Xiaomiโs NFC module has long since ceased to be an exclusive flagship feature โ even low-end models like the Redmi 9C get this technology. But owners often face confusion about whether the chip is there, whether it is not, whether it works โsomewhat strange.โ In this article, we will examine all the nuances of NFC in the Redmi 9C, from hardware features to turn-based configuration of contactless payments.
Letโs get a good idea: Redmi. 9C It comes in several versions, and not all of them are equipped. NFC-If you buy a phone from hand or in unofficial stores, you're at risk of getting a version without a module. NFC And before you buy it, what do you do if you have a chip that doesn't work? NFC into MIUI, Even the official instructions are silent.
1. whether there is NFC in Xiaomi Redmi 9C: how to check
The first question that worries customers is whether they support Redmi. 9C technology NFC? The answer depends on the region and version of the device. M2006C3MG (The global version โ and it is equipped with NFC-chip NXP PN54T. However, in some countries (for example, in India) the version was supplied. M2006C3MI without NFC.
How do you know if there is NFC on your phone?
- ๐ Look at the box: the sticker with the characteristics should have a logo NFC lettering ยซNFC supportedยป.
- ๐ฑ Check in the settings: go to Settings โ Connections and sharing โ NFC. If there is no point, there is no chip.
- ๐ ๏ธ Use diagnostic codes: type in ##4636##, select Phone Information and find the line NFC. If it's not, there's no module.
- ๐ง Take the phone apart (for advanced ones): NFC-The chip is usually located under the battery next to the antenna module.
If you buy a Redmi 9C with your hands, ask the seller to demonstrate the NFC performance through the Google Pay or Mi Pay app.Fakes or "gray" versions often lack this module despite claims in the ad.
โ ๏ธ Note: Some sellers deliberately mislead by indicating the characteristics ยซNFC: Yes, although it's actually a version for another region. Always check the model by IMEI Mi Verify's website.
Specifications of NFC in Redmi 9C
NFC-module in Xiaomi Redmi 9C chip-based NXP PN54T โ It's the same as the more expensive models of the brand, and it supports all the basic standards:
- ๐ถ ISO/IEC 14443 Type A/B โ for contactless cards (bank, transport, passes).
- ๐ ISO/IEC 18092 (NFCIP-1) โ Data exchange between devices (Android Beam).
- ๐ณ EMVCo โ for payment systems (Google Pay, Mi Pay, SberPay).
- ๐ MIFARE Classic/Ultralight โ for transport cards (for example, "Troika" in Moscow).
However, there are important limitations:
| Parameter | Meaning | Note |
|---|---|---|
| Frequency | 13.56 MHz | Standard for all NFC-device |
| Range of action | 10cm | Real distance is 2-4 cm due to weak antenna |
| Transmission speed | up to 424 kbps | Enough for payments, but slow for files |
| Support for HCE | Yes. | Host Card Emulation for Virtual Cards |
| Hardware. SIM-map | No. | Payments only through HCE or eSE |
The main disadvantage of NFC in Redmi 9C is the lack of hardware Secure Element (eSE), which means that bank cards are stored not in a secure chip, but in a virtual environment (HCE), and some banks (such as Tinkoff or Alfa Bank) can block card binding to such devices due to increased risks of fraud.
3. How to enable and configure NFC on Xiaomi Redmi 9C
If your Redmi 9C is equipped with NFC, you can activate it in a few steps:
- Open Settings โ Connections and Sharing.
- Slip on NFC.
- Move the slider to the on position.
- (Optional) Turn on Android Beam if you want to transfer files.
Contactless payments will require additional setup:
Install Google Pay or Mi Pay from Google Play
Add a bank card to the app
Confirm the card via SMS or push notification
Set up screen unlocking (PIN, pattern lock or fingerprint)
Check the work at the terminal (up to 1000).โฝ test-driven)-->
If NFC is not turned on, check:
- ๐ Battery level (below 5% module may be switched off).
- ๐ฒ Version MIUI (There were bugs in the old firmware NFC).
- ๐ก๏ธ The presence of a cover (metal or thick covers block the signal).
โ ๏ธ Attention: After update MIUI setting NFC Always check if the module is on before using the payment terminals.
4.Contactless payments: Google Pay vs Mi Pay
With NFC in Redmi 9C, you can use two main payment systems: Google Pay and Mi Pay.
