The steps to change the name of the miui14 widget are as follows.

1. Find the widget whose name you want to change, long press it, and select "Widget Settings" or "Edit" from the options that pop up.

2. In the pop-up window, you will see the current widget name. Click the "Edit" button next to the name.

3. Enter the new name you want to change and click "Done". The widget will now display the new name you entered.