How to check the work NFC Xiaomi smartphone without a payment terminal: the full guide

Technology NFC (Near Field Communication has long been an integral part of Xiaomi smartphones, but many users still do not know how to check its performance without a payment terminal. This is especially true for owners of used devices or after software failures, when the module may be disabled or damaged, as opposed to checking through payment (where a terminal with support is required). NFC), There are alternative diagnostic methods, from built-in tools MIUI before specialized applications.

In this article, we will discuss 7 ways to check NFC on smartphones Xiaomi, Redmi and POCO You'll learn how to turn on the module in hidden settings, test it with other devices, and what errors indicate hardware malfunctions. NFC In some regions (for example, Redmi Note 11 Pro)+ 5G India – additional steps will be needed.

Before you start checking, make sure your smartphone supports at all. NFC. The full list of Xiaomi models with module can be found on the official website, but there is a quick way: go to Settings → The phone. → Full specifications. Unless there is a clause in the "Wireless Networks" section NFC, So your model doesn't have a chip.

1. Check through the settings menu MIUI

The easiest way to diagnose is to use built-in tools. MIUI. Even if the module NFC disabled, the system will show its presence in the settings.

Open the Settings. → Connection and sharing → NFC. There are three possible scenarios:

• 🔹 The switch is active, the module is on and ready to go. Try to bring the phone to another device with the switch. NFC (for example, a smart watch or a label).
• 🔹 The switch is grey, the module is software-enabled. Turn it on and repeat the check.
• 🔹 No point, or your model doesn’t support it. NFC, or the chip is disabled at the firmware level (relevant for some regional versions).

If there is a switch, but an error occurs when switching on "NFC It doesn’t work, it may indicate:

• 📱 Software failure (solved by rebooting or resetting network settings).
• 🛠️ Hardware malfunction of the antenna (requires diagnosis in the service).
• 🔧 Firmware conflict (relevant after updates) MIUI).

⚠️ Note: Some Xiaomi models (e.g. Mi) 10T Lite) paragraph NFC It may be hidden in the settings. → Additionally. → Wireless. If you can't find it, search by settings (loop icon at the top).

2. Testing with the help of another NFC-device

If you have a second device with support NFC (A smartphone, a tablet, a smartwatch, or even a bank card with a chip, you can check the connection between them, and this method works even without the Internet and does not require installing applications.

Instructions:

1. Turn it on. NFC on both devices (on Xiaomi this is done in Settings) → Connection and sharing).
2. Activate data transfer mode (on Xiaomi – Android Beam or Quick transfer in the same settings).
3. Bring the devices back to each other (antenna) NFC usually located at the top of the body).
4. Wait for the sound signal or vibration – this means that the connection is established.

If no link is established:

• 📵 Check if the cover is blocking the signal (metal covers completely shield the signal). NFC).
• 🔋 Make sure the battery is at least 20% charged – some modules are turned off when the charge is low.
• 🔄 Reboot both devices.

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If you don’t have a second smartphone, use it. NFC-a tag (such as a transport card or a smart home key fob) Hold the phone to the tag — if the module is working, a device detection notification will appear on the screen.

3. Diagnostics through engineering menu (codes) USSD)

Xiaomi’s Hidden Test Menus Allow You to Check the Hardware Status of the Module NFC It's a method that's suitable for power users, because it requires you to input service commands.

Instructions:

1. Open the phone app and enter the combination: ##4636##
2. In the menu that appears, select Phone Information (or Phone Information).
3. Scroll down to the section. NFC (On some of the firmware, it may be called RFID).
4. Press Run. NFC Test (or similar button).

Test results:

⚠️ Attention: On some firmware MIUI (In this case, use the alternative code: ##2846579## → ProjectMenu → RF Test → NFC Test.

4. Testing applications NFC

If the built-in tools don't give a clear answer, third-party utilities will come to the rescue, not only to check the module's performance, but also to show the technical details: the version of the chip, the protocols supported, and even the strength of the signal.

