How to use the NFC function of Xiaomi 5 mobile phone?

At this stage:

It can support Alipay, WeChat, QQ, and Xiaomi Wallet to recharge the bus card, or view NFC card information.

The usage method is as follows:

1. Recharge the bus card. Press the power button, turn on the Xiaomi phone, and stay on any page. As long as the screen of the Xiaomi phone is open, it cannot be used when the screen is locked.

2. Turn on the NFC function of Xiaomi 5. Prepare bus cards/bank cards that need to be recharged. To use the NFC function, you must first find "Other Connection Methods" in "Settings" and click to turn on NFC. This function is turned on by default.

3. Recharge. The bus card we recharge must also have a built-in NFC chip. If it does not have it, go to the outlet to replace it. Stick the bus card on the upper back of the phone, and a list of recharge apps will pop up. Users can choose the recharge app themselves. Here Take WeChat as an example.

4. Bind mobile phone number. After following step three, use Xiaomi 5 to write the card information and recharge. Note that the first recharge requires binding a mobile phone number, and payment can be made after binding the mobile phone number.

5. Write data. Don’t think that this is enough to recharge. In fact, after completing the payment, you must not separate the bus card from your mobile phone, because the next step will be to actually recharge the bus card and use the write function to transfer the transaction amount just now. to our bus card.

6. Recharge bank card. The first step is still to put the bank card that supports Quick Pass into the card reading position on the back of Xiaomi 5. Then the payment method will pop up, here we use Alipay as an example. ?Xiaomi 5 has successfully read the card, and then choose to transfer to the card.

7. Recharge completed. Next, just enter the bank card information and transfer amount, and the recharge is completed. After recharging, users who have subscribed to text message reminders will receive a text message indicating that the recharge is successful.

Practical uses

Mobile phone applications

The NFC devices that everyone is familiar with are mainly used in mobile phone applications. The application of NFC technology on mobile phones mainly includes the following five categories:

(1) Touch and Go, such as access control management, tickets and entrance tickets, etc. The user just needs to bring the device that stores the ticket or door control password close to the card reader, which can also be used for logistics management. .

(2) Contact payment (Touch and Pay), such as contactless mobile payment, the user puts the device close to the POS machine embedded with NFC module to make payment and confirm the transaction.

(3) Touch and Connect, such as connecting two NFC devices for peer-to-peer data transmission, such as downloading music, transferring pictures, and exchanging address books wait.

(4) Touch and Explore, users can connect their NFC mobile phones to smart public phones or posters with NFC functions on the street to browse traffic information, etc.

(5) Load and Touch, users can receive or download information through the GPRS network for functions such as payment or access control. As mentioned above, users can send text messages in a specific format to the housekeeping attendant's phone number. Use your mobile phone to control the housekeeper’s access to and from your home.