1. Every time the fingerprint of the mobile phone is unlocked, NFC will automatically open.

It may be that you have chosen a fingerprint that is the same as the quick payment fingerprint of Huawei wallet.

Please open the mobile phone settings, search Huawei wallet fast payment, and choose to close or replace other fingerprints that are not commonly used. For example, your commonly used unlocking fingerprint and Huawei wallet fast payment fingerprint are both fingerprints 1, so I suggest you set the fast payment fingerprint as fingerprint 2.

2. When the phone is unlocked by the power button, sometimes NFC will automatically turn on.

If the shortcut of double-clicking the power button to wake up the card swiping interface is set in Huawei wallet, accidentally double-clicking the power button of the mobile phone when unlocking will trigger this shortcut, and NFC will automatically open.

I suggest you open Huawei Wallet > My > Convenient Settings, and double-click the power to wake up the card swiping interface switch to turn it off.

3. NFC automatically opens when Huawei wallet is opened.

This is because your Huawei wallet application has been set to automatically turn on the NFC function. If you need to cancel, please refer to the following two methods to solve it.

1. Please open the settings, search application management, and find Huawei wallet >; Store > delete data. At this point, if the NFC of the mobile phone is turned on, you need to turn it off manually, and then turn on the wallet again. In the pop-up box, "For your convenience, do you automatically turn on NFC every time you use Huawei wallet?" Select the cancellation time.

2. open the wallet APP and click my > about > stop Huawei wallet service > open button > stop. At this time, if the NFC of the mobile phone is turned on, you need to turn it off manually, and then turn on the wallet again. In the pop-up "For your convenience, do you automatically turn on NFC every time you use Huawei wallet?" Select the cancellation time.

4. When opening some tripartite applications (such as Cao Cao Special Car, Xiaomi Mall, Meituan, etc.). ), the NFC switch will automatically turn on.

The offline payment service of UnionPay needs to enable NFC function, and some third-party applications (such as Cao Cao special car, Xiaomi Mall, Meituan, etc.). ) Call the UnionPay plug-in after opening the application, which causes the NFC switch to turn on automatically. It is recommended that you:

Update the UnionPay security component to the latest version: Open the settings, search application management, find "UnionPay trusted service security component", and click Uninstall. Then open Huawei wallet/wallet (if the wallet is open, please close it first). After entering the home page, the interface for updating security components will automatically pop up. Click Download and Install.

Update the mobile phone system to EMUI9. 1 or above.