NOTE: You can visit this thread for a guide on how to back up app data, contacts, and media files.

Restore Contacts from SD Storage:

1. Open “Settings”
2. Scroll to “Device” and tap “Applications”
3. Access “Contacts”
4. Select to “Import/Export contacts”
5. Tap “Import” > “SD card”
6. Choose to import a single or multiple vCard files, and if necessary select the vCard(s) you want to restore
7. Select to store contacts on “Device storage” or to sync them with your Google account

Restore Contacts from a Google Account:

1. Open “Settings”
2. Scroll to “User and Backup” and access “Accounts”
3. Select “Google”
4. Tap your email address or username
5. Make sure the “Contacts” tick box is checked
6. Tap “Menu” > “Sync Now”

Restore Media Files from SD Storage:

1. Open “My Files”
2. Go to “Local storage” and tap “SD Card’
3. Tap “More” > “Edit”
4. Tick the check boxes associated with the media files you want to restore
5. Tap “More” > “Move” > “Device storage”
6. Select the target folder or tap “Create folder”
7. When ready tap “Move here”

Restore Media Files from a Windows PC:

1. Connect the Android device to the computer via USB
2. On the phone, enable “File Transfer” / “Media device” at the prompt or from the Notification area
3. Open the File Explorer on the computer
4. Locate the media file backups on the computer
5. Copy and transfer the files to the phone storage, preferably in the “Media” folder
6. Once done, eject the phone storage and safely disconnect the device from the USB port

Restore Media Files from a Mac:

1. Connect the Android phone to the computer via USB
2. On the phone, enable “File Transfer” / “Media device” at the prompt or from the Notification area
3. Go to the “Restore” tab
4. Tick the boxes linked with “Music” “Photos” and other media file types you want to restore
5. Select the desired files or tap “Select all”
6. Click “Restore” to start the process
7. After the process is done, eject the phone storage by dragging the virtual drive from the desktop and dropping it over the “trash can” icon
8. You can safely disconnect the phone from the USB port