How to add this mobile phone border?

Demo version: Meitu Xiu Xiu 9.0.75 (model: Huawei p40pro, iPhone 12Pro)

Download Meitu Xiu Xiu on the mobile phone and open it;

Then click the beautification picture, and click the picture to add a border;

Then click on the border, select the border you want, and click OK in the lower right corner.