NFC on Xiaomi Redmi 9: A Complete Guide to Setup and Use

Xiaomi Redmi 9

NFC

Unlike the flagship devices, where NFC It's activated by default, Redmi 9 often has to enable it manually. Moreover, not all versions of the smartphone support contactless payments - it depends on the regional firmware and the version of the chip. NFC, Set it up for different tasks and bypass possible limitations.

The main feature of Redmi 9 is that it NFC-The module is basic, it supports standard protocols, but may not work with some banking applications in certain countries, for example, in Russia and Europe problems are rare, and in Asia, sometimes additional configuration is required. We will tell you how to avoid common mistakes and make them NFC full-capacity.

If you have just purchased Xiaomi Redmi 9 or have been using it for a long time, but have never tried it. NFC — This guide will help you understand all the nuances, from checking hardware support to setting up Google Pay and transferring files via Android Beam.

How to check if there is NFC on your Redmi 9

Before you set up NFC, You need to make sure your smartphone supports this technology at all. There are several modifications to the Redmi 9 lineup, and not all of them are equipped with this technology. NFC-Here's how to test it:

The easiest way is to look at the box or the specifications of the device. NFC or a contactless icon, which means that the module is present. If there is no box, check the model in the settings:

Go to Settings. → The phone. → Device characteristics. Communications should have a paragraph NFC. If it is not, your version of Redmi 9 does not support the technology.

Another reliable method is to use third-party applications like NFC Tools from Google Play. After you install it, you run it, and if it sees the chip, it'll show you its status. If it doesn't, it'll give you an error. NFC not found.

⚠️ Note: Some sellers indicate NFC It's in the specs, but it's not really. 9A, Redmi 9C redmi 9i — they NFC Check the model carefully before buying if this feature is critical.

• 📱 Redmi 9 (NFC) — e) Supports (model) M2004J19C)
• 📱 Redmi 9 Prime – Supported by the model M2004J19PI)
• ❌ Redmi 9A/9C/9i — supportive
• 🔍 Redmi 9T — Supports (but with limited payment options)

If you buy a smartphone with your hands, there is a risk that NFC-The module is corrupted or disabled at the software level, and then only diagnostics at the service center will help.

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

If your Redmi 9 supports you NFC, The next step is to turn it on in the settings. It takes less than a minute, but there are a few nuances to be aware of.

Open Settings and go to Connect and Sharing (or Wireless Networks depending on version) MIUI). Find a point here. NFC And you move the slider to the right, and when you activate it, you'll see a badge next to you. ✓, And in the status bar, the icon. NFC.

The default smartphone will use NFC To unlock all features, including payments and data transfer, you need to enable Android Beam (in newer versions). MIUI It can be called Data Transfer. This option is also in the settings. NFC.

After inclusion NFC Nothing's going on, check it out:

1. Updated firmware (minimum version) MIUI — 12.0.3).
2. Are there any third-party shells (e.g. launchers) that can block the function?
3. Is the power saving mode activated - it sometimes turns off NFC charge-saving.

Is NFC enabled in the settings?

Is Android Beam activated?

Is the firmware updated to the latest version?

Is the energy saving mode turned off?

Is there an application for payments installed (Google Pay, SberPay, etc.)

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⚠️ Note: Some firmware for Redmi 9 (especially global ones) NFC If payments do not pass, try changing the region in the settings for Russia or Europe.

Configure contactless payments via NFC

Principal application NFC — It's a smartphone payment, and on Redmi 9, it works through Google Pay, SberPay, Mir Pay, and other services, but before you pay, you have to set up the system correctly.

First, make sure that your smartphone has a payment app (like Google Pay), download it from Google Play if you haven't already.

1. Open the app and click Add the card.
2. Scan the map or enter the data manually.
3. Confirm the addition via SMS or push notification from the bank.
4. If necessary, set the payment by default.

After adding the card, check that NFC It's on and the smartphone is unlocked (on a locked screen, payments may not work). Bring Redmi 9 to the terminal at a distance of 2-4 cm, the payment should be automatic. If the terminal gives an error, try it:

• 🔄 Reboot your smartphone.
• 💳 Remove and add the map again.
• 📱 Change the payment app (e.g. from Google Pay to SberPay).
• 🔧 Update the firmware to the latest version.

Important: On some terminals (especially older ones), Redmi 9 may not work the first time. NFC In these cases, it helps to re-plug or turn the smartphone a little bit.

Google Pay

SberPay / SberBank Online

Mir Pay

Others (Apple Pay, Samsung Pay, etc.)

I do not use contactless payments.

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Transfer of files and data through NFC Android Beam

Besides payments, NFC Redmi 9 can be used to quickly transfer files between devices, and this requires the Android Beam protocol, which works on the principle of "touching" two smartphones.

To transfer a file (photo, contact or link):

1. Enable NFC and Android Beam on both devices.
2. Open the file you want to send (such as a photo in a gallery).
3. Bring Redmi 9 back cover to another smartphone (distance – 1-2 cm).
4. Wait for an audible signal or vibration, which means that the connection is established.
5. Click on the screen to confirm the transmission.

