NFC in the smartphone Xiaomi Redmi 9T: myths, reality and settings

The issue of contactless connectivity in budget and mid-budget devices is often controversial among users.The Xiaomi Redmi 9T, released as a global version of the popular series, has been the subject of a lot of discussion. Owners want to know whether the gadget can be used to pay for purchases in the store with a single touch or to pair quickly with accessories.

The situation with this device is ambiguous due to regional delivery features. Depending on where and when the device was purchased, the hardware stuffing may differ. NFC (Near Field Communication) technology requires a special chip that is physically absent in some versions designed for certain markets.

In this article, we will discuss in detail how to determine the presence of a module in your particular instance, why software inclusion is impossible without hardware, and what alternatives exist for contactless payments.

Technical characteristics and regional differences

The reason for the confusion lies in the marketing strategy of Xiaomi. the Redmi 9T is actually a renamed version of the Redmi Note 9 4G, which was sold in other regions. the Global version, which goes on sale in Europe and CIS countries, often equipped with a full range of wireless interfaces.

However, there are versions labeled as Redmi. 9T (Global), but shipped to certain countries in Asia or Latin America where contactless payment support is not a priority due to the low popularity of the service. NFC-chip is simply not soldered on the motherboard to reduce the cost of the final product.

⚠️ Attention: Availability of logo NFC Unscrupulous sellers can re-adhere packaging or sell devices designed for other markets, impersonating them as a full-fledged global version.

It is important to understand that software to add this feature to a phone where there is no physical module, it is impossible. No firmware or root rights will create a radio signal where there is no antenna and controller, so before buying a used device or when you receive a new one from the store, you should conduct a thorough check.

How to check for an NFC module

The fastest and most reliable way to find out the truth is to look at system settings. Android-based smartphone makers and MIUI shells hide the module switch if it is not detected by the system when it boots. If you don't find the corresponding item on the menu, chances are there's no hardware to work with.

To verify, perform the following actions:

• 📱 Open the Settings app on the main screen.
• 🔍 In the search bar at the top, enter the abbreviation «NFC» or the word “contactless».
• ⚙️ Go to Connection and Sharing (or Additional Features in older versions) MIUI).
• ✅ Look for an active switch switchboard.

If the search doesn't produce results and the Connect and Sharing menu doesn't have an "NFC" option, it's a sure sign that it's not there. You can also use the "curtain" of notifications. Swipe top-down twice to reveal all the fast toggles. If the NFC icons aren't there, add it through the edit button (usually a pencil or three dots).

There are third-party apps from Google Play, like NFC Check or AIDA64, that read hardware information, and they will show the technology's support status, but you should be careful about relying on them: sometimes the program can see the driver, but not the chip itself, if it is damaged or disabled at the BIOS level.

Instructions for activation and configuration

If the test confirms the module, the next step is to set it up properly for comfortable use, and by default, the function can be turned off to save power, although modern chips consume minimal resources in sleep mode.

To activate, go to Settings → Connection and Sharing → NFC. Move the slider to “On” and then the system will prompt you to select the default payment application if you have multiple banking services installed.

An important parameter is the position of the security element. In modern Xiaomi smartphones, card emulation is used through the host controller (HCE). This means that card data is stored in a secure area of the processor, not on a physical one. SIM-However, in some regions or older versions of software, a choice of security element may be required.

Make sure that the right location of the item is selected in the NFC settings section:

• 🔒 HCE Wallet (the main option for Google Pay and Mi Pay).
• 💳 SIM-card (used rarely, only for operator cards).
• 📱 The built-in element (Secure Element).

⚠️ Note: When you reset your phone to a factory setting, all added cards from the payment applications will be removed for security reasons.

Also pay attention to read mode: If you use your phone to scan tags (like a smart home or key fobs), make sure that the read mode is on.This allows the phone to read information from passive tags when the screen is on.

Use for contactless payments

The main function that users are looking for is in-store payment, and the principle is simple: the phone emulates a plastic bank card, requires a stable Internet (at least for initial tokenization) and an unlocked screen.

Depending on your region and the sanctions restrictions, the range of services available may vary, with Google Pay (now Google Wallet) being the global standard, and in Russia, with the departure of international payment systems, direct payment via Visa and Mastercard via Google Pay has ceased to work, but NFC technology continues to be used for other purposes.

Alternative ways of using in the current environment:

• 💳 Payment through QR-codes (SBPs) where NFC not required, but the module can be used for fast application launch.
• 🚇 Transport cards: in many cities you can link the transport card "Troika", "Strelka" or "Planet" in the application "Walk" and pay by phone.
• 🏢 Passes and keys: corporate passes or hotel electronic keys recorded on the phone.

To pay, simply hold the top of the back of your smartphone to the terminal. The antenna in Redmi 9T is located in the top third of the case, next to the camera.

Comparison of Redmi 9T and 9T Pro versions

Often, users confuse the Redmi 9T and Redmi 9T Pro (known in China as the Redmi Note 9 Pro), but they are different devices with different architectures and configurations, and it is important not to confuse them when looking for instructions or accessories.

Below is a table comparing the key wireless characteristics of these models:

As you can see from the table, the base model of the Redmi 9 (without the T prefix) is completely devoid of the NFC module, which is one way to save money. At the same time, the Redmi 9T inherited this feature from the more expensive Note series, which makes it an excellent budgetary.

It is worth noting that in the Pro version, the antenna module can work more stable due to a more powerful processor and better optimization of the RF path, but for the average user, the difference in the speed of reading the card will be invisible.

Problems with work and their solution

Even with a functional module, users can experience outages. Often the problem is not hardware, but software conflicts or physical obstacles. A thick case with a metal plate for a magnetic holder in the car can shield the signal.

If the phone stops seeing the cards or the terminal does not respond to the call:

• 🛑 Remove the protective cover and try again.
• 🔄 Restart the device (full cycle of switching off and on).
• 📡 Check if flight mode is on (it turns off all radio modules).
• 🧹 Clear the app's cache «NFC Service" in the application settings.

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If you use a glass film with a thick layer of glue or a case with a metal insert on the back cover, the range of NFC can be reduced to zero.

In rare cases, resetting network settings helps. This action will return all Wi-Fi, Bluetooth and NFC settings to factory values. Path to function: Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth.

If nothing works and the phone was working normally, it could have caused a hardware plume dump or a chip to fail, requiring a diagnostic at a service center, and replacing the NFC module with a Redmi 9T is difficult because it is often integrated into the charging port plume or back cover.

⚠️ Warning: Do not attempt to disassemble the phone to check the antenna contacts if the device is warranty.Opening the case will result in loss of warranty service.

Frequently Asked Questions (FAQ)

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The main conclusion: Xiaomi Redmi 9T in the global version is equipped with a full NFC, but before using be sure to check its availability in the settings, as regional modifications may differ.