Google Pay:
- โ Works with most Russian banks (Sber, VTB, Tinkoff, etc.).
- โ Supports card tokenization (more secure than the original number).
- โ Requires a permanent internet connection for the first card link.
- โ Some banks block cards on devices without eSE (like Redmi) 9C).
Mi Pay:
- โ Built in MIUI, You donโt need to install it separately.
- โ Supports transport cards (for example, Troika in Moscow).
- โ Not all banks (the list is limited).
- โ The interface is less intuitive than Google Pay.
If you need a transport card, set up Mi Pay. Google Pay is more reliable for regular payments, but check with your bank if devices without eSE are supported.
How to add a transport card to Mi Pay?
5.NFC Problems in Redmi 9C and Their Solutions
Even if you have NFC in your Redmi 9C, it can be unstable, and here are some of the most common problems and ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| NFC is not included | Firmware failure | Reset network settings: Settings โ System โ Reset โ Network settings reset |
| Payments don't pass | Bank blocks HCE | Try another card or contact the bank |
| The phone doesn't read tags. | Weak antenna signal | Apply the phone to the label at a 45ยฐ angle |
| NFC shuts down on its own | Battery savings | Turn off NFC optimization in battery settings |
If NFC stopped working after the MIUI update, try:
- Clear the cache of the NFC Service application in Settings โ Apps โ All Apps.
- Reverse the update via Settings โ About Phone โ System Update โ Three Points โ Reverse (if available).
- Install custom software (e.g. Xiaomi.EU) where NFC is often more stable.
โ ๏ธ Note: When using unofficial firmware (e.g. from Xiaomi.EU), payments via Google Pay may not work due to lack of Google certification.
6. Hidden NFC features in Redmi 9C
Most users use NFC only for payments, but the module in Redmi 9C can do more.
- ๐ Automation by NFC-Tags: Buy inexpensive labels (for example, NTAG213) And program them to run scripts, like a tag by the bed might include "Do Not Disturb," and a tag in the car might run Google Maps.
- ๐ฑ Quick Contact Transfer: Touch another smartphone with a NFC, Your card will be sent instantly (works through Android Beam).
- ๐ฎ Connecting game controllers: Some gamepads (e.g, 8BitDo) support the conjugation of NFC โ It is enough to attach the phone to the joystick.
- ๐ Two-factor authentication: Services like YubiKey allow you to use the NFC login to accounts without passwords.
You'll need a Trigger or Automate app to work with scripts, for example, you can configure:
Automation Example: Buying NFC-You tag it and you stick it on the charger. In Trigger, you make a rule: If you're a Trigger, NFC-marker โ Turn on Wi-Fi, turn off your mobile data, start Spotify. Now, when you connect your phone to charge, automatically turn on music.
Another useful feature is card mode, and in the NFC settings, there's a card emulation option that allows you to use your phone instead of:
- ๐ข Office Passes (if the system supports) MIFARE Classic).
- ๐ช Intercom keys (you need to rewrite the data from the original card).
- ๐ซ Tickets for the event (if the organizers use the NFC-validation).
๐ก
If you often lose your mailbox keys, write it down. NFC-You put a tag on the back of the phone, and you just put it in the lock, and the box opens!
7 NFC Security: How to Protect Data
NFC is a convenient technology, but not without risks: a thief can read your card details from up to 10 cm, even if the phone is in his pocket.
- ๐ Turn it off. NFC, It's going to reduce the risk of unauthorized access.
- ๐ก๏ธ Use the covers with RFID-Blocking (they screen the signal).
- ๐ณ Set limits for contactless payments in the banking app.
- ๐ฑ Enable payment confirmation with a fingerprint or PIN-coded in Google Pay.
Be especially careful in public places (metro, cafes, shopping malls) where attackers can use NFC scanners to steal data, signs that your card may have been counted:
- Unexpected write-offs of small amounts (1โ10)โฝ) โ Fraudsters check card activity.
- SMS from the bank about an attempt to log in to an unfamiliar place.
- The phone behaves strangely when approaching metal surfaces (may be a sign of scanning).
If you suspect that the card details have been compromised:
- Block the card in the mobile bank immediately.
- Remove it from Google Pay/Mi Pay.
- Order a reissue at the bank.
๐ก
The NFC in the Redmi 9C does not support hardware protection (eSE), so the risks of fraud are higher than on flagships.Always use additional security measures!