NFC Xiaomi Redmi Note 9: full setup and use in 2026

Xiaomi Redmi Note 9 is one of the most popular mid-range smartphones, which is still in active use in 2026. Despite the fact that the model was released in 2020, its functionality, including the module, is very popular. NFC, Many users still don't know how to set up the technology for contactless payments, file transfers or smart devices.

In this article, we will analyze all the nuances of the setting NFC On the Redmi Note 9, from basic inclusion to solving typical problems, you'll learn which versions of the firmware support all the module's functions, how to link bank cards, and why sometimes the chip stops working after an update, and also unique life hacks to increase the range of operation. NFC and protection against accidental payments.

What is it? NFC Why do you need it on the Redmi Note 9?

Technology NFC (Near Field Communication allows data exchange between devices up to 10 cm in Redmi Note 9, this module is built into the upper part of the case (near the main camera) and supports three main use cases:

• 💳 Contactless payments via Google Pay, Mi Pay or banking applications (SberBank, Tinkoff, etc.).
• 📱 Transfer files between smartphones (Android Beam) or connect to speakers, headphones.
• 🔒 Working with smart devices: tags, locks, transport maps (for example, Troika in Moscow).

It is important to understand that the Redmi Note 9 is equipped with a chip. NXP PN80T, which supports all modern standards (ISO 14443, ISO 18092), but its work depends on the firmware version MIUI. For example, in early builds (below). MIUI 12.0.3) may have been missing some functions, such as emulating transport maps.

Also. NFC On this smartphone, you can use it for:

• 🔑 Authorization in applications (for example, logging into the office using a badge card).
• 🎮 Connecting gamepads or accessories (for example, Xiaomi Game Controller).
• 📦 Readings RFID-labels on goods (if supported by the application).

Verification of availability NFC On your Redmi Note 9

Not all Redmi Note 9 models are equipped with a module NFC. To make sure your smartphone supports the technology, follow the following steps:

1. Open the Settings app (cog icon).
2. Go to Connections and Sharing (or Wireless Networks in older versions of MIUI).
3. Scroll the list to the point NFC. If it is not, your model does not support the function.

You can also check through the specifications:

⚠️ If you bought a smartphone in China or on AliExpress, chances are that NFC It's disabled at the software level, and in that case, only Global's firmware will help. ROM.

If NFC In the settings there, but does not work, try to update the firmware to the latest version MIUI (current for 2026 — MIUI 14.0.4 for Redmi Note 9 Pro).

Step-by-step adjustment NFC on the Redmi Note 9

Now let's get to the practice. NFC, follow this instruction:

1. Open Settings → Connections and Sharing → NFC.
2. Activate the NFC slider (should turn blue).
3. Click on Work Mode and select: Read Only - to scan tags. P2P (Peer-to-Peer: for file transfer; card emulation for payments and transport cards.

HCE (Host Card Emulation)

Default payment

After activation NFC It's going to be in the background to check if it's working:

• 📱 Bring your smartphone to another device with NFC (So, for example, the Mi Bluetooth Speaker, and it's going to be a beep.
• 💳 Attach to the payment terminal – Google Pay or other payment application should be launched.

Is NFC enabled in the settings?

Whether the correct mode of operation has been chosen (P2P/map-emulation)?

Is there a payment app (Google Pay, Mi Pay) installed?

Is the screen unlocked when you try to pay?

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⚠️ Attention: If NFC If it doesn't work when you pay, check if you're running a power saving mode. → Battery → Energy saving mode add payment application to exceptions.

To transfer files via NFC:

1. Turn on NFC on both devices.
2. Select Android Beam mode (some firmware called Mi Share).
3. Open the file (photo, contact, link) and bring the smartphones to each other.
4. Wait for the beep and confirm the transmission.

Configure contactless payments via NFC

One of the most popular applications NFC — You have to pay for your smartphone:

1. Install an application for payments: 🌍 Google Pay (works with most banks). 🏦 SberBank Online or Tinkoff (for these banks’ cards). 🇨🇳 Mi Pay (for Chinese firmware only).

Open Google Pay → Add Card → Scan or enter data → Confirm SMS- with code

• B Settings → NFC Select the default payment application.
• Please enter Google Pay or other app.