Top.-3 apps:

• 📱 NFC Tools (Play Market) - scans tags, tests data writing/reading, shows the status of the module, suitable for checking communication with other devices.
• 🔍 NFC Check is a minimalist utility that detects in seconds whether a chip is working, displays a controller model (e.g., a computer chip, NXP PN548).
• 💳 Mi Pay (official) – if the app sees the linked cards and offers payment, then, NFC Secure Element is functioning correctly.

How to use NFC Tools:

1. Install the application and open it.
2. Press Check. NFC (or similar).
3. If the module is active, the app will show the green status and chip model.
4. For a deep check, go to Read and bring your phone to any NFC-tag (for example, to a bank card).

If the application makes an error "NFC Not available, it could mean:

• 🔧 The module is disabled in the firmware (you need to reflash the device).
• 🛠️ Antenna damage (frequent problem after falls).
• 📱 Conflict with another application (try clearing the NfcService cache in Settings) → Annexes).

Verification through contactless payments (without terminal)

Yes, you don't need a payment terminal! You can emulate a transaction with another smartphone or even a computer, and this is a method that's good for checking Secure Element, the secure element that handles contactless payments.

Method 1: Using Google Pay and the Second Phone

1. On your Xiaomi, add any card to Google Pay (even with zero balance).
2. On the second phone, install the app. NFC Card Reader (for example, NFC TagInfo).
3. Turn on the second phone the emulation mode of the terminal (in) NFC TagInfo is a Card Emulation).
4. Bring your Xiaomi to the second device – if the payment system is activated (card animation appears), the module works.

Method 2: Online Testing Services

• 🌐 Sites like NFC Tools Online allows you to generate a virtual tag and check its reading.
• 💻 For PCs with NFC-You can use an adapter (for example, in Lenovo or Dell laptops) NFC Shell for terminal emulation.

⚠️ Note: If Google Pay is not able to connect to the error NFC", But other tests are successful, the problem may be in the Secure Element.

6. Diagnostics of hardware malfunctions

If all the software methods have shown that NFC It's time to check the hardware, it's more likely to fail:

• 📡 antenna NFC — a thin conductor that can get damaged when a phone falls or disassembles.
• 🔌 Chip contacts – oxidation or detachment after moisture is ingested.
• 🔋 Power module - problems with the motherboard.

How to check the antenna:

1. Remove the case and inspect the upper part of the case (usually there is an antenna).
2. Bring the phone to the source. NFC-If you're only in a certain position, you're going to move it slowly, and if you're only in a certain position, the antenna is damaged.
3. Light a flashlight on the body - sometimes cracks or bloating indicate physical damage.

Typical signs of hardware failure:

• 🔴 NFC switches on but does not detect the device - antenna problem.
• 🔴 The phone overheats when turned on NFC — module-short.
• 🔴 There's a mistake "NFC “Torn” – damaged cable connecting the chip to the board.

If you suspect a hardware breakdown but are not sure, use the diagnostic codes to check other modules:

#6484## - GPS, Bluetooth and Wi-Fi test (indirectly shows antenna problems).
#64663## – Test of all sensors, including NFC (on some firmware).

7. Features of checking on different Xiaomi models

Not all Xiaomi smartphones work the same way. NFC. Depending on the model and region may differ:

• 📱 The location of the antenna (in Mi 11 it is on the right, in Redmi Note 10 - on the left).
• 🔧 Availability of Secure Element (in) POCO X3 It doesn’t work, so Google Pay doesn’t work).
• 🌍 Regional restrictions (in Indian versions of Redmi) NFC often disabled programmatically).

Compatibility table of popular models:

For models with switches off NFC at the firmware level (for example, Redmi Note 11 Pro)+ 5G for India) there is a workaround:

• 🔧 Install custom firmware (e.g. Xiaomi.eu) where restrictions are lifted.
• 📱 Use Magisk and the module NFC Enabler for forced inclusion.

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If your model does not officially support NFC, The chip is physically present (check through the AIDA64), It can only be activated through unofficial firmware, which voids the warranty!

FAQ: Frequent questions about NFC testing on Xiaomi