Note: If you enter the PIN incorrectly three times, you may need to contact your carrier for a Personal Unlocking Key (PUK) to enable your SIM card again.

• Press and hold the Home button below the screen for at least six seconds, until the application you were using quits.
• If that doesn't work, turn 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.
• If that doesn't work, reset iPhone. Press and hold both the Sleep/Wake button and the Home button for at least ten seconds, until the Apple logo appears.

• Reset iPhone settings. From the Home screen choose Settings > General > Reset > Reset All Settings. All your preferences are reset, but no data or media is deleted.
• If that doesn't work, erase all content on iPhone. From the Home screen choose Settings > General > Reset > "Erase All Content and Settings." All your preferences and other data are removed from iPhone.
• If that doesn't work, restore the iPhone software. See "Updating and Restoring iPhone Software" on "Tips and Troubleshooting chapter".

• Unplug and reconnect the headset. Make sure the connector is pushed in all the way.
• Make sure the volume isn't turned down all the way.
• Music on iPhone might be paused. Try clicking the mic button on the headset to
• Check to see if a volume limit is set. From the Home screen choose Settings > iPod > Volume Limit. For more information, see "Settings chapter".
• Make sure you are using the latest version of iTunes (go to www.apple.com/itunes).
• If you are using the dock's line out port, make sure your external speakers or stereo are turned on and working properly.

iPhone goes to sleep after music has been paused for five minutes. Press the Home or Sleep/Wake button to wake up iPhone.

If your headset or headphones don't fit in the iPhone headset jack

iPhone supports third-party headsets and headphones with a standard 3.5 millimeter stereo miniplug. Some of these may not connect properly to iPhone because the plug body is too large to fit in the jack inset. Third-party adapters may be available.

If iPhone shows a message saying "This accessory is not made to work with iPhone"

If you connect iPhone to an accessory not specifically made for it, iPhone may ask if you want to turn on airplane mode. This is to eliminate radio interference from cellular signals coming from iPhone. You may be able to use iPhone with the accessory whether or not you turn on airplane mode. However, the accessory may not charge iPhone.

If you turn on airplane mode, you won't be able to make calls, send or receive text messages, access the Internet, or use Bluetooth devices with iPhone until you disconnect iPhone from the accessory or turn off airplane mode.

If iPhone shows a message saying "This accessory is not supported by iPhone

The accessory you attached will not work with iPhone.

If iPhone calls your voicemail service when you tap Voicemail in Phone

If the voice instructions prompt you, enter your voicemail password. Otherwise, wait until you hear any voice instruction, then end the call. After a time, Voicemail should become available again.

If you can't add or play a song, video, or other item

The song may have been encoded in a format that iPhone doesn't support. The following audio file formats are supported by iPhone. These include formats for audiobooks and podcasting:

• AAC (M4A, M4B, M4P, up to 320 Kbps)
• Apple Lossless (a high-quality compressed format)
• MP3 (up to 320 Kbps)
• MP3 Variable Bit Rate (VBR)
• WAV
• AA (audible.com spoken word, formats 2, 3, and 4)
• AAX (audible.com spoken word, AudibleEnhanced format)
• AIFF

• H.264 (Baseline Profile Level 3.0)
• MPEG-4 (Simple Profile)

Using iTunes for Windows, you can convert nonprotected WMA files to AAC or MP3 format. This can be useful if you have a library of music encoded in WMA format. iPhone does not support WMA, MPEG Layer 1, MPEG Layer 2 audio files, or audible.com format 1.

If you have a song or video in your iTunes library that isn't supported by iPhone, you may be able to convert it to a format iPhone supports. See iTunes Help for more information.

If you can't open an attachment in an email

The file type may not be supported. iPhone supports the following email attachment file formats:

• .c, .cpp, .diff, .doc, .docx, .h, .hpp, .htm, .html, .m, .mm, .patch, .pdf, .txt, .xls, .xlsx

You may need to change the port setting on an outgoing mail server for one of your email accounts. For information, go to www.apple.com/support/iphone and search for "I can receive email on iPhone but can't send it."

If you entered information on iPhone that you don't want to sync to your computer

Replace contacts, calendars, mail accounts, or bookmarks on iPhone with information from your computer.

