1. Open the Bank of China mobile client and click the "Login" button in the upper left corner of the software window to enter the login page.

2. Enter your mobile phone number and mobile banking login password on the login page, then click "Login" below, then enter the last six digits of the tied bank card account number in the jumped verification window, and then click Click "Next" below, and then your phone will receive a bank text message. ?

3. Enter the login verification code provided in the mobile phone text message (limited time to enter within 60 seconds), then click "Complete" in the lower left corner of the input keyboard, and the mobile banking login is successful.

4. Click the "My" button in the lower right corner of the mobile banking homepage to enter the settings page, select the "Security Center" item and click to open it.

5. In the Security Center settings window, select "Manage Bind Devices" and click to open it. Then, click the "Unbind" button at the bottom of the window, and a small confirmation window will pop up.

6. Click "OK" in the unbinding confirmation window. Your phone will receive a bank text message. In the window after the jump, enter the unbinding verification code received in the text message (limited to 60 seconds). Enter within seconds) to complete the unbinding.

7. After successful unbinding, the mobile banking window will automatically jump to the "My" settings page when not logged in.