NFC on Xiaomi Redmi 9: How to enable, configure and use

Why you need NFC on Redmi 9 and what it does

NFC (Near Field Communication) technology on Xiaomi Redmi 9 provides access to contactless payments, fast file transfer and interaction with smart devices. Despite the budget status of the model, the manufacturer has equipped it with an NFC module - but many users do not even know about its presence or do not know how to activate it correctly.

In this article, you will find unique information about hidden NFC settings on Redmi 9 with MIUI 12-14, including solutions for cases when the feature is not displayed in the menu. We will analyze not only the basic activation, but also the finer points of settings for Google Pay, Mi Pay and other services, and explain why the module may not work even after you turn it on.

Checking NFC support on Xiaomi Redmi 9: whether all versions are equipped with a module

Before you try to turn on NFC, make sure your Redmi 9 supports this technology at all. The fact is that there are regional model modifications where the module is not physically available. For example, the version for India (Redmi 9 India) often comes without NFC, whereas the global (Redmi 9 Global) and European (Redmi 9T NFC) versions are equipped with it.

Check the presence of the module can be in three ways:

  • πŸ” Box and documentation: find a mention on the packaging or in the user manual NFC contactless.
  • πŸ“± Specifications in Settings: Go to Settings β†’ The phone. β†’ Complete specifications and look for a line "NFC".
  • πŸ”§ Technical Tests: Use applications like NFC Tools (available on Google Play) – if there is a module, the program will detect it.

If none of the methods have confirmed the existence of NFC, Your Redmi 9 probably doesn't support the technology. LE transferring files or QR-payment-code.

πŸ“Š You've already used it. NFC on his smartphone?
Yeah, regularly.
I tried it, but it didn't come in handy.
No, I haven't.
I don't know if there's NFC on my phone.

Step-by-step: How to enable NFC on Redmi 9 via MIUI settings

If a module is present, it can be activated in a few steps. The interface may vary slightly depending on the version of MIUI (12, 13 or 14), but the general scheme remains the same.

  1. Open Settings (the gear icon on the main screen).
  2. Go to Connect and Sharing (or Network & Internet β†’ additionally in MIUI 14).
  3. Find the NFC and tap it. If you don't have it, search the settings (the magnifier in the upper right corner) and type "NFC."
  4. Activate the slider NFC β€” It should turn blue. 2-3 seconds while the system initializes the module.
  5. (Optional) Enable Android Beam (in MIUI 12/13) or Quick Transfer (in MIUI 14) to share files.

When you turn on the status bar (top bar), you'll see an NFC icon -- a white "N" on a blue background -- and if you don't have the icon, but the module is on, try restarting your phone.

β˜‘οΈ Preparation for use NFC

Done: 0 / 5

Contactless Payments: Google Pay, Mi Pay and Banking Apps

Turn on NFC, half the battle. To pay with your phone, you need to set up a payment service. Redmi 9 has three main options:

ServiceRequirementsHow to set upFeatures
Google PayAndroid 8.0+, a bank card with support for contactless paymentsInstall the application, add the map, confirm SMS-codeWorks with most banks (Sberbank, Tinkoff, VTB, etc.)
Mi PayMIUI 10+, UnionPay or local banks linked card (China, India)Setup in Mi Pay (pre-installed on Chinese firmware)In Russia, it is supported in limited ways, requires a VPN to configure
Banking applications (Sberbank Online, Tinkoff)Up-to-date version of the application, map with NFCEnable the option β€œContactless payments” in the card settingsMay require a separate activation in the personal account of the bank

For Google Pay, after installing the app:

  1. Open Google Pay and click Add Card.
  2. Scan the map or enter the data manually.
  3. Confirm the addition via SMS or push notification from the bank.
  4. Install Google Pay as the default payment app in NFC settings.

⚠️ Note: If you add a card to Google Pay, check if your bank has blocked the service.Some financial institutions (e.g. Gazprombank) require a separate activation. NFC-Payments through the call center.

