Deleting Wi-Fi Network Information
If you decide to give away or sell your iPhone to somebody else, guess what? If you've configured your iPhone to connect to a private Wi-Fi network, your network settings will still be stored in your iPhone, which means that person can access those private networks. Since you may not want to give another person access to a private Wi-Fi network, you'll need to wipe out your network settings by resetting them and reconfiguring the settings to the factory settings.
To reset your network settings, do this:
From the Home screen, tap Settings. The Settings screen appears.
Tap General. The General screen appears.
Scroll down and tap Reset at the bottom of the screen. A Reset screen appears, as shown in Figure 31-9.
Figure 31-9. The ...
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