Mi Pay for cards of Russian banks does not work due to the lack of support from payment systems; in other countries (India, some countries in Europe), this service may be basic.
If standard Google Pay is not suitable or available, alternatives may be considered: some users install third-party apps to emulate cards, but this carries security risks. Official alternatives include applications of specific banks that are able to emulate a card through NFC on their own, bypassing the system Google Wallet.
To set up Mi Pay (if available in your area):
- Go to the Security or My Wallet app.
- Get your Mi Account attached.
- Add the map through the scan.
- Set Mi Pay as the default payment method in NFC settings.
It's important to understand the difference between HCE (Host Card Emulation) and SIM-dependent methods. HCE stores data in a secure area of the phone's processor, making it independent of the SIM card. This is a more modern and convenient approach. If you change SIM cards often, HCE is the only option that does not require the carrier to reissue the cards.
Why doesn't Mi Pay see my card?
Payment problems and methods of their elimination
Even when properly configured, there can be failures: the terminal can't see the phone, the payment doesn't pass or the application gives an error. Often the problem lies in the case. Metalized cases, magnetic clasp cases or too thick plastic shield the signal, making communication impossible.
Try to remove the case and try again, and if that helps, it means the accessory was the problem, it's also worth checking if the chip is demagnetized, and sometimes it helps to reboot the device, which resets temporary errors in the radio module.
- 📱 Remove the protective case from the phone.
- 🔄 Restart the device completely.
- 📡 Make sure that NFC included and selected HCE.
- 💳 Check the availability of the Internet (for tokenization).
If the terminal writes "Transaction error", the problem may be on the bank's side, the token may have expired or the card is blocked by the bank due to suspicious activity, check the balance and status of the card in the bank's application, and make sure that the phone has up-to-date security updates from Google Play Services.
In rare cases, cleaning the cache of the Google Pay app helps. Go to Settings → Apps → All Apps → Google Pay → Storage → Clear the cache. Don’t confuse it with Clear Data, as this will remove the associated cards and you will have to add them again.
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When paying, put your phone on top of the terminal (where the camera is) rather than the center. The NFC antenna in Redmi 9 is located in the upper segment of the case.
Additional NFC Features on Redmi 9
Contactless isn't just about payment. It can read information from tags, business cards, even documents. You can program your smartphone to do things when you touch a certain tag. For example, touching a tag on your desktop can include Do Not Disturb or triggering a navigator.
Labeling requires third-party applications like NFC Tools, which allow you to write links, contacts, text messages to clean labels, which is convenient for automating everyday scripts or quickly sharing information.
And you can also pair devices quickly through NFC. Headphones, speakers, and fitness bracelets often support fast connectivity. You just turn on the module on the phone, activate the pairing mode on the accessory and bring them together, and the system will suggest that you complete (pair).
⚠️ Note: Do not store sensitive information on your phone in the form of text tags NFC Anyone with the appropriate app can read your tag if it's not secure.
The Android Beam feature in the new versions of Android has been replaced by Quick Share, but the principle of working through NFC remains similar: the module is used to shake hands with devices, and data transfer goes via Wi-Fi Direct. This allows you to quickly share photos and videos with other users of Xiaomi or Android smartphones.
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NFC on Redmi 9 is a feature-rich tool, and in addition to payment, it opens up the possibility of automating tasks and quickly connecting the peripherals, turning the smartphone into a center for managing the digital environment.