Zte Z3351S - Page 104

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Date & Time
Open Settings and touch System > Date & time to set date, time,
time zone, and the time format. You can also use network-provided
data.
Backup
Open Settings and touch System > Backup to manage data backup
options. You can back up app data, call history, device settings
including Wi-Fi passwords, and other data to Google servers after
you sign in to your Google account.
Reset Options
Open Settings and touch System > Reset options to reset the
network setting, app preferences or the phone to factory status.
System Update
Open Settings and touch System > System Update to check for
system updates and other options.
About Phone
Open Settings and touch System > About phone to view important
phone information and legal information.