To continue, review Terms and Conditions then tap Agree.
From the 'Choose Backup' screen, choose which backup to restore.
From the Keep Your iPhone Up to Date, tap Continue.
If prompted, enter your Apple ID again to restore your previous purchases and apps.
Ensure you maintain a data connection via Wi-Fi or cellular; if you disconnect from Wi-Fi, the transfer pauses until you are reconnected.
Time to restore content depends on the amount of data being transferred.