If you mean ANDROID_ID then the documentation is pretty clear I think. "A 64-bit number (as a hex string) that is randomly generated on the device's first boot and should remain constant for the lifetime of the device. (The value may change if a factory reset is performed on the device.)"
http://developer.android.com/reference/android/provider/Settings.Secure.html#ANDROID_ID On Thursday, June 28, 2012 10:41:58 AM UTC+2, elio wrote: > > Hi all, > I'm trying to figure out all cases when an android id can change. > AFAIK the android id can change if: > > - the device is rooted, manually > - changing OS (Cyanogenmod) > > Could it change upgrading the device in an official way? > > Thanks in advance > > Elio > > > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en

