You are trying to pay for the purchase of Xiaomi smartphone through NFC, Is the terminal not responding? Or is the phone no longer reading tags when everything used to work (NFC) on Redmi devices, POCO or flagship series Mi/Xiaomi β common phenomenon, but in 90% They can be treated on their own. In this article, we'll discuss the problems:
β why NFC It may suddenly stop working (including hidden settings) MIUI);
How to check what exactly is the problem: in the software, antenna or firmware;
β Step-by-step instructions for models from Redmi Note 10 Xiaomi 14 Ultra, including devices with MIUI 14/15;
When to contact the service center, and when you can do without repair.
Letβs warn you right away if your Xiaomi smartphone has never supported you. NFC (Like Redmi. 9A or POCO M3), There's no manipulation, because the module is not physically available. Check the specifications of your model on the official mi.com website.
1. Programmatic reasons: why NFC shut down
In 70 percent of cases, the problem is system settings or software conflicts, and let's start with the obvious one: checking the module's activation.
V MIUI path NFC It may vary depending on the version of the shell. for most modern models (Xiaomi). 13/14, Redmi Note 12, POCO F5) Do this:
- Open Settings β Connection and Sharing.
- Tap on point. NFC (on some firmware it is hidden in Additional functions).
- Activate the slider Use NFC.
- Make sure that the No Contact (for payments) item is enabled.
If the paragraph NFC There is no menu at all, that could mean:
- π± The model doesn't support NFC (For example, budget Redmi A1 or POCO C40).
- π Regional firmware without support NFC (It is important for devices purchased in China).
- π οΈ No driver after unofficial firmware.
Another common cause is conflict with MIUI Optimized (system optimization) to check this:
- Go to Settings. β The phone.
- Tap 5 times on the MIUI version to activate Developer Mode.
- Back to Settings β Additionally. β For developers.
- Find MIUI Optimization and turn it off.
- Reboot the phone.
β οΈ Attention: Disconnection MIUI Optimization can cause some functions to function unstable (such as gestures or animations). NFC earned, but there are lags β return the setting back and try other methods.
2. Resetting settings NFC and cache
If the module is on but not responding to tags or terminals, try resetting it.
- π³ Payment errors via Google Pay or Mi Pay;
- π Hanging around when reading labels;
- π΅ Message "The device does not support NFC".
Instructions for discharge:
- Open Settings β Applications β Application Management.
- Slip on the three dots in the upper right corner and select Show all processes.
- Find it. NFC Service (or NfcNci on newer versions) MIUI).
- Click Warehouse β Clear the cache and Clear the data.
- Reboot the phone.
Clear the cache NFC Service
Clear the data NFC Service
Reboot the phone
Checking with another label/terminal-->
If after discharge NFC still not working, check permissions for apps using the module (e.g. Google Pay):
- Go to Settings. β Annexes β Google Pay.
- Select Permissions.
- Make sure it's on. NFC and the Warehouse.
On some firmware (e.g, MIUI 13 for Xiaomi 11T) You may need to completely reset your network settings:
- Settings β SIM-maps and mobile networks β Resetting network settings.
- Confirm the action and restart the device.
3. Problems with firmware and updates
Failures in operation NFC Often associated with unstable versions MIUI or unofficial firmware, such as after updating to MIUI 14 Many Redmi Note 11 Pro users complained about missing NFC settings.
To check the relevance of the firmware:
- Go to Settings β About the phone β System update.
- If an update is available, install it.
- After installation, be sure to restart the phone.
If the update does not help or NFC Disappeared after it, try to roll back to the previous version MIUI. For that:
- π Download stable firmware for your model from the official website.
- π Move the file to the phoneβs root folder (not to the folder!).
- π Go to Settings. β The phone. β Updating the system β Three-pointed β Select a firmware file.
β οΈ Attention: Firmware rollback erases all data! pre-reverse through Settings β Additionally. β Backup and reset.
For devices with an unlocked bootloader (bootloader), you can try flashing custom recovery (for example, TWRP) and install a clean version MIUI. However, this is risky β if you make a mistake, the phone can turn into a brick".
How to check if the bootloader is unlocked?
4. Hardware malfunctions: when diagnostics are needed
If software methods fail, the problem may lie in physical damage. NFC-module or antennas: typical signs of hardware malfunction:
- π± NFC It does not work even after resetting to factory settings;
- π The phone does not respond to any tag or terminal;
- π οΈ In the settings NFC The module is switched on, but after a second it is switched off again;
- π₯ Before the breakdown, the phone fell or came into contact with water.
In Xiaomi devices NFC-The antenna is usually located at the top of the back cover (near the camera:
- π§ When the phone is not properly disassembled;
- π¦ When water is injected (even if the phone is waterproof");
- π¦ When you are in a tight squeeze (for example, in a pocket of jeans).
