1. First, the first step is to open blued, and then click My Column in the lower right corner.

2. Then click the Settings button in the upper right corner, as shown in the figure below.

3, and then the next step is to click the modify data function, as shown in the figure below.

4. Click my signature in the last step, and then enter the previous account password here. Click OK, and you will see the prompt of successful login, as shown in the figure below.