Losing important contacts, priceless photos, song collections and various other data from our smartphones is something a lot of us have experienced or had a scare with at some point in time. No-one ever backs up their device as often as they should, so inevitably something of importance is bound to be lost.

When data is deleted from the phone, the phone marks the data as deleted and no longer displays it on the phone. This data may immediately be overwritten by the phone or it may be available for recovery until new data overwrites it. With most cell phones, new data is written over deleted space first so only the most recent data can be recovered.