Module NFC In smartphones Xiaomi Redmi Note 9 Pro often becomes the subject of questions: users can not find its physical location, confused with other sensors or even doubt its presence. Although the model supports the technology, the manufacturer does not always explicitly place the antenna and highlight it in specifications. NFC-chip in Redmi Note 9 Pro, how to activate it in firmware and what nuances should be considered when using contactless payments or data transfer.
It is important to understand that Redmi Note 9 Pro came in several versions (for example, for the global and Chinese markets), and not all of them are equipped with NFC. If your version does not have it, you can not add it software - you will need hardware improvements. We will also tell you how to distinguish the support model from the one where the chip is missing, and what to do if the NFC does not work after the system update.
Physical location NFC-chip in the Redmi Note 9 Pro
In the Xiaomi Redmi Note 9 Pro, the NFC module is integrated into the top of the motherboard, next to the camera. However, the antenna that is responsible for receiving / transmitting the signal is located under the back cover and is connected to the metal frame of the device, a typical solution for Xiaomi smartphones, where the antenna is “smeared” around the body to improve reception.
If you disassemble the phone (which is not recommended without experience!), the chip NFC You can find it under the screen, closer to the top left corner (when you look at the front side), and it's a small square element marked with a marking. NXP PN54T Important: in some Redmi Note 9 Pro batches (especially in India) NFC-chip is physically missing, despite specifications.
- 📍 antenna NFC: runs along the upper edge of the back cover, under a plastic case.
- 🔧 Chip. NFC: on the motherboard, next to the display connector.
- ⚠️ Difference from IR-Port: Many people confuse NFC with an infrared port (located at the top end), but these are different modules.
To check for NFC without disassembly, just look at the system settings (more on this below) or try to bring the phone to the payment terminal. If the module is not available, the system will not respond, and the menu will not contain the corresponding item.
How to check if there is NFC in your Redmi Note 9 Pro
Not all Redmi Note 9 Pro versions are NFC-enabled. For example, the India version (M2003J6A1I) was often released without a module, whereas the global version (M2003J6A1G) supports it. To find out exactly if there is a chip in your device, follow the following steps:
- Open Settings → About the phone → All the characteristics.
- Scroll through the list to the Wireless Networks section.
- If there is an NFC item in the list, the module is present.
- Alternatively, type in the settings search for the query "NFC", if there are no results, there is no chip.
You can also use third-party applications, like NFC Tools from Google Play, and when you start it will tell you if the module is detected, and if the application gives an error "NFC is not supported", then your version of the smartphone chip is missing.
How to find out the Redmi Note 9 Pro model by box?
⚠️ Note: Some sellers indicate the presence of goods in the characteristics of the product NFC, This is especially true for devices purchased in the secondary market or in informal stores. Always check for the module yourself!
How to Enable and Configure NFC on Redmi Note 9 Pro
If you have a module on your smartphone, you need to activate it in the settings. By default, NFC is disabled to save battery life.
- Go to Settings → Connections and Sharing → NFC.
- Activate the NFC slider.
- For contactless payments, enable the option of HCE-wallet (if you plan to use Google Pay or analogues).
- To transfer data, activate Android Beam (in some firmware it may be called Fast Share).
Once activated, NFC will run in the background, so to check whether it works, hold your phone to another device with the module on or to the payment terminal, and an NFC icon (usually in the status bar) should appear on the screen.
Enable NFC in the settings
Add a card to Google Pay/Samsung Pay
Activate HCE-purse
Check the operation at the terminal-->
If NFC doesn’t work after you turn on, try:
- 🔄 Reboot the phone.
- 📱 Update the firmware to the latest version (sometimes bugs are fixed in patches).
- 🛠️ Reset network settings (Settings) → System system → Reset → Resetting network settings).
Why NFC May Not Work in the Redmi Note 9 Pro
Even if a module is present in a device, users face problems with its operation, and consider the main reasons and ways to eliminate them:
| Problem. | Possible cause | Decision |
|---|---|---|
| NFC is not included | Outdated firmware | Update MIUI through Settings → System Update |
| Labels don't read. | The antenna is damaged. | Check the case for cracks or contact the service |
| Payments don't pass | Not in the mood. HCE-purse | Activate the option in NFC settings and add the card to Google Pay |
| NFC shuts down on its own | Optimizing the battery | Add NFC to exceptions (Settings → Battery → Optimization) |
A common cause of problems is antenna damage after a phone falls or disassembles. The NFC antenna in the Redmi Note 9 Pro is thin and fragile, easily damaged by careless repairs. If you drop your phone or change the back cover, chances are that the antenna contacts have gone away.
⚠️ Attention: If NFC It stopped working after the update. MIUI, Try to roll back to the previous firmware version. Some builds (e.g, MIUI 12.5 for Redmi Note 9 Pro) had bugs with contactless modules.
Compatibility of NFC in Redmi Note 9 Pro with payment systems
Redmi Note 9 Pro supports the basic standards of contactless payments, but there are nuances:
- 💳 Google Pay: It works without restrictions if enabled HCE-purse.
- 🍎 Apple Pay: Not supported (only on iPhone).
- 🏦 Samsung Pay: Not officially available, but can be used through unofficial APK.
- 🌍 Local systems (Mir Pay, UnionPay): require separate applications and card binding.
To set up Google Pay:
- Install the app from Google Play.
- Add a bank card (Mastercard, Visa, Mir are supported).
- Confirm the card via SMS or client bank.
- Turn on NFC and bring the phone to the terminal (distance up to 4 cm).
Important: Some banks block Xiaomi’s card binding due to security, in which case, contact the bank for help and check if you’re allowed to link to devices with an unlocked bootloader (if you’ve unlocked it).
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Before the first payment through NFC check if your bank supports contactless transactions through Google Pay.Some credit institutions limit the amount of payment without any PIN-code (usually up to 1000-5000 rubles).
How to Use NFC to Transfer Data Between Devices
In addition to payments, the NFC in the Redmi Note 9 Pro can be used to quickly transfer files, contacts or links between smartphones.
- Turn on NFC on both devices.
- Activate Android Beam (some firmware called Fast Share).
- Open the file (photo, contact, page in the browser) that you want to transfer.
- Hold the phones with the back covers to each other (the antennas should "see" each other).
- Wait for the sound signal or vibration – the transmission will start automatically.
Limitations of the method:
- 📁 Only small files can be transferred (up to 1-2 MB).
- 🔋 Quickly drains the battery during long-term use.
- 📱 It only works between Android devices (on iPhone, transfer via NFC impossible).
Wi-Fi Direct or Bluetooth is better for transferring large files, but NFC is convenient for instant exchange of contacts or links.
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The NFC in Redmi Note 9 Pro supports ISO 14443 (Type A/B) and ISO 18092, which allows you to work with most contactless tags and terminals. However, data transfer speeds are limited to 424 kbps – enough for payments, but not enough for video or large documents.