Digital Trends:

Huawei says images with ads, which it had been testing on its Magazine app, were inadvertently published on some users’ lock screens and are now off its servers  —  Ads appeared on the lock screens of Huawei and Honor smartphones on Thursday, causing public outcry and anger from device owners in online forums and social media.

Huawei says images with ads, which it had been testing on its Magazine app, were inadvertently published on some users' lock screens and are now off its servers (Digital Trends)
Source: Tech Meme