If your important data has been deleted from phone and you are looking for its complete recovery then the use of automatic Phone memory recovery software is an effective solution. I have restored all my inaccessible data after the use of this very software.NOTE: As the software can only access the rooted Android device, you need to make sure that your phone has been rooted before recovery. Step 2. Scan Android phone to find the lost data After connecting your Android phone, the software will quickly scan the device to find all the existing and lost data.How to recovery Nokia Lumia 520 to Factory Settings and Hard reset (Wipe) Hard reset Nokia Lumia 520 using external hardware keys Turn off the device Press andIf your phone is low on memory, you may need to move your apps, photos, and other stuff to the memory card. Warning: If you install a software update, you cannot use the device, even to make emergency calls, until the installation is completed and the device is restarted.