my iphone has been completely erased, how can i get the factory settings back?

[Layman]

I have erased my iPhone completely and need to get the factory settings back on it so I can sell it,

[fernandobot · Accepted solution]

Settings > General > Reset > Erase all content and settings.

before you sell it, it would be helpful to write down the IMEI number that can be found under Settings > General > About.