If you use a Xiaomi, Redmi, or POCO phone running HyperOS, you've probably noticed ads appearing in system apps like Downloads, Mi Browser, Music, and Security. While Xiaomi doesn't automatically disable all ads, a few simple settings changes can clear up most of them. Here's how to clean up your phone and reduce ads. 1. Disable MSA System Ad Service. Most ads come from MSA (MIUI System Ads), which delivers ads across the entire system. To disable it, go to Settings > Fingerprints, face data & screen lock (or Passwords & security) > Authorization & revocation, then turn off MSA and tap Revoke to confirm. This stops most ads. 2. Disable personalized ad recommendations. You can also turn off ads that use your usage data. Go to Settings > Privacy > Ad services (or Advertising services) and disable Personalized ad recommendations. This prevents ads from being shown based on your activity. 3. Disable ads in individual system apps. For an even cleaner experience, go into each app individually. For apps like Downloads, Mi Browser, Mi Video Player, Music, Security, Themes, and App Vault, go into their settings and look for options like "Show ads" or "Personalized recommendations" and turn them off. 4. Additional methods and why it matters. Beyond the above, you can also go to Settings > Apps > Manage apps > View all apps, find MSA, and disable its Notifications. Alternatively, use a private DNS like AdGuard to block ads at the network level. Disabling these ads not only reduces annoyance but also noticeably improves battery life and privacy. Note that some settings may reset after software updates, so it's worth checking occasionally. Ref: Gizmochina