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How to Unbind the Bank Card Bound by Mobile Banking
1 Bank of China: Log in to the mobile banking of Bank of China, select the debit card to unbind on the "Account Management" page, and click more "?" -Cancel Association to cancel the association of debit cards. Credit cards can be disassociated through Home-Credit Cards-Card Management-Unassociate.

2 agricultural bank: log in to the mobile banking of agricultural bank, click "my account" on the homepage, click the gear icon in the upper right corner of the debit card page, enter the account management page, and select "debit card deletion" to unbind.

3 China Construction Bank: log in to China Construction Bank's mobile banking, click "Account" on the home page, enter the account page, select the bank card to unbind, and click Unbind.

4 ICBC: log in to ICBC mobile banking, select Favorites-My Account, press and hold the bank card to be deleted, and click Delete Account to successfully unbind the bank card.

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SMS mode

MS( short message service) mode is to use short messages of mobile phones to handle banking business, which is easy for customers to access. Mobile phones generally support short messages, and most people use short messages. The active on-demand mode of short messages can also be used to realize banking transactions. However, the security level of this method is very low, which will leave traces in mobile phones and servers of network operators.

STK mode

STK( sim tool kit) mode is to write the menu of banking services into a special STK card, so as to facilitate the menu operation of customers. STK card itself has a relatively perfect identity authentication mechanism, which can effectively guarantee the transaction security, but its shortcomings also exist in three aspects:

(1)STK card has limited capacity, and usually only one bank application can be written in the card, and it cannot be changed. Although OTA over-the-air download technology can update the contents of STK card and upgrade the service, it is still troublesome.

(2) The store-and-forward mechanism of the same short message will make the transaction leave traces in the server of the network operator.

(3) The business is complicated, and the cost of switching to STK card is too high for customers.

USSD mode

USSD is an unstructured supplementary data service of a new interactive mobile data service, which is a new interactive data service based on GSM network and can be used to develop various services. USD message is transmitted through SS7 channel, which can keep dialogue with various application services. USSD can take the existing GSM network as a transparent bearer entity, and operators can make their own corresponding services that meet the needs of local users through USSD. In this way, USSD service can provide data services for mobile users conveniently, and adding new services has little impact on the original system.

WAP mode

WAP mode is the abbreviation of (Wireless application protocol), which is a combination of a series of specifications for developing similar Internet applications on mobile networks. It will enable a new generation of wireless communication equipment to reliably access the Internet and other advanced telephone services. Because the wireless network system is different from the fixed network system, and the screen and keyboard of the mobile terminal are very small, WAP is not suitable for HTML (Hypertext Markup Language), but needs special WML (Wireless Markup Language). Around 2, WAP technology was once a hot spot promoted by IT vendors, but it quickly declined due to the speed of Internet access and other factors.