Xiaomi’s modern wearables have long since ceased to be pedometers, becoming full-fledged smart devices capable of performing the functions of a payment instrument and pass. Owners of new models often wonder how to activate this feature to leave your wallet at home. The process of adding a card depends on the specific version of the activity tracker and the region in which you are located.
In this article, we will discuss the technical side of the issue, the limitations of the Mi Band 8 NFC and older versions, and explain the difference between payment systems and access cards.
Compatibility check and availability NFC-module
The first thing that users encounter is the lack of a card add button in the menu of a standard bracelet, because the basic versions of Xiaomi fitness trackers do not have the necessary antenna module, the contactless payment or pass emulation function works exclusively on devices with the NFC prefix in the model name.
You can visually tell this from the back of the case or the packaging, and if you have a conventional model, you can't software activate the module because there's no physical chip inside the structure, which is a big part of buying if you're planning to use the gadget for fare or shopping.
⚠️ Attention: Attempts to install third-party firmware on conventional versions of bracelets for activation NFC will not be successful and may result in a complete loss of warranty on the device.
It’s also worth considering that even having a module doesn’t guarantee all maps in your region.The Xiaomi ecosystem has regional limitations, and the functionality available in China may differ from the global version.
Differences between payment and transport cards
Users often confuse the notions, believing that adding any credit card will allow you to pay for purchases in stores around the world.In fact, the NFC technology in Xiaomi bracelets works differently depending on the type of media being emulated.
Global firmware versions, which are pre-installed on devices sold officially outside China, often only support transport cards, meaning that the bracelet can serve as a subway or bus pass if the city maintains emulation standards but cannot be directly linked to Visa or Mastercard for supermarket payments.
For full payment of purchases in most cases requires a Chinese version of the device and binding cards of payment systems UnionPay, Alipay or WeChat Pay. In Russia and CIS countries, direct binding of foreign cards to Mi Pay via a bracelet is currently not working due to restrictions of payment systems.
- 🚌 Transport cards: work as a digital analogue of a plastic ticket.
- 💳 Bank cards: emulation is only possible for a limited number of Chinese banks.
- 🏢 Access cards: the ability to copy the keys from intercoms (depending on the frequency).
So, before you try to set up, it is important to clearly understand what task your gadget should solve. Expectations should correspond to the technical capabilities of a particular firmware modification.
💡
Always check the region of the firmware version in the Mi Fitness app. The Chinese version (CN) and Global version (Global) have different sets of supported maps.
Preparation of the Mi Fitness application and the region
The main management tool is the official Mi Fitness app (formerly Zepp Life), which downloads digital keys to the wristband memory, and it is crucial to properly configure the region within the app itself to work properly.
If you try to add a map from Russia or Ukraine, the list of available operators may be empty. Many users change the region in the app settings to China or Singapore to access an expanded list of transport cards that can technically work in other countries.
The process of changing the region requires re-authorization in the Mi Account. Don't worry, your training data is synchronized with the server and will not disappear, but the application interface can partially switch to English or Chinese.
| Parameter | Global region | Region China |
|---|---|---|
| Interface language | Russian, English | Chinese, English |
| Support for maps | Limited. | Full (UnionPay, transport) |
| Synchronization server | Europe/USA | China |
| Stability of work | Tall. | Possible delays |
After the change of region, you need to restart the smartphone and the bracelet itself, so that the changes come into force at the level of security services.
☑️ Preparations for regional change
Instructions: Adding a transport card
Consider the process of adding a transport card, as this is the most workable scenario for most users. Make sure that the bracelet is connected to the smartphone and is nearby.
Open the Mi Fitness app, go to the device profile, and find the "Map" or "NFC" section. Press the "Add Card" button. The system will prompt you to select the type of card from the available list.
The list can display maps of different cities (Beijing, Shanghai, Singapore), choose a card marked China T-Union or similar, which has the logo of the union of transport cards. These cards are often universal format and can be read by terminals in different countries, although replenishment is possible only through Chinese services.
⚠️ Note: When you add a card, you may be charged the cost of issuing a digital card (deposit), which is often not returned when you delete the card.
After selecting the card, follow the instructions on the screen to pay for the issue, the card will be loaded into the protected element of the bracelet, and you can use it to hold your wrist to the turnstile reader.
If you reset the bracelet to factory settings, the card can be restored, but only on the same device by logging into the same account.
What to do if the card is not added?
Using a bracelet as a key to an intercom
The key emulation feature is particularly noteworthy, with some models, such as the Mi Band 7 Pro and later, allowing you to copy data from physical keycards, which is convenient for accessing an office or an entrance.
The feature only works with unencrypted cards at 13.56 MHz. Old pill keys or encrypted cards cannot be copied by standard means.
To copy, select the NFC Door Card or Create a Map option, then attach the physical key to the back of the bracelet, the device reads the UID and writes it to memory, and the bracelet is then identified by the intercom as the original key.
- 🔑 Frequency: Only 13.56 MHz (Mifare Classic).
- 🚫 Encryption: Data protection keys are not copied.
- 📱 Copying is possible only from a physical card, not from a phone.
This feature is especially popular among residents of new buildings, where modern access systems are installed that are compatible with Xiaomi standards.
💡
The bracelet cannot generate new keys, it only copies an existing one. UID. If the key is not copied, use third-party NFC-bracelet-stick.
Solving problems with adding maps
Despite the simplicity of the interface, users may encounter synchronization errors, the most common problem is the message “Server is busy” or endless waiting, which is due to the fact that Xiaomi servers are geographically far away and the connection may break.
Try clearing the Mi Fitness app cache in your smartphone settings, reinstalling the app and re-binding the bracelet also helps. Make sure your smartphone has geolocation and Bluetooth enabled, as these are mandatory requirements for work. NFC-module.
If a card is added but not read by the terminal, check if it is activated in the list. The bracelet may store several cards, but only one can be active, switching between them is done through the device menu or automatically (smart card function).
⚠️ Note: Do not attempt to disassemble the bracelet to install the antenna. NFC-module soldered into the board, and independent modification is guaranteed to bring the gadget out of order.
In case of persistent errors (persistent failures), it makes sense to contact the support team through the application, specifying the exact model and firmware version.