Apple 5s upgrade ios7.1.2 after the WiFi network can do?

1, we can restart the Apple phone to see, sometimes restart the phone after the discovery is available

2. Set up the mobile phone flight mode, switch to see.

3. We are in the Apple 5s "set-restore-Restore network Settings" and then we restore a network factory settings.

4. If we still do not have a way, but you can return the system to iOS7 OH.

Friendly tip: If you're sure it's not the above, but because the system went wrong after you upgraded ios7.1.2, then if there's no way you can use itunes to restore your phone to the ios7.1.1 version.