Use APKPure App
Get Device ID changer [ROOT] old version APK for Android
Ändern ANDROID_ID einfach - ROOT Erlaubnis
Version for Android Oreo and above:
https://play.google.com/store/apps/details?id=com.sdex.androididchanger.oreo
ANDROID_ID is a 64-bit number that should remain constant for the lifetime of a device. ANDROID_ID seems a good choice for a unique device identifier because it’s available for smartphones and tablets.
On Android 8.0 and higher versions of the platform, ANDROID_ID is unique to each combination of app-signing key, user, and device. Values of ANDROID_ID are scoped by signing key and user. The value may change if a factory reset is performed on the device or if an APK signing key changes.
The app can change ANDROID_ID without factory reset.
Requires ROOT permission.