How to link the card to the phone through NFC Xiaomi Redmi 9: Banking, Transportation and Passes

Module NFC Xiaomi Redmi 9 It allows you to use a smartphone instead of physical cards – from bank cards Mir/Visa But many users have problems with the phone not seeing the card, the app is giving an error, or the feature is not in the settings at all. 9, including avoidance of common errors and alternative solutions for models without NFC.

It’s important to understand that Redmi 9 came in several versions, and not all of them are equipped with a chip. NFC. For example, the global market version (Redmi 9 Global) often lacks this feature, while the Chinese version (Redmi 9 China) or the Indian version (Redmi 9 Prime) can support it.

If NFC The phone is there, but the cards are not tied, the problem may lie in the:

• 🔹 Unrenewed — MIUI Blocks work with some banks without the latest firmware.
• 🔹 Regional restrictions – Google Pay does not work with Russian banks.
• 🔹 Incorrect security settings – screen locking disabled or no PIN-map-code.

Verification of availability NFC Xiaomi Redmi 9

Before you try to tie the card, make sure your Redmi 9 supports at all. NFC. You can do this in three ways:

1. Visual inspection: There should be an icon on the back of the phone (usually next to the Xiaomi logo) NFC — stylized letter "N" with waves.
2. Through Settings: Go to Settings → Connections and sharing → NFC. If there is no point, there is no chip in the device.
3. Model check: type in ##4636## (engineering menu) and then go to Phone Information. NFC This should be supported by: Yes.

If NFC no, but you need contactless payment critically, consider alternatives:

• 💳 Banking applications with virtual card generation (for example, SberBank Online or Tinkoff).
• 🚇 Transport maps in format QR-code (for example, Troika in the Metro Moscow app).
• 🔑 External NFC-tags (glue chips that are attached to the phone and emulate the card).

⚠️ Attention: On Redmi 9A, Redmi 9C redmi 9T (in most regions) NFC Don't confuse them with the base model of the Redmi 9!

2. Preparation of the phone to link the card

Even if NFC Redmi 9 has, before binding the card you need to follow several mandatory steps:

1. Update. MIUI To do this, go to Settings. → The phone. → Update: Update fixes card-reading bugs.
2. Set the screen lock (PIN, Without it, most banking applications will not allow you to add a card.
3. Activate. NFC in settings: Settings → Connections and sharing → NFC → switch on.
4. Download the necessary application: For bank cards: Google Pay (does not work with Russian banks), SberBank Online, Tinkoff. For transport cards: Metro Moscow, Transport card of St. Petersburg. For passes: your company's application (for example, for transport cards: Metro Moscow, Transport card of St. Petersburg, Pass2U KeyMaster).

If you use Google Pay, please note that since 2022, the service does not support Russian bank cards.

• 🏦 SberBank Online (for Sberbank cards).
• 💰 Tinkoff (for Tinkoff Bank cards).
• 🌍 Mir Pay (for cards World).

⚠️ Note: Enterprise pass binding may require root rights or special software from the employer.

3. Bank card binding (Mir, Visa, Mastercard)

The process of adding a credit card depends on the application. Let's consider the two most popular options for Redmi 9:

Method 1: Through Sberbank Online

1. Open the SberBank Online application and log in.
2. Go to the Maps section → select the desired card.
3. Click Add Add to Apple/Samsung Pay (Yes, even for Xiaomi!).
4. Follow the instructions: the phone will automatically detect support. NFC and suggest that you tie the map.
5. Hold the physical card to the back of the Redmi 9 (to the area with the chip). NFC) confirm.

Method 2: Through Mir Pay

1. Download Mir Pay from Google Play.
2. Register and add the World card manually (enter number, expiration date, CVC).
3. Confirm the transaction via SMS from the bank.
4. Activate the card for contactless payments: in the application click Add to the wallet → NFC.

After binding, check the performance:

1. Unlock the phone.
2. Bring it to the payment terminal (distance - 2-5 cm).
3. Wait for vibration or sound signal.

⚠️ Warning: If the terminal doesn’t read the card, try turning off the power saving mode – it can block work NFC. Also make sure there is enough money in the account: some terminals do not accept payments with zero balance.

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If the bank application does not see NFC, Reboot your phone and re-enable the module in the settings. Sometimes resetting the network settings helps: → SIM-maps and mobile networks → Resetting network settings.