It is difficult to check the antenna yourself, but you can try the test using the engineering menu:
- Please dial the phone application ##4636##.
- Select Phone Information.
- Scroll down to the NFC block.
- If statuses NFC hardware or NFC Firmware marked as Unavailable β the module is defective.
Another way of diagnosis is to check through ADB (for advanced users):
adb shell dumpsys nfc
adb shell service call nfc 5If the answer has lines with error or failed, the problem is hardware.
| Symptoms. | Probable cause | Decision |
|---|---|---|
| NFC is activated but not working | The antenna is damaged. | Replacement of antenna in the service (~1500β3000 β½) |
| Item NFC fade away | There is no driver after the firmware | Check the official one. MIUI |
| NFC only works after restarting | The conflict with MIUI Optimization | Disable optimization (see section 1) |
| Phone doesn't read tags, but payments work | Defective Secure Element chip | Diagnostics in the service |
π‘
If NFC It stopped working after the battery was replaced, check if the master has damaged the antenna plume.
5 Conflicts with covers, films and accessories
Few people know, but metal covers or magnetic holders can block the signal. NFC. It's related to the fact that:
- π§² Metal shields radio signal at 13.56 MHz;
- π Magnets in covers can magnetize antenna;
- πΆ Thick cases (especially with card pockets) increase the distance between the phone and the terminal.
To check the effect of the cover:
- Remove the case and try to pay/read the tag again.
- If NFC earned - problem in the accessory.
- Try using a case without metal inserts (for example, silicone).
Also check the protective glass: some models with a thick layer of glue (for example, 3D-glass may interfere with the signal. Try to lift the glass in the area NFC-antennas (usually near the upper chamber).
If you are using wireless charging, make sure the charger is not too close to the charger. NFC-The magnetic field of charging can interfere with the antenna during payment.
6.Problems with SIM-card and eSIM
In some Xiaomi models (e.g. Xiaomi) 12T or Redmi K50) NFC for payments tied SIM-If it's a map:
- π± You've recently changed. SIM-map;
- π I've been going physical. SIM eSIM;
- π¦ Bank tied the card to the old one SIM β
β payment NFC They may stop working.
To check the binding:
- Open Google Pay or Mi Pay.
- Delete the attached card.
- Re-introduce it following the instructions of the bank.
- If there is an error "Device is not supported" - contact the bank for reconfiguration.
An eSIM may require an update of the operator profile:
- Go to Settings. β SIM-maps and mobile networks β [Your eSIM].
- Put a profile update.
- Reboot the phone.
β οΈ Note: Some banks (for example, Sberbank or Tinkoff) are blocking NFC-shift-payment SIM-If you're a security card, you'll have to call the bank.
7. Features of Xiaomi models: what you need to know
Some Xiaomi devices have unique βchipsβ (or bugs) in the work NFC. Letβs look at the most common ones:
| Model | Feature NFC | Decision |
|---|---|---|
| Redmi Note 10/11 Pro | NFC may be removed after the update MIUI 13/14 | Remove the firmware or reset the settings |
| POCO F3/F4 | Conflict NFC Game Turbo | Turn off Game Turbo in the settings |
| Xiaomi 12/13 Lite | Weak signal. NFC slim-hull | Use without a cover or approach the terminal at an angle |
| Black Shark 4/5 | NFC play-off | Get out of the game mode before paying |
For flagship models (Xiaomi 13 Ultra, Mix Fold 2) the problem with the hot is relevant" NFC β The module can shut down when the phone overheats to avoid this:
- π‘οΈ Don't use it. NFC Immediately after intensive tasks (games, video shooting);
- π Close the background applications before paying;
- βοΈ Avoid direct sunlight on your phone.
If you have a Xiaomi with a double SIM-A card (for example, Redmi Note 12 Pro)+), Check if there is any conflict. SIM-Some users have noted that NFC only works with SIM first-slot.
8.When to contact the service center
If you have tried all the methods in the article, but NFC It's still not working, it's time to call in the lab:
- π§ NFC It does not turn on even after resetting to factory settings;
- π‘ In the engineering menu, the status of the module is Unavailable;
- π₯ The phone fell or came into contact with water before breaking down;
- π The module works, but only after multiple reboots.
Cost of repair NFC Xiaomi is dependent on the model:
- π° Replacement NFC-antennas: 1500β3000 β½;
- π° Replacement NFC-chip: 3000-5,000 β½;
- π° Diagnostics + firmware: 1000β2000 β½.
Official Xiaomi service centers in Russia:
- π List on the official website;
- π οΈ Authorized partners (e.g. Communications Service or M.Video).
β οΈ Warning: Before visiting the service, back up your data! NFC You may need to completely reset your phone.
π‘
If the phone is warranty, do not try to repair it. NFC You can't afford to pay your own warranty.