=> If the iPhone will not turn on, or if the display freezes or does not respond to the solution:
1. Press and hold down the Home button below the screen at least six seconds, until the application you use to stop.
2. If it does not work, change the iPhone off and turn it on again. Press and hold
the Sleep / Wake button on top of iPhone for a few seconds until a red slider appears, and then drag the slider. Then press and hold the Sleep / Wake button until the Apple logo appears.
3. If the iPhone does not work, reset. Press and hold both the Sleep / Wake button and Home button for at least ten seconds, until the Apple logo appears.
=> Updating and Improving Software iPhone, You can use iTunes to update or restore iPhone software. You should always update iPhone to use the latest software. You can also restore the software, the iPhone back to its original state. If you restore, all data is erased from iPhone, including songs, videos, contacts, photos, calendar information, and other data. All iPhone settings returned to their home countries. Here's how
1. Make sure you have an Internet connection and have installed the latest version of iTunes from www.apple.com / itunes.
2. Connect iPhone to your computer.
3. In iTunes the iPhone, select the Source window and click the Summary tab.
4. Click "Check for Update" iTunes. Notify you if there is a newer version of the iPhone software available. 5. Click Update to install the latest version of the software. Or click Restore to restore iPhone to factory settings and erase all data on your iPhone. Follow the instructions on screen to complete the restore process.
=> Reset the iPhone Settings Reset all settings select general, Reset and tap Reset All Settings, all your preferences, such as information, such as contacts and calendar, and media, such as songs and videos, will not be terhapusm while deleting all the content and settings select Reset and general press the "Delete All Content and Settings." Then all your information and media will be removed. You must sync iPhone with your computer to restore contacts, songs, videos, and other information and media.
=> Reset the keyboard dictionary general select Reset and press the Reset Keyboard Dictionary, you add words to the keyboard dictionary by rejecting words iPhone suggests as you type. Tap the word to reject the correction and adding words to the dictionary keyboard. Resetting the keyboard dictionary deleting all the words you add.
