How to Recover Data After a Factory Reset on iPhone or iPad

Method 1 of 2:

Press your iPhone or iPad's Home button. This will start the standard setup process, and list your setup options on the "Apps & Data" page.
Select Restore from iCloud Backup on the Apps & Data page. This option will allow you to select one of your saved iCloud backups, and restore all your data.
- If you're not connected to the internet, you'll be prompted to select a Wi-Fi network.
Sign in with your Apple ID. Enter your Apple ID email and password, and tap Next on the top-right to proceed.
Tap Agree on the bottom-right. This button is in the lower-right corner of Apple's terms and conditions.
- You will have to agree to the terms and conditions in order to proceed.
Tap the backup you want to restore. This will download the selected backup, and restore all your data, including apps, messages, settings and other user preferences.

Method 2 of 2:

Connect your iPhone or iPad to your computer. Use the standard charging cable to connect your iPhone or iPad to the computer via USB.
Open iTunes on your computer. The iTunes icon looks like a purple musical note in a white circle. You can find it on the Start menu (Windows) or in the Applications folder (Mac).
Click the iPhone or iPad icon on the top-left. You can find this button below the Play/Pause buttons in the upper-left corner of the app window. It will open your iPhone or iPad's Summary page.
Click Restore Backup in the Backups section. You can find this button below the "Manually Back Up and Restore" heading on the right-hand side. This will open a new pop-up window.
Select the backup you want to restore in the pop-up. Click the drop-down menu, and select the backup you want to restore your data from.
Click the Restore button. This button is in the lower-right corner of the pop-up window. It will restore all your contacts, calendars, notes, messages, and settings from the selected backup.

This wikiHow teaches you how to restore your personal data and settings from a saved backup after factory resetting your iPhone or iPad. You can restore all your contacts, calendars, notes, text messages, apps, and settings from an iCloud...