How to connect a bank or transport card to NFC on Xiaomi Redmi 9: full instructions

Xiaomi Redmi 9 with NFC support allows you to use contactless payments, transport cards and other smart wallet features. However, many users face difficulties when connecting for the first time: the module is not detected, cards are not added, or the system emits errors. In this article, we will analyze all the stages of configuration, from checking hardware support to adding cards to Google Pay, Mi Pay and transport applications.

It is important to understand that Redmi 9 was produced in several versions, and not all of them are equipped with a variety of different versions. NFC-Even if the box says it has a module, it depends on the region of the firmware and the version of the device. NFC, What apps will be needed for different types of cards, and what to do if the smartphone does not see the payment terminal.

This article is relevant for Xiaomi Redmi 9 (model M2004J19C) with MIUI 12-14 firmware and Android 10-13. If you have a different version of the software, some menu items may differ - we will specify alternative paths.

How to check if there is NFC on your Redmi 9

Before you try to plug in a card, make sure your smartphone does support NFC. Even if the box or the specifications of the online store indicate a module, some Redmi 9 batches (especially for Asian markets) were released without it.

Methods of verification:

  • πŸ“± External inspection: there should be a logo on the back next to the camera NFC (The absence of an icon does not always mean the absence of a module, but its presence guarantees support.
  • πŸ” Checking the model: go to Settings β†’ The phone. β†’ A model. M2004J19C (Global version, chances of availability NFC The models are higher. M2004J19G (India) or M2004J19PI (Indonesia often goes without a module.
  • πŸ› οΈ Test through the engineering menu: type in the phone dial ##4636##, select Phone Information and scroll down. NFC β€” module is present.

If none of the methods have confirmed the existence of NFC, Your Redmi 9 probably doesn't support the technology, so you can't plug in the cards, you'll need to buy an external one. NFC-Adapter (but this is a separate topic).

πŸ“Š You have already tried to connect the map to NFC Redmi 9?
Yeah, but it didn't work.
Yeah, it's working.
No, I'm just going to.
I don't know if there's an NFC.

Activation of NFC on Xiaomi Redmi 9: step-by-step instructions

If the NFC module is present, you need to turn it on in the settings. By default, the function is disabled to save battery life. Here's how to activate it:

  1. Open Settings (the gear icon on the main screen).
  2. Go to Connect and Sharing (or Wireless Networks in older versions of MIUI).
  3. Slip on NFC (may be in the submenu Additional).
  4. Activate the NFC switch at the top of the screen.
  5. Below, select the mode of operation: πŸ’³ Default Card – for contactless payments. πŸš‡ Transportation card – if you use a travel card. πŸ”„ Data exchange – to transfer files between devices.

After the NFC is turned on in the status bar (top panel), the icon N will appear. If it is not there, restart the smartphone or check whether the module block the case with metal elements.

β˜‘οΈ Preparation for the connection of the card

Done: 0 / 5

What applications are needed to connect maps

Depending on the type of card (bank, transport, discount) you will need different applications.

Type of cardAnnexSupport in RussiaFeatures
Bank cards (Visa/Mastercard)Google PayYes.Works with most Russian banks (Sberbank, Tinkoff, VTB, etc.)
Bank cards (Mir)Mir Pay or SberPayYes.Requires a link to a phone number
Transport cards (Troika, Arrow)My Pass (Moscow)Yes.Supports replenishment and travel history
Universal paymentsMi PayPartially.Works with Chinese banks, in Russia is limited

For bank cards, Google Pay is the most versatile option. Install it from the Google Play Market and follow the link instructions. If you have a Mir card, check the support in your bank's app (for example, Sberbank Online has built-in SberPay).

⚠️ Note: Mi Pay does not officially support Russian banks, and if you are offered a β€œcircumvent” way to set it up, it is a scam.

How to add a bank card to Google Pay on Redmi 9

The process of linking a card to Google Pay takes 5-10 minutes.

  • πŸ“Ά You have a stable Internet (Wi-Fi or mobile network).
  • πŸ”’ The card supports contactless payments (it must have the PayPass logo or PayWave logo on it).
  • πŸ“± It's on on the smartphone. NFC and unlocking by fingerprint or PIN-code.

Instructions for addition:

  1. Open Google Pay and click Add Card.
  2. Choose a Credit or Debit Card.
  3. Scan the card with the camera or enter the data manually (number, expiration date, CVC).
  4. Confirm the binding via SMS or push notification from the bank.
  5. Come up with it. PIN-payment code (to be requested for amounts in excess of 1000-3000) β‚½, depending on the bank).

When you add the card, you'll see the list, and to pay for the purchase, unlock the phone, bring it to the terminal (2-5 cm) and wait for the beep.

