1, open the settings and then open the mailbox to see if there is an account of iCIoud. If there is no account number, return it. If not, click Add Account. The first one is.
2. iCIoud account Enter your iTunes account password. This should be simple. Anyone who can read will generally pay attention to the above needs network support, preferably wireless network or 3G network. Don't use mobile cmnet. If you have done all the above, click Settings, and then click.
3. Just turn on the switch of I cloud cloud backup. Pay attention to his hint. Only when the screen of the charger is locked by using a wireless VoIP phone will he back up automatically. You can also manually click Backup Now.