Every time unlock the android phone, some advertisement app will execute in fullscreen. You cannot found in downloaded apps, it overwrite the system app.
Device: Redmi note 3 pro
Rooted: No
MIUI: 7.17.9.0 (stable)
sample ads
Solution
1. Go to Setting -> Installed apps -> All, find the app. My case the ads app under "com.android.comp.download.mgra001"
2. Disable the app (on bottom)
You have to root your phone if want to uninstall the app
Please let me know if you have better solution.