  • πŸ”„ Reboot your smartphone.
  • πŸ“΅ Make sure that NFC lid-free.
  • 🏦 Check if the terminal supports contactless payments (should be a PayPass sign).

πŸ’‘

If the terminal is not responsive to the phone, try to hold the smartphone to another part of the device – sometimes the NFC chip is not in the center, but closer to the edge.

Set up a transport card (Troika, Arrow) on Redmi 9

To use Redmi 9 instead of a ticket, you will need an app My Pass (Moscow) or a regional analogue (for example, Strelka for the Moscow region).

Instructions for the Troika card:

  1. Install My Traveler app from Google Play.
  2. Register or enter through the public services.
  3. In the section My cards, click Add the card β†’ Three.
  4. Choose to Transfer an existing card or Buy a new card (virtual).
  5. Bring the physical card of the Troika to the back of the smartphone (where is located). NFC-chip) and wait until the transfer is completed.

Once added successfully, the card will be displayed in the app to pay for the fare:

  • Unlock the phone.
  • Bring it to the validator at a distance of 1-3 cm.
  • Wait for the green signal and the audible confirmation.

⚠️ Attention: Virtual Three on the smartphone works only when turned on NFC If the battery is down to 0%, the card will be unavailable - always have an emergency pass.

What to do if the transport card is not transferred?
If an error occurs when transferring a Troika or Arrow card, check: - Does your card support portability (older versions of cards issued before 2018 may not be supported). - Is there enough funds on the balance sheet (some systems require a minimum balance of 50-100) β‚½). - Is the card tied to another device (one card can only be used on one smartphone).

Solving Common NFC Problems on Redmi 9

If NFC is not working or is not working, the reasons can be both software and hardware.

Problem.Possible causeDecision
NFC is not included in the settingsNo module or incompatible firmwareCheck the smartphone model (see section 1). Update the MIUI to the latest version.
Terminal doesn't see the phoneWeak signal, cover interference.Take off the case, take the phone to another location on the terminal, and check the default settings of the NFC Map.
Google Pay makes an error when adding a cardThe bank does not support the service or Internet problemsCheck the list of supported banks on the Google Pay website. Reconnect to the network.
Transport card is not carried overOld-style map or linked to another deviceContact the subway counter to replace the card with a new one. Untie the card from the previous phone in the app.

If none of these methods worked, reset the NFC settings:

  1. Go to Settings β†’ Applications β†’ Application Management.
  2. Find the NFC in the list and select Warehouse.
  3. Click Clear Data and Clear Cache.
  4. Reboot your smartphone and reset the setting.

Critical information: Some Redmi 9 firmware (especially Chinese ones) may have NFC locked at the system level, in which case only a flashing to the global version of MIUI will help.

Security with NFC on Xiaomi Redmi 9

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

  • πŸ” Always install. PIN-A code or pattern lock to unlock the screen, without it, payments up to 1,000 β‚½ may occur without confirmation.
  • πŸ“΅ Do not store your smartphone and bank card in the same place (for example, in a case) – this increases the risk of theft.
  • πŸ›‘οΈ Enable Google Pay option Unblocked for payments (in the app settings).
  • πŸ” Regularly check the transaction history in the banking application for suspicious write-offs.

If your smartphone is lost or stolen:

  1. Block the cards immediately through the banking app or by phone hotline.
  2. Remove the device from the list of trusted in Google Pay (can be done from another phone via pay.google.com).
  3. Restore access to your Google account and delete data remotely through Find My Device.

πŸ’‘

Never hand over your NFC-enabled smartphone to anyone else – even an unlocked phone can be used for payments without your knowledge.

FAQ: Frequent questions about NFC on Xiaomi Redmi 9

Can I use NFC on Redmi 9 without the internet?
Yes, the payments themselves don't need the Internet -- NFC is radio, but the first card to be added to Google Pay or Mi Pay will require a network connection.
Why does NFC drain the battery so quickly?
The NFC module consumes a minimal amount of power (less than Bluetooth or Wi-Fi). If the discharge is fast, the problem is more likely the background activity of other applications. Check the battery consumption in Settings β†’ Battery.
Can I transfer the Troika card back to plastic?
Yes, but only at the subway ticket office, and you can't transfer a virtual card back to the physical media on your own, because the transport system operators do.
Does NFC work on Redmi 9 with custom firmware?
It depends on the firmware. Most custom builds (like LineageOS) have NFC working, but there may be problems with Google Pay due to lack of certification. For bank payments, it's better to use official MIUI.
What if NFC stopped working after the MIUI update?
Reset your NFC settings (see Section 5) or reset your phone to factory settings. If the problem persists, roll back to the previous version of MIUI via the Mi Flash Tool.