user1512591
user1512591

Reputation: 71

How does Android device when factory wiped still remember app activation code?

When a user has paid for a premium subscription app what happens to the activation code if that device is then factory wiped? It cannot be stored in SharedPreferences - what about Google Play? I've noticed some apps are able to recover the activation codes after factory wipes. How is this possible?

Upvotes: 0

Views: 316

Answers (2)

Ran
Ran

Reputation: 4157

The shared preferences can be backed-up and restored to Google's cloud, or more specifically:

https://developers.google.com/android/backup/

Upvotes: 0

Sindre
Sindre

Reputation: 3930

Most likely because they are stored in the cloud, at their servers, and when you reconnect with a recognized account they know it. That recognized account may as well be the Google-account. Windows 8 metro comes for instance with their own cloud-based storage for applications linked to peoples live-accounts

Also some apps may store an activation-file on the SD-card or to file. Factory swipe does not always mean a formatting.

Upvotes: 4

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