The Advertising ID is a unique identification number that is created on all smartphones.
This ad ID is used by companies and apps to provide us personalized advertising suggestions. When the advertising
ID is reset on the Huawei smartphone, everything relevant is deleted and a new ID is created.

Note: If personalized advertising is disabled, we will continue to receive the same amount of advertising suggestions, but they will be less relevant and not related to our interests.

Android 10 | EMUI 10.0
Reset advertising ID -  Open the  Settings
Reset advertising ID -  Tap on  Privacy
Reset advertising ID -  Tap on  Ads and privacy
Reset advertising ID -  Tap on  Reset Ad-ID
Reset advertising ID -  Confirm with  Reset
  1. Open the Settings
  2. Tap on Privacy
  3. Tap on Ads and privacy
  4. Tap on Reset Ad-ID
  5. Confirm with Reset

Huawei Instructions