A modern smartphone is impossible to imagine without contactless communication technology, and the Xiaomi Redmi Note 9 Pro is no exception here. Many users buy a device for convenient payment of purchases in one touch, but are faced with the fact that the feature does not work out of the box or hidden in the depths of the menu. Activation. NFC-The module is the first step to using a smartphone as a digital wallet.
The switching process can be confusing because of the features of the MIUI shell, which is constantly updated and changes the location of interface elements. In this article, we will discuss in detail where to look for a switch, how to set up security and what to do if payment does not pass.
We will also touch on regional versions of the firmware, as this is a critical nuance for owners of the Redmi Note 9 Pro. The presence or absence of a communication module often depends on the market for which the device was manufactured, and understanding these differences will help to avoid unnecessary panic and unnecessary trips to the service center.
Search and activation of the communication module in the system
The first thing a Xiaomi owner needs to do is make sure that the module is physically present and not software-enabled. Unlike some other brands where the switch is always in sight, in MIUI, the path to settings can vary.
Find the gear icon on your desktop and scroll through the list to Connect and Sharing. This is where all the tools for interacting with the outside world are concentrated. If you use the older version of the shell, this section may be simply called Additional Features or be in the Wireless Network category.
Inside the menu, find the NFC and move the slider to the active position. Once turned on, the system can request confirmation or suggest selecting the default application for processing payments. This is an important step, since without the selected service, payment in the terminals will not work.
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If you donβt find the NFC item in the Connection and Sharing menu, search by settings: type the word βNFCβ into the search bar at the top of the settings screen.
After activation in the notification curtain (swipe from top to bottom), the corresponding icon should appear, which indicates that the antenna of the smartphone is ready to work, and now you can start more subtle security settings and card binding.
Google Pay and Alternative Services
Just turn on the module is not enough β you need to configure the software part for transactions. In Russia and several other countries, standard Google Pay (now Google Wallet) may have restrictions, so users often turn to alternatives like Mir Pay or banking applications with the function of tokenization.
To work properly, you need to install the right application from the Play Market or AppGallery and add a bank card. In the process of adding, the system will verify through SMS or a bank application. It is important that a reliable method of protection is installed on the lock screen: a pin code, a pattern lock or a fingerprint.
- π± Open the settings. NFC Select βContact PaymentsΒ».
- π³ Install the desired application (such as Mir Pay) as the default primary.
- π Make sure the screen is unlocked when you reach the terminal.
The security of transactions is ensured by tokenization: real card data is not transferred to the terminal, instead using a one-time code.This makes using the Redmi Note 9 Pro for payment even safer than using a physical plastic card.
βοΈ Checking readiness for payment
Emulation mode and work with transport maps
Functional NFC-The Xiaomi Redmi Note 9 Pro is not just about payment, but can emulate access cards, office passes and transport cards (HCE), It allows the phone to pretend to be a plastic card.
In the settings of the module, you can often find the item "Secure Element" (Secure Element). For maximum compatibility with banking terminals, it is recommended to choose the option HCE Wallet. If you use specific corporate pass, you may need to choose between SIM-card if the operator supports this function, but in 95% of cases, it is necessary to pay for the card. HCE.
| Setup parameter | Recommended value | What is used for |
|---|---|---|
| Positioning of the antenna | Centre (automatically) | Optimal signal for terminals |
| Security element | HCE Wallet | Payment via Google/Mir Pay |
| Tap & Pay | Included. | Automatic start of payment |
Also worth noting is the quick access to maps feature, which in some versions of MIUI can be configured so that when the screen is turned off, double pressing the volume button or a special command calls the card to pass through the turnstile, which saves rush hour time.
β οΈ Note: When using emulation of transport cards, make sure that the balance on the virtual card is replenished in advance, since at the time of passage through the turnstile, there may be no connection with the bank.
Problems with regional versions and firmware
One of the most common reasons why NFC doesn't work on the Redmi Note 9 Pro is the regional affiliation of the device: Global (Global) and Chinese (CN) versions have differences in software and sometimes hardware. In Chinese firmware, the module can be disabled software for markets where the technology is less common.
If you bought a phone from abroad or reflashed it to the Chinese version of MIUI, you might find that there is no NFC item on the menu, and simply turning on the slider won't help, either needing a global ROM or using special patches, which requires skill.
How to check the region of the device?
It is also worth considering that when flashing from Global to Global (for example, from Indian to European), problems usually do not arise, but when switching between different branches (Stable to Developer), security certificates may fly, which will block the possibility of payment.
To test the performance of iron, you can use a diagnostic menu. Type the code ##6484## in the phone app to get into the engineering menu. NFC-module, bringing to the back of the phone with a tag.
Diagnostics of malfunctions and software failures
There are situations when the module is on, the settings are correct, but the terminal in the store does not respond to the smartphone. First of all, you need to exclude the trivial reasons: the presence of a thick case with a metal plate or magnetic fastener.
If the case is not involved, try resetting your network settings. This won't delete your personal photos or contacts, but will return your Wi-Fi, Bluetooth, and NFC settings to factory values. The path to this feature is usually in Connection and Sharing β Reset Wi-Fi, mobile, and Bluetooth.
- π Reboot your smartphone β it solves 80% of the temporary software glitches.
- π΅ Turn off flight mode and turn it on again to restart radio modules.
- ποΈ Clear the application cache through which payment is made (Settings) β Annexes β All applications β Mir Pay/Google Pay β Clear the cache).
In rare cases, the problem is to update the system. MIUI Driver conflicts may occur if the update has stopped working. NFC-controller, it makes sense to wait for a patch from the developers or roll back on the previous version of the firmware.
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If resetting the network settings and rebooting didnβt help, and the NFC test is successful on the engineering menu, the problem is most likely on the payment system or bank side, not the phone itself.
Influence of covers and accessories on the signal
Physical obstacles are the enemy of wireless communication. The NFC antenna in the Xiaomi Redmi Note 9 Pro is located at the top of the back cover, next to the main camera module. If you use a case with a metal insert, magnetic latch or just a very thick shock-proof case, the signal range can be reduced to zero.
Magnetic rings for car holders pasted on the back can also cause interference, although to a lesser extent than solid metal.It is recommended to remove the phone from the case when you first try to set up or pay large sums to be sure of the success of the operation.
There are special cases with a cutout for the antenna or made of materials that do not shield the signal (silicone, thin plastic, leather), the use of such accessories ensures the stable operation of all wireless interfaces of your device.
Why does the phone vibrate but the payment doesnβt go through?
Can I transfer photos via NFC to Xiaomi?
Does the NFC battery run out?
Concluding recommendations
Configuring contactless payment on the Xiaomi Redmi Note 9 Pro is a process that requires attention to detail, but opens up huge opportunities for convenience. Proper configuration of Secure Element and selection of the right application ensure stable operation in all conditions.
Remember to update your banking applications and the MIUI system regularly, as security protocols are constantly being improved. If you encounter a unique problem that standard methods have not solved, you can always contact an authorized service center to diagnose the hardware.