Important: Android Beam only works between Android 4.0 and higher devices. The transfer speed is low (about 400 Kb/s), so it is better to use Wi-Fi Direct or Bluetooth for large files.

If the transfer does not start, check:

• 🔋 Battery level (at low charge) NFC may be off).
• 📱 Device compatibility (some brands block Android Beam).
• 🔄 Reboot both smartphones.
• 📂 File size (maximum for Android Beam is about 1 GB, but in practice it is better to transfer files up to 100 MB).

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If Android Beam doesn’t work, try using Send Anywhere or Xender – they’re a combination of the two. NFC For initialization of connection and Wi-Fi Direct for fast data transfer.

Use of the NFC smart-device

NFC Redmi 9 can be used to control a smart home, for example, to unlock doors, turn on lights or run scripts. NFC-tags (you can buy them on AliExpress or in electronics stores) and an automation application, for example NFC Tools or Tasker.

Example of setting up a smart switch:

1. Buy it. NFC-mark (e.g., marker, NTAG213 or NTAG215).
2. Install the app NFC Tools and open it up.
3. Select to write down → Add a record. → Reference.
4. Enter. URL to control the device (for example, a link to enable the lamp in the Mi Home).
5. Hold the smartphone to the tag and wait for the recording.
6. Place the tag in a convenient place (such as at the door).

Now, when you touch Redmi 9, you'll do the action you want to do.

• 🔑 Keyless access to the house (with a smart lock).
• 💡 Lighting control (on/off lights by touch).
• 🎵 Start playlists or scripts (e.g., "Evening Mode").
• 📱 Quick Wi-Fi connection (by tagging network data).

For complex scenarios (such as action chains), use Tasker with the plugin. NFC Task Launcher. This will allow you to run multiple commands at a single touch.

⚠️ Note: Some smart devices (e.g., Xiaomi Mi Smart Door Lock) require tethering NFC-If the tag is not recognized, check its compatibility in the documentation for the device.

Solving problems with NFC Xiaomi Redmi 9

If NFC Your Redmi 9 is unstable or not included at all, the causes can be both software and hardware.

1. NFC is not included in the settings

• Check if your model supports NFC (see section above).
• Update the firmware to the latest version of MIUI.
• Reset network settings: Settings → System → Settings Reset → Reset settings Wi-Fi, mobile network and Bluetooth.
• If nothing helps, complete a full reset to factory settings (don’t forget to back up!).

2. NFC is turned on but not working

• Make sure the antenna is in place. NFC not damaged (it is located under the upper part of the body).
• Try turning off the energy saving mode.
• Check if it's blocking. NFC cover or sticker (especially metallized).
• Install an alternative software for NFC, for example NFC Check to diagnose the problem.

3.Contactless payments problems

• Make sure that the banking app supports your card and region.
• Try adding a card to another service (for example, instead of Google Pay, use SberPay).
• Check if your bank is blocking payments (sometimes a call for support is required).
• If the terminal does not see the smartphone, try to bring it to another part of the case (antenna). NFC may be displaced).

If none of these methods helped, it may be faulty. NFC-In this case, go to Xiaomi's service center. NFC Redmi 9 usually does not exceed 1,500–2,000 rubles.

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Before visiting the service center, check if there are any problems with the NFC Firmware is often used by flashing through Fastboot or installing custom recovery (e.g., custom recovery, TWRP) clean-fitting MIUI.

Hidden functions NFC Xiaomi Redmi 9

In addition to standard capabilities, NFC Redmi 9 can be used for non-obvious tasks. Here are some life hacks that few people know about:

1. Quick Wi-Fi connection

Using the application NFC Tools can be tagged with your Wi-Fi network data (SSID Now, to connect guests, just put their smartphone to the tag, the connection will be established automatically.

Automatic initiation of regimes

Set a label to start certain actions, such as:

• 🚗 Turning on Driving Mode when touching a mark in the car.
• 📵 Transition to silent mode at work.
• 🎧 Launch your favorite playlist when touching a tag on the nightstand.

3. Identification in annexes

Some services (e.g. Yandex Go or Delimobil) allow you to use the NFC You can quickly log in to rental cars, and you can just tie the tag to your account and touch it with your reader.

4. Transportation charges

In some cities (Moscow, St. Petersburg, Kazan), Redmi 9 can be used to pay for the fare by subway, buses and trams through Troika or Strelka.

1. Install the application My travel (for Moscow) or Sbercard.
2. Attach a bank card or transport card.
3. Bring the smartphone to the validator at a distance of 2-3 cm.

5. Games and entertainment

There are games that use NFC, for example Pokémon GO (interacting POI) Or Amiibo (for Nintendo Switch). Redmi 9 can emulate some tags, but it requires root access.

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If you use it often NFC For payments, add the feature on/off label to the home screen. To do this, hold your finger in the free space of the screen. → Widgets → find NFC And drag it to the desktop.

FAQ: Frequent questions about NFC on Xiaomi Redmi 9