Ciao ersikekko, Benvenuto nella nostra Community 
Ti confermo quanto scritto da Andrea: è possibile effettuare il backup dati del tuo Galaxy S3 utilizzando il software di sincronizzazione Samsung Kies
Una volta eseguito il backup, potrai effettuare il ripristino alle impostazioni di fabbrica del terminale e successivamente, sempre attraverso Kies, ripristinare i dati salvati.
Tienici aggiornati!
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