4. Linking of the transport card (Troika, Arrow, Plant)

Transport cards are tied differently than bank cards, and two methods are suitable for Redmi 9:

Method 1: Through the official annex

For example, for Troika (Moscow):

1. Download Metro Moscow from Google Play.
2. Sign in and go to the Transport Cards section.
3. Press Add map Add map → Troika.
4. Bring a physical three to the back of the phone (to the area). NFC).
5. Wait for confirmation – the card will be tied to the phone.

Method 2: Through NFC-tag (if the phone does not support virtualization)

If the application gives an error The device does not support virtual cards, use an external one. NFC-marker:

1. Buy it. NFC-sticker (e.g, NTAG213 or NTAG216).
2. Download the NFC Tools app from Google Play.
3. Scan the sticker, then write down the transport card details on it (if it supports copying).
4. Attach the sticker to the back of the phone.

Important: not all transport cards can be virtualized, for example, Troika supports phone binding, but Strelka (St. Petersburg) does not.

5. Enterprise Pass or Key Card binding

Corporate passes (for example, for an office or university) are tied through specialized applications.

1. Check with the administrator what software is used to manage passes (for example, Pass2U, KeyMaster, HID Mobile Access).
2. Download the application and log in (a login/password from the security service may be required).
3. In the My Cards section, click Add Pass.
4. Bring the physical card to the phone (if you need a copy) or enter the data manually.
5. Confirm the link via SMS or email.

If the application requests root access or issues an error Not supported by a device, try:

• 🔧 Update the application to the latest version.
• 📱 Install MIUI for the Chinese region (through settings) → Additionally. → Region).
• 🔑 Use externally NFC-chip (as in the case of transport cards).

⚠️ Note: Some pass systems (e.g, HID iClass) require certified devices. If your Redmi 9 is not supported, binding may not be possible.

Typical errors and their solutions

When linking cards through NFC Xiaomi Redmi 9 users often face the following problems:

If none of these methods helped, check:

• 🔋 Battery charge - at a level below 15% NFC may work unstablely.
• 🛠️ Chip integrity – physical damage to the body can disrupt the module.
• 📱 Application conflict – some programs (e.g, NFC Tools block access to chip.

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If the phone doesn’t see the map, try calibrating it. NFC: Go to Settings. → System system → Resetting settings → Resetting the network settings. This often solves reading problems.

7. NFC alternatives: what to do if the module is not

If your Redmi 9 is not equipped NFC, But you need contactless payments, consider these options:

1. Virtual cards in banking applications

Many banks allow you to generate virtual cards for payment through the QR-code:

• 🏦 SberBank: in the application click Maps → Virtual card.
• 💳 Tinkoff: Maps → Add a virtual one.
• 🌐 Qiwi or YuMoney: Payment through QR shop-in.

External NFC-adapter

You can buy an external one. NFC-The module that connects to the phone through USB-C Or audio-jack (if any) popular models:

• 🔌 NFC Reader Writer (connected by the USB).
• 🎧 ACR1255U (audio-jack).

3. Smart watches or bracelets with NFC

Some smartwatches (e.g. Xiaomi Mi Band 6) NFC or Amazfit GTR 3) support contactless payments, the card can be linked to the clock, and the phone can only be used for management.

Important: Virtual cards in banking applications do not require NFC, They only work in stores with support. QR-payment (for example, Magnet, Five, Auchan).

8.Security: How to Protect Your Linked Cards

Contactless payments are convenient, but require special attention to security.

• 🔒 Turn on the screen lock (PIN Without it, an attacker can pay for a purchase with your phone.
• 📱 Turn it off. NFC, It's going to prevent accidental write-offs.
• 🛡️ Set limits on contactless payments in a banking application (e.g. no more than 1,000). ₽ proofless).
• 🔄 Check your transaction history regularly for suspicious write-offs.

If the phone is stolen:

1. Block the cards immediately through the bank application or by hotline number.
2. Use the Find Device feature in Mi Account to remotely clear the data.
3. If a transport card is attached, block it in the appropriate application (for example, Metro Moscow).

⚠️ Warning: Never keep it. PIN-Card codes in phone notes or cloud services. Use dedicated managers (e.g. KeePass or Google) to store passwords. 1Password).

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For maximum security, link a separate virtual card with a limit to your phone, rather than the main debit card, which minimizes the risk of losing your device.

FAQ: Frequent questions