By: Elena Grace Flores
The fastest way to correct unknown errors on your iPhone is to just reset it. Resetting the iPhone settings that basically brings back the iPhone setting to its factory default — can restore its original settings when they were not corrupted yet. There’s no need to worry about losing your data or media because this process won’t erase anything. You just have to customize it again into your liking after making it work properly again. Tap the Settings icon on your Home screen; then tap General→Reset→Reset All Settings.
Be careful not to tap Erase All Content and Settings — at least, not yet. Erasing all content takes more time to recover from (because your next sync takes a long time), so try Reset All Settings first.
Reset some of the other options available on the Reset screen, such as Reset Network Settings, Reset Keyboard Dictionary, Reset Home Screen Layout, and Reset Location Warnings. It’s not likely to help, but might be worth a try before you resort to erasing all content and settings. See more from the source: http://www.dummies.com/how-to/content/how-to-reset-settings-and-content-on-your-iphone.html
More from Dummies.com: If resetting all settings didn’t cure your iPhone, tap Settings→General→Reset→Erase All Content and Settings.
This strategy deletes everything from your iPhone — all your data, media, and settings. Because all these items are stored on your computer — at least, in theory — you should be able to put things back the way they were during your next sync. But you lose any photos you’ve taken, as well as contacts, calendar events, and any playlists you’ve created or modified since your last sync. After using Erase All Content and Settings, check to see whether your iPhone works properly.Hopefully, your iPhone is back to its old self.