The mobile phone is restored to the factory settings. I know you prompted to log in with the original device. How to solve it?

1. First, log in the mobile banking software on the original mobile phone.

2. Secondly, find the mobile banking page, open the service settings, enter the account manager page, and pull out the small red button.

3. Finally, click "Open" to enter the unbinding page, click the red button with the word "Next" at the bottom, and click twice to confirm the unbinding of the mobile phone device.