PlayStation®4 Support | PlayStation
https://www.playstation.com/en-gb/support/hardware/ps4/
webUpdate System Software Allows you to update the PS4 system software via direct download, a USB storage device or a disc. Restore Default Settings Restores the PS4 system to the default factory settings. Restoring default settings won’t delete content on console storage such as games, apps, screenshots, video clips, and saved data. Rebuild ...
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