Apps can fingerprint a profile (for example "backgammon masters" game is doing it, you can't get a new account after you reinstall the app, even if you change IP, the app asks for username on first start and automatically creates account based on the profile fingerprint, no way to log out of this account, it will stick to your profile), does the admin profile get a new fingerprint after we reinstall the OS, if not whay is the best way to reset the fingerprint on a given profile ?
How to properly reset the fingerprint in the admin profile ?
13 days later
Any news ?
5 days later
It is probably using Media DRM https://github.com/GrapheneOS/os-issue-tracker/issues/2314
It sucks, but it is planned to restrict access to it :D
Regular APP_ID is cleared after reinstall. It has to be something else.
soupslurpr
I doubt it used media DRM. The apps successfully works on new profiles and cannot fingerprint user across users. If it was using media DRM it would use it to block it on all users !
- Edited
This is because of ANDROID_ID.
If you reset your phone it will very likely be fixed.
ANDROID_ID persists on the profile for each app with the same signing key.
Next time don't install it on your main profile.
- Edited
there is a whole section in the faq about it..
Factory reset clears all user data and you start with a new owner user. If it is Android ID they are checking that will be different for the same app in owner user after a factory reset.