How to use NFC on Xiaomi Redmi 8T: Complete Guide

Modern smartphones have long since ceased to be just devices for calls, becoming universal tools for solving everyday tasks, and Xiaomi Redmi 8T is no exception. One of the most popular features that significantly simplifies the life of the owner is the NFC module (Near Field Communication), this technology allows you to exchange data, use the phone as a bank card or electronic key with just one touch.

Owners of budget and mid-budget models often face confusion in the settings of the MIUI interface, where options can be hidden or named obscurely. In this article, we will discuss in detail all aspects of working with wireless communication on your device. You will learn how to turn your gadget into a payment tool, transfer large files without using the Internet and connect smart accessories. It is important to understand that for all the described functions, the NFC module must be physically built into your device, since it cannot be added software.

What is NFC and why is it needed in Redmi 8T?

NFC is a wireless standard that works very short distances, usually up to 10 centimeters. Unlike Bluetooth, it doesn't require a complex pairing procedure. It works by creating an electromagnetic field that activates the chip on close contact. In the Redmi 8T, this module is integrated into the top of the case, allowing you to conveniently bring the phone to payment terminals or readers.

The main advantage of the technology is that it's versatile and responsive. You don't have to open apps or look for settings every time you want to do an action. You just unlock the screen and bring the device to the reader. This is especially true in situations where your hands are busy or you have to quickly go through the turnstile in the subway. The connection speed is set in less than 0.1 seconds, which makes the process almost instantaneous.

Also, NFC consumes minimal battery power, and even if you keep it on all the time, it doesn't cause a noticeable battery drain during the day, it only activates when it interacts with an external device, and the rest of the time it's in sleep mode, making it safe and energy efficient for daily use in conjunction with the Android operating system.

Verification of module availability and activation of function

Before you start setting up, you need to make sure that your specific modification of the Xiaomi Redmi 8T is equipped with the necessary chip. Global versions of this smartphone usually support communication standards, but in some regional builds the functionality may be limited. To check the availability of equipment, you can use system settings or third-party utilities. If the module is present, the system will allow you to turn on the appropriate switch.

To activate the feature, go to the main settings menu of your device. Find the Connections and Sharing section or simply Additional Features, depending on the version of the MIUI firmware. Inside the menu, you will see the NFC item. Move the slider to the On position. If this item is not on the list, your model may not support the technology hardware.

There's also a quick way to activate through the control panel. Swipe from top to bottom across the screen to open the notification curtain, and find the NFC icon. If the icon is missing in the visible part, tap on a pencil or edit button to add a shortcut to the quick access panel. This will allow you to turn the module on and off in one touch without diving deep into the menu.

Contactless Payment for Google Pay and Mi Pay

One of the main reasons for NFC’s popularity is the ability to pay with a smartphone, which Redmi 8T uses Google Pay and, in some regions, Mi Pay. The setup process starts with adding your credit card to the payment system app. Make sure your bank supports card tokenization and contactless payments.

After adding the card, you need to install the default application for making payments. NFC and find Security Item or Contactless Payments. From the list that opens, select HCE Wallet or Google Pay itself.This is a critical step, as when choosing the wrong service, the terminal may not see the phone or try to read data from the phone. SIM-map.

⚠️ Note: When setting up contactless payment, make sure that your device does not have superuser (Root) rights installed and the bootloader unlocked. Banking applications and payment services can block work on modified firmware for security reasons.

You don't even have to open an app to make a purchase. Just unlock your smartphone screen (pin code, fingerprint, or Face ID) and bring the top of the case to the terminal. The device will determine that a transaction is required and pass the encrypted card token. Once you make a successful payment, you will hear a distinctive sound and a notice of debiting will appear on the screen.

File transfer and data exchange between devices

Besides payment, the NFC module is often used to quickly transfer files between two smartphones. Although the technology itself has a low data rate, it serves as an excellent trigger for running faster protocols like Android Beam (on older versions) or Nearby Share (on newer ones).

The transfer process is simple and intuitive. Open the file you want to send (such as a photo in a gallery or a contact in a phone book). Bring the back panels of two Xiaomi phones close to each other. If you successfully connect the devices, you will emit a vibration signal, and a request for confirmation of the transfer will appear on the screen.

It's worth noting that for large amounts of data, such as 4K video or multi-gigabyte archives, it's better to use a direct Wi-Fi connection or cloud storage. NFC is only a means of authorization and initiation of a connection, "handshake", after which data can be transferred over another channel. However, for business cards and links, this is the ideal option, not requiring passwords or searching for devices in the list.

Work with NFC-tagging and smart scripting

Redmi owners 8T They can use technology to automate everyday tasks by using NFC-These are small sticker chips that you can program to do certain things when you touch your phone, for example, by putting your phone on a tag on your bedside table, your smartphone can automatically go into silent mode and turn on the alarm.

To program tags, you can use standard system tools or third-party applications like NFC Tools. You can tag a link to a site, text, contact details or a smart home command, which turns your smartphone into a universal remote control. For example, a tag on your desktop can run a work application and turn on Wi-Fi, and a tag in your car can run the navigator and turn on Bluetooth.

Using tags is particularly effective when you're using a Smart Home system, and you can create a "I'm at home" script that will activate when you touch the tag at the front door, and the smartphone will automatically send a command to turn on the lights, check the security cameras, and launch the music player, eliminating the need to manually adjust the environment every evening.

Resolving and remediation of malfunctions

Despite the reliability of the technology, users sometimes face problems in the operation of NFC on Xiaomi Redmi 8T. the situation is that the phone stops seeing payment terminals or tags. Often the reason lies in a thick protective case, especially if it contains metal elements or magnets.

Another common problem is application conflict: If you have multiple map emulation or tagging apps installed, the system may not know which one to use by default, in which case you need to clear the default settings for the NFC application under "Applications" -> "All Apps" -> "NFC" -> "Default Launch" -> "Delete Default Settings".

⚠️ Warning: If your phone has been physically hit or dropped, and the module NFC It's stopped working, the problem could be hardware. NFC redmi 8T integrated into the plume or back cover and its damage requires replacement of components in the service center.

Also worth checking is that the battery is not critically drained. In power saving mode, some Xiaomi features can force background services, including communication modules, to save charge. Try turning off the energy saving mode and restart the device. If the problem persists, you may need to reset the network settings.

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When buying a new Redmi 8T case, choose models without metal inserts and magnetic buckles on the back so as not to block the NFC signal and wireless charging (if supported).

Safety of use NFC-technology

There are several layers of security for data when using NFC. First, the shortness of the session and the short distance make it extremely difficult for attackers to intercept data; second, when you pay with a card, the phone does not transmit your real account number, but generates a one-time token, and even if hackers intercept this signal, they will not be able to use it again.

However, there are risks associated with malicious tags: Attackers can place a tag in a public place that, when read, prompts you to click on a link to a phishing site or install a malicious application. Always read the notifications that appear on the screen after touching an unknown tag, and do not confirm actions that you are not sure about.

For maximum protection, it is recommended to turn on the NFC module only when you really need it. Although the power consumption is minimal, constant activation increases the attack surface. Use widgets or automation scenarios to turn on the module only at the right time and in the right place, for example, only when you are near a store or a transport terminal.

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Regular updates to MIUI and security applications ensure that the latest security patches for the NFC module and payment systems are available.

Frequently Asked Questions (FAQ)