1. Find "iCloud Backup"
Press Settings.
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Press your Apple ID.
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Press iCloud.
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Press iCloud Backup.
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2. Turn on automatic iCloud backup
Press the indicator next to "iCloud Backup" to turn on the function.
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Press OK.
The phone memory will be backed up automatically when your phone is charging, the screen lock is turned on and a Wi-Fi connection is established.
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3. Back up phone memory to iCloud
Press Back Up Now and wait while the phone memory is backed up.
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4. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
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