LG LGL55C User Manual page 160

Accounts and Messaging
Privacy: Factory Data Reset
Resetting the device restores all the factory defaults and erases all personal data,
including from the internal storage, information about your Google Account, any
other accounts, your system and application settings, and any downloaded
applications. Resetting the device does not erase any system software updates
you've downloaded or any files on your microSD card, such as music, pictures, or
applications. After resetting the device, the next time you turn on the device,
you're prompted to reenter the same kind of information as when you first
started the device.
> Settings > Privacy > Factory data reset.
1. Press >
2. If you are certain that you would like to restore all factory settings, tap Reset
phone.
3. Tap Erase everything to confirm.
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