iphone goes black after voice prompts are turned on

As soon as you get your iPhone, you can get started.

Browse while listening to narration

iPhone 4 comes standard with accessibility features that help people with disabilities experience all the power of iPhone. VoiceOver is the most important accessibility feature of iPhone and the world’s first gesture-based screen reader. No need to memorize keyboard commands or tap tiny arrow keys, just touch the screen, hear the description of the item your finger points to, and control iPhone with double-tap, drag, or flick gestures.

VoiceOver speaks 21 languages ??and works perfectly with all of iPhone 4’s built-in apps. A new language rotor feature in iOS 4 lets you temporarily select a spoken language without making changes to system settings.

Use FaceTime for video calls

FaceTime on iPhone 4 lets you make video calls with family and friends around the world, even when using hand gestures. Works from iPhone 4 to iPhone 4 using Wi-Fi, no setup or special account required. In fact, making a video call is just as easy as having the feature: Just tap the FaceTime button on a contact to start the call. If someone wants to start a video call with you, your iPhone 4 will receive an invitation, a vibrating notification, asking you to join. Just click Accept to start the call.

Supports wireless braille displays and international braille tables

iPhone 4 supports more than 30 Bluetooth wireless braille displays right out of the box. Just pair it with a braille display and use VoiceOver to control your iPhone—no additional software required. In addition, iPhone has Braille tables that support more than 25 international languages.

Voice-assisted input

Touch typing is an optional new way for blind and visually impaired people to input on the on-screen keyboard. With touch typing, you can tap keys on your keyboard with your fingers and listen to VoiceOver read each letter aloud. When you hear the letter you want, lift your finger to select it.

Upgraded rotor

VoiceOver also has rotor virtual control function. Rotate two fingers on the screen like a jog dial to turn the rotor to change the way VoiceOver browses the web based on the setting you choose. For example, flicking your finger up or down lets you navigate the web by titles, links, or images. In iOS 4, you can add settings to the web rotor, such as lists, tables, text boxes, and buttons. Currently, the rotors are visible to sighted users, making it easier for them to assist you or use the feature themselves.

Scroll in and out

Zoom on iPhone lets you enlarge the entire screen of any app up to five times its normal size. Move up, down, left, and right to see any part of the screen more clearly. Zoom is available everywhere: on the home screen, on the lock screen, on the search screen, and even in apps you purchase from the App Store. In addition to zooming, iPhone 4’s new Large Fonts feature lets you further enlarge the font size of key elements in Mail, Contacts, Notes, and Messages.

White text on black for enhanced contrast

If you prefer higher contrast, iPhone 4 lets you change the display to white on black. Use white on black in any app, on the Home screen, Lock screen, and Search screen, plus with Zoom and VoiceOver at the same time.

Optional mono audio

If you have difficulty hearing in one ear, click the checkbox to import left and right stereo audio into both earbuds at the same time, so that each of your ears Both channels of audio can be heard.

Supports closed subtitles

iPhone supports open subtitles, closed subtitles and subtitles. The subtitles that appear on the screen are just like the closed captions you see on TV. You can create and watch your own closed-captioned videos.

Learn more about iPhone and its accessibility features FaceTime Retina display Multitasking HD video Camera folder Game Center Phone Mail Safari iPod Home screen photos AirPrint AirPlay Voice control SMS and MMS Keyboard and Chinese input Search App Store Accessibility Find My iPhone More Functions iMovie

At the same time, you can now type the full Chinese pinyin. Blind people should pay attention to word selection, and the method to enable voice is:

Find it in Settings-Auxiliary It's OK to activate him starting with o.