Important nuances:

• 🔐 Payment in excess of 1000 ₽ (in Russia will require input PIN-code or fingerprint confirmation.
• 📵 If the screen is locked, the payment will still pass (if the protection is not configured).
• 🔄 After adding a new card, you may need to restart the smartphone.

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If the terminal does not accept payment, try to bring the smartphone to it from a different angle – the chip NFC Redmi Note 9 is located closer to the upper left edge.

Use of the NFC for transport cards (Troika, Strelka, etc.)

Redmi Note 9 supports emulation of transport cards NFC, But it's necessary:

1. Make sure that the firmware supports the function (relevant to the MIUI 12.5+).
2. Download the official annex: 🚇 For Moscow: Metro Moscow or Troika: Wallet. 🚆 For St. Petersburg: Plantain. 🚌 For other regions: Transport card (from local operator).

Open the → Add Card → Select NFC- Card → Bring the physical card to your smartphone

Important:

• 📱 Physical card after binding can be removed – the data will be transferred to the smartphone.
• 🔄 If the balance of the card is reset after rebooting, update the transport card application.
• 🚫 Some turnstiles may not read the virtual card the first time – try holding your smartphone 1-2 seconds longer.

⚠️ In Moscow from 2023 there are restrictions on the use of NFC-Emulations for preferential travel.Clarify the current rules on the website mos.ru.

Typical problems with the NFC on the Redmi Note 9

Even after the right setup NFC It can work in an unstable way. Let's look at the most common problems and their solutions:

1. NFC does not turn on or immediately shut down

Possible causes and ways of correction:

• 🔋 Energy saving mode: Add NFC Exceptions (Settings) → Battery → Energy saving regime → Exceptions).
• 📱 Outdated firmware: Update MIUI Up to the latest version (minimum working version — MIUI 12.0.3).
• 🛠️ Module failure: Reset network settings (Settings) → System system → Resetting settings → Resetting network settings).

2 Contactless payments do not work

Check the following:

• 💳 Added correctly: Remove and add it to Google Pay.
• 🔒 Lock-in PIN: Unlock the screen before paying (some banks do).
• 📡 Poor connection: Bring your smartphone to the terminal for 2-3 seconds without tearing off.

3. NFC Cannot see tags or other devices

Possible solutions:

• 📍 Wrong position: Chip NFC Redmi Note 9 is located at the top of the table – bring it this side.
• 🔄 Application Conflict: Close all programs that use NFC (for example, NFC Tools).
• 🛡️ Protective case: Metal or thick covers can block the signal.

If nothing helps, try resetting your NFC settings:

Settings → Applications → Application Management → Three Points (menu) → Reset Application Settings → Select “NFC”

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If NFC stopped working after the MIUI update, try rolling back on the previous firmware version or wait for a patch from Xiaomi.

Additional opportunities NFC: Labels, automation, security

In addition to payments and file transfers, NFC Redmi Note 9 can be used for more advanced scenarios:

1. Programmable NFC-marker

With tags (costs from 50) ₽) You can automate routine activities:

• 🔊 Enabling silent mode: Attach your smartphone to a label on your desktop – the sound will turn off.
• 🌃 Activation of night mode: The label by the bed will include Do Not Disturb.
• 🚗 Navigator launch: Attach the tag in the car – Yandex.Maps will open.

You'll need an app for that. NFC Tools or Trigger.

2. Protection against accidental payments

To avoid unauthorized write-offs:

• 🔒 Set up a screen lock (PIN, graphical key).
• 📱 Turn off the option to Allow payments when the screen is locked in the settings NFC.
• 🛡️ Use a cover with protection from NFC-scanning (for example, with a metallized insert).

3. Working with smart locks and devices

The Redmi Note 9 is compatible with most smart locks (e.g. Xiaomi Mi Smart Door Lock), but for this:

• 🔑 The lock must maintain the standard NFC Type 4 or MIFARE Classic.
• 📱 In the lock app, select Add the key → NFC.
• 🔄 If the key is not added, update the lock firmware.

Also. NFC can be used:

• 🎮 Gamepads (Xiaomi Game Controller).
• 📦 Readings RFID-labels on goods (if supported by the store).
• 🏢 Access to the office or entrance (if the appropriate system is installed).

FAQ: Frequent questions about NFC on Redmi Note 9