The modern smartphone has become a versatile tool that replaces many physical items, including bank cards. The Chinese giantโs device owners are often interested in how to activate NFC for instant payments in stores. Contactless technology allows you to make purchases with the simple touch of a gadget to the terminal, which greatly speeds up the process and increases convenience.
However, not everyone knows that just having a communication module does not guarantee the operation of payments out of the box. On Xiaomi, Redmi and Poco smartphones, there are nuances of customization, depending on the region, the version of the firmware and the banking application used.
First, you need to make sure that your device technically supports this standard, and it's usually built into the top of the case, right next to the camera, and if you're planning to use your phone as a means of payment, it's important to set your application priorities right.
Check the availability and operability of the NFC module
The first step before you set up payments is to diagnose the hardware, and not all budget models have the chip, so visual inspection or examination of the box may not be enough, and the most reliable way is to check the system settings or use specialized utilities.
Go to the settings menu of your smartphone. In the search bar, type in the acronym NFC or the full name Near Field Communication. If the search results, click on the link and make sure that the slider is active. The absence of such an item on the menu often indicates that there is no module in this particular model.
- ๐ฑ Open Settings and find the Connections and Sharing section or Additional Featuresยป.
- ๐ Enter the word in the search by settings ยซNFCยป Quickly transition to the desired menu.
- โ Make sure the switch is in the "On" position (blue or green).
โ ๏ธ Note: Some global versions of the firmware MIUI You can call it a HyperOS menu, or you can call it a HyperOS menu, and you can look for sections that are connected to wireless networks or device connectivity.
For a deeper check, you can download the NFC Check app from Google Play, which will show the chipโs technical information, status, and protocols that it supports, which is especially useful if you bought your handset and want to make sure the component is working properly.
Google Pay and Alternative Services
Once activated, you need to choose the application through which transactions will be made, and for a long time the de facto standard was Google Pay (now Google Wallet), which is pre-installed on certified devices, but in the current environment, users often turn to alternatives such as Mir Pay or specific bank applications.
It is important to understand the difference between tokenization of card data in different services: Google Wallet stores virtual copies of cards securely, and banking applications can use their own gateways. To work correctly, you need to add the card to the selected application and undergo the verification procedure through SMS or a bank call.
If you use multiple payment systems, the system needs to specify which one to run by default when you reach the terminal, this is done in the same menu where the communication module itself is turned on. Select "Default payment" or "Contactless payments".
- ๐ณ Download and install your bank or payment system application from the official store.
- ๐ Link your bank card by following the instructions on the screen and confirming the data through the bank.
- โ๏ธ In the settings NFC Select the app you just installed as your primary payment method.
Some banking applications require additional permissions to run in the background, go to the app settings, find the Battery or Energy Saving section, and set the No Limits mode, which will prevent the service from being blocked by the energy saving system.
โ๏ธ Preparation for payment
Using Mi Pay for cardholders of the World
For users whose cards are supported by Mi Pay, the customization process may differ from the standard scenario with Google, which is integrated directly into the MIUI and HyperOS shell, which ensures high speed and stability of connection to terminals.
To start using Mi Pay, open the Security or Mi Credits app (the name may vary by region). Click on the Add Card button and follow the instructions. The system will automatically determine the card type and suggest the appropriate security settings.
One of the key features of Mi Pay is the ability to work even with a dead battery (emergency payment mode), if this feature is supported by a particular smartphone model and chip, and the service often does not require a permanent Internet connection to authorize payment, since the token is generated locally.
| Function | Google Wallet | Mi Pay | Bank's annex |
|---|---|---|---|
| Integration | Systemic | Deep (MIUI) | Separate annex |
| Support for maps | All the basics | MIR, Visa, MC (depending) | Just your bank. |
| Requirements | GMS Certification | Presence of NFC module | Internet (often) |
โ ๏ธ Note: The list of supported banks in Mi Pay may change. Before linking the card, check the current list of partners on the official website of the service or in the application.
When paying via Mi Pay, the phone can request to be unlocked by fingerprint or face directly at the time of access to the terminal, an additional layer of protection that cannot be turned off for the sake of security of your funds.
Solving problems with terminal definition
When the phone is on, the app is configured, but the terminal can't see the device, it's not uncommon, most often because of the physical location of the chip or interference from the case, thick protective cases, especially with metal inserts or magnets, can shield the signal.
Try changing the angle of the phone or the location of the terminal. The chip in Xiaomi smartphones is usually located in the top third of the case, closer to the camera. Drive the phone slowly so that the terminal has time to read the signal.
Signal search location: The top third of the rear panel, next to the main camera module.If physical exposure doesn't work, check for software conflicts. Sometimes third-party card emulation apps or root rights can block access to the security module. Try temporarily disabling others. NFC-service.
- ๐ต Remove the case and try again to pay to eliminate signal shielding.
- ๐ Reboot your smartphone to reset temporary driver errors NFC.
- ๐ฆ Make sure that the card is not blocked by the bank and the limits on transactions are not exhausted.
Itโs also worth checking whether Android Beam (or its equivalent in newer versions of Android) is enabled, although itโs not mandatory for payments, in some older firmware, activating it has affected the stability of the module as a whole.