Common NFC Problems on Redmi 9 and Their Solutions

Even when set up properly, NFC can be unstable, and here are some common errors and ways to fix them:

  • πŸ”„ NFC switches on but does not detect the device: restart the phone and check if the case interferes (metal elements block the signal).
  • πŸ’³ Payments do not pass: delete and add the card again to Google Pay, make sure the terminal supports contactless payments (icon) πŸ“Ά checkout).
  • βš™οΈ No point. NFC in settings: update MIUI check the firmware region (Chinese versions may hide the function).
  • πŸ”‹ NFC Turns off on its own: Turn off power saving mode for Google Pay or Mi Pay apps in battery settings.

If the problem persists, try resetting your network settings (Settings β†’ System β†’ Settings Reset β†’ Wi-Fi, mobile network, and Bluetooth Reset) This won’t delete your data, but will reset all communication modules, including NFC.

What if NFC doesn’t work after MIUI update?
Sometimes updates MIUI reset permits NFC-Try: 1. Clear the cache of the application NFC Service in Settings β†’ Annexes β†’ All applications. 2. Enable Developer Mode (7 taps by build number in About Phone) and activate the option Do not disable NFC When blocking in Developer Settings. 3. If nothing helps, roll back to the previous version. MIUI via Fastboot (instructions are available on the forum) 4PDA).

Where is the NFC antenna on Redmi 9: optimal position for payments

The efficiency of NFC depends on the correct position of the phone relative to the terminal. On Xiaomi Redmi 9, the antenna is located at the top of the back cover, next to the main camera.

  • πŸ“± Bring the phone to the terminal with the top part (where the camera) at a distance 1-3 centimeter.
  • πŸ”„ Keep the screen up (do not turn the phone down with the screen).
  • 🚫 Avoid metal surfaces between the phone and terminal (e.g. coins in a case).

If you use a magnetically mounted or metallized case, remove it before you pay, and note that some metallized glass can block the NFC signal.

πŸ’‘

For convenience, apply a small marker on the case at the location NFC-This will help you navigate quickly when paying.

Additional NFC features: file transfer, tags, smart devices

The NFC on Redmi 9 isn't just for payments, but here are some other useful scenarios.

  • πŸ“ Fast File Transfer: Activate Android Beam (MIUI 12/13) or quick transfer (MIUI 14), Then tap the two phones with the back covers to send photos, contacts or links.
  • 🏷️ Reading NFC-Tags: Use applications like this NFC Tools for reading information from labels (for example, in museums, on products or business cards).
  • 🏠 Smart home: Connect Xiaomi Mi Home devices (like door or lamp sensors) with one touch.
  • πŸš— Car keys: Some car models (such as Hyundai or Kia) support unlocking through the vehicle. NFC-smartphone.

To work with labels may require the purchase of empty NFC-Stickers (costs 50 rubles for 10 pieces on AliExpress) can be programmed to run scripts: for example, touching a tag on the phone will turn on Wi-Fi or start the navigator.

FAQ: answers to frequent questions about NFC on Xiaomi Redmi 9

Can I add NFC to the Redmi 9 if it’s not available?
No, the NFC module is soldered into the motherboard and cannot be installed separately. The alternative is to use Bluetooth fobs for contactless payments (for example, the Xiaomi Mi Band with NFC support).
Why does NFC not work after battery replacement?
When replacing the battery could damage the plume NFC-You can have antennas (it's next to the battery) check the plume connection, or you can go to the service center, and you can have a firmware failure, and you can try to update it. MIUI.
How to turn off the sound when paying via NFC?
Payment audio is configured in a payment service application (e.g. Google Pay: Settings β†’ Sounds and Vibrations) and cannot be turned off at the system level, as a security measure.
Can I use NFC to pay for transportation (metro, buses)?
Yes, but only if your bank supports transport payments (for example, Troika cards in Sberbank or Mir with the "Transport" function), add the card to Google Pay and link it to a transport application (for example, Metro Moscow).
Why does the terminal need to be used? PIN-the payment code, although the amount is small?
It depends on the settings of the terminal and the bank. 1000 β‚½ PIN-The bank can also tighten the rules after several consecutive contactless transactions (usually after the bank has signed a new code). 3-5 payment).

πŸ’‘

The NFC on Redmi 9 supports all standard functions (payments, data transfer, tag reading), but stable operation requires proper MIUI configuration and compatible bank cards. If the module is in the specifications, but does not turn on, the problem is most often in firmware or application conflict.