Modern smartphones like the Xiaomi Mi 8 come with a host of wireless technologies that make everyday life much easier. One of the most sought-after features is NFC, which allows contactless payments, data exchange and fast connections to peripherals. Many owners, when they first encounter the MIUI interface, do not immediately find the switch of this technology on the menu.
Activating the near-touch wireless module is not just about turning on the switch, but also setting the right security settings for using payment services. In this article, we will detail where to look for the right settings, how to prepare your phone for payment in the store, and what to do if the feature is not working correctly, you will learn how to optimize the system for a stable connection.
Before we get to the practical steps, it’s worth noting that the Mi 8 has a robust chip built into the body design. It doesn’t require complex root-rights manipulation or firmware re-flashing to work properly. It’s enough to configure the software part of the Android operating system and the MIUI shell. Let’s start with basic inclusion.
Search and activate the module in the settings
The first step to using wireless technology is to include it in the system menu. In Xiaomi smartphones, these parameters are managed in a separate section, which can be accessed in several ways. The fastest method is to use the notification panel, but for detailed configuration, you better use the full menu.
Go to your device’s Settings and find the Connections and Sharing section (in some versions of MIUI it may simply be called Additional or More) and that’s where all the wireless interface switches, including Bluetooth, infrared, and NFC, are concentrated. Find the appropriate item and move the slider to the active position.
An alternative way to activate it is to use a quick-setting curtain. Swipe down from top to bottom to open the control panel, and find an icon with the NFC logo. If you can't see it on the first screen, tap on a pencil or edit button to add an icon to the active zone, which will allow you to turn the module on and off with a single touch at any time.
Once turned on, the system may request confirmation or suggest setting up additional safety settings. Note that when the module is active, battery consumption may increase slightly, although modern chips only consume energy at the time of reading. To save charge, it is recommended to keep the function off unless you plan to use it right now.
Setting up Google Pay and Payment Systems
The main reason users are looking for a way to activate NFC on the Xiaomi Mi 8 is the ability to contactless payment. To implement this feature, you need to install and configure the Google Pay app (or its current counterpart, such as Google Wallet).
First, make sure that your device has all the necessary system and application updates installed. Open Google Pay, log in to your account and click the add card button. Follow the on-screen instructions: you can scan the card with the camera or enter data manually. The bank will send the confirmation code via SMS for verification.
☑️ Checking readiness for payment
An important aspect is the work of the HCE (Host Card Emulation) function, which emulates a plastic card. In the NFC settings, make sure that Google Pay is the default payment application, and it is also worth checking whether the system blocks the application in the background, as this can lead to an error when bringing the phone to the terminal.
⚠️ Note: If you have previously installed third-party launchers or modified system files, the payment system may refuse to work for security reasons.
Data Transfer Management and Android Beam
In addition to payment, short-range technology is widely used for fast file transfer, contacts and links between devices. On the Xiaomi Mi 8, this feature is often implemented through the Android Beam mechanism (or its more modern counterparts in newer versions of Android). To transfer data to both devices, you need to enable NFC and unlock the screen.
The process of sharing information is as simple as possible: hold the back panels of smartphones to each other at a distance of 1-2 centimeters. If you successfully connect, you will feel a slight vibration, and the screen will be prompted to send a file. This method is especially convenient when you need to quickly throw a photo or contact without searching the Bluetooth menu.
It's worth noting that the speed of data transfer through this channel is lower than that of Wi-Fi Direct, so it's better to use other methods for large video files. However, for small amounts of information, this is one of the fastest ways, without requiring pairing or entering passwords. Just hold the devices and confirm the action.
Why is file transfer not working?
Use of the NFC-tagging
Owners of the Xiaomi Mi 8 can use a module to read and write special programmable tags. Such small chips, pasted on a wall or in a car, can run complex automation scenarios. For example, when you bring a phone to a tag in a car, Bluetooth, navigation and a music player can automatically turn on.
To work with tags, you'll need a special application, like NFC Tools or Trigger, which allows you to read the contents of the chip and write new commands to it, and you can program the tag to turn on the alarm clock, send an SMS to your family, or switch the sound profile to Vibration.
This opens up huge opportunities to create a smart environment without having to buy expensive hardware, just buy a set of inexpensive tags from an online store and customize them to suit your needs, and MIUI is great at monitoring these events in the background.
Solving common problems and errors
Sometimes users are faced with a situation where the module is turned on, but the payment terminal does not respond or the phone does not see the tag. Often the problem lies in the case. If you use a case with metal inserts, magnetic clasp or too thick, it can shield the signal, in which case you need to remove the protection for inspection.
Another common cause of crashes is application conflicts. If you have multiple programs installed to emulate cards or work with access keys, they can interfere with each other. Try clearing the cache of the Google Pay app or reinstall it. Also helps to reboot the device, which resets temporary driver errors.
The table below shows the main symptoms of problems and how to eliminate them:
| Symptoms. | Possible cause | Decision |
|---|---|---|
| Terminal doesn't see the phone | Incorrectly selected application by default | In NFC settings, select Google Pay as the primary |
| Payment error | No Internet or updates | Check the connection and update the application |
| Phone's warming up. | Continuous search of devices | Turn off NFC when not in use |
| Labels don't read. | Google Play service failure | Clear the cache of Google Play services |
⚠️ Warning: Do not attempt to disassemble the body of the Mi 8 to "sweeten" the antenna if the phone has stopped seeing the tags. NFC in this model is integrated into the plume or back cover, and self-repair can lead to a complete failure of the device.
The influence of protective covers and accessories
The Xiaomi Mi 8 design involves the antenna module at the top of the body, closer to the camera. This is important to consider when choosing accessories. Some manufacturers of cases do not take this nuance into account and make thickening precisely in the receiving zone, which critically reduces the range.
Metal modules are particularly sensitive. Card pockets, if they contain a bank card with a chip, can interfere with or block the signal completely. Magnetic car mounts can also adversely affect NFC, so it is better to remove the phone from the magnet before paying in transport.
If you notice that after buying a new case, payment began to go worse or the first time, try to test without it. In most cases, replacing the accessory with a thinner or specialized one (with a marked area for the antenna) solves the problem instantly.
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When buying a Xiaomi Mi 8 case, choose models labeled “NFC Compatible” or thin silicone options that don’t create extra distance between the phone and the terminal.
Frequently Asked Questions (FAQ)
Does NFC work on Xiaomi Mi 8 without internet?
Can I use NFC to unlock locks?
Why did the NFC icon disappear after the MIUI update?
Is it safe to store card data on your phone?
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Main conclusion: For stable NFC performance on Xiaomi Mi 8, it is critical that there are no metal obstacles between the antenna and the reader, as well as the correct default setting of the application.