1. Open iTunes.
2. As you connect iPhone to your computer, press and hold Command-Option (if you're using a Mac) or Shift-Control (if you're using a PC) until you see iPhone in the iTunes Source pane. This prevents iPhone from syncing automatically.
3. Select iPhone in the iTunes Source pane and click the Info tab.
4. Under "Replace information on this iPhone," select Contacts, Calendars, Mail Accounts, or Bookmarks. You can select more than one, if you like.
5. Click Apply.

If you can't sync with Yahoo! Address Book

iTunes may not be able to connect with Yahoo!. Make sure you are connected to the Internet, and that you've entered the correct Yahoo! ID and password in iTunes. Connect iPhone to your computer, click the Info tab in iTunes, click Configure in the Contacts section, then enter your current Yahoo! ID and password.

If contacts you deleted on iPhone or your computer are not removed from Yahoo! Address Book after syncing

Yahoo! Address Book does not allow contacts containing a Messenger ID to be deleted through syncing. To delete a contact containing a Messenger ID, log in to your Yahoo! account online and delete the contact using Yahoo! Address Book.

If you can't access the iTunes Wi-Fi Music Store

To use the iTunes Wi-Fi Music Store, iPhone must join a Wi-Fi network that is connected to the Internet. For information about joining a Wi-Fi network, see "Basics chapter". The iTunes Wi-Fi Music Store is not available in all countries.

If you can't purchase music from the iTunes Wi-Fi Music Store

To purchase songs from the iTunes Wi-Fi Music Store (only available in some countries), you must have an iTunes Store account, and you must have been signed in to that account when you last synced iPhone with iTunes. If you get a message that no account information is found when you try to purchase music, open iTunes on your computer, sign in to your iTunes Store account, then connect and sync iPhone.

If you can't make a call or send a text message over Wi-Fi

iPhone doesn't support calling or texting over Wi-Fi.

Removing the SIM Card

Remove the SIM card Insert the end of a small paper clip (or the SIM eject tool if it came with your iPhone) into the hole on the SIM tray. Press firmly and push it straight in until the tray pops out.

Updating and Restoring iPhone Software

• If you update, the iPhone software is updated but your settings and songs are not affected.
• If you restore, all data is erased from iPhone, including songs, videos, contacts, photos, calendar information, and any other data. All iPhone settings are restored to their original state.

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, select iPhone in the Source pane and click the Summary tab.
4. Click "Check for Update." iTunes tells you if there's 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 its original settings and erase all data on iPhone. Follow the onscreen instructions to complete the restore process.

The following features may make it easier for you to use iPhone if you have a disability.

TTY support (available in some areas)

Use iPhone in TTY mode with the iPhone TTY Adapter (available separately) to use a Teletype (TTY) machine. See "Using iPhone with a Teletype (TTY) Machine" on "Settings chapter".

Closed captioning

When available, you can turn on closed captioning for videos. See "Turn closed captioning on or off" on "Settings chapter".

Minimum font size for Mail messages Set a minimum font size for Mail message text to Large, Extra Large, or Giant to increase readability. See "Set a minimum font size for messages" on "Settings chapter".

Large keypad Make phone calls simply by tapping entries in your contacts and favorites lists. When you need to dial a number, iPhone's large numeric keypad makes it easy. See "Dial a call" on "Phone chapter".

Zooming

Double-tap or pinch webpages, photos, and maps to zoom in. See "Basics chapter".

Visual voicemail

The play and pause controls in visual voicemail let you control the playback of messages. Drag the playhead on the scrubber bar to repeat a portion of the message that is hard to understand. See "Listen to a new voicemail message" on "Phone chapter".

Universal Access in Mac OS X

Take advantage of the Universal Access features in Mac OS X when you use iTunes to sync information and content from your iTunes library to iPhone. In the Finder, choose Help > Mac Help, then search for "universal access."

For more information about iPhone and Mac OS X accessibility features, go to: www.apple.com/accessibility

Learning More, Service, and Support

There's more information about using iPhone, in onscreen help and on the web.

To learn about	Do this
Using iPhone safely	Go to www.apple.com/support/manuals/iphone for the latest Important Product Information Guide, including any updates to the safety and regulatory information.
iPhone Service and support, tips, forums, and Apple software downloads	Go to www.apple.com/support/iphone.
Service and support for your carrier	Contact your carrier or go to your carrier's website.
The latest information about iPhone	Go to www.apple.com/iphone.
Using iTunes	Open iTunes and choose Help > iTunes Help. For an online iTunes tutorial (available in some areas only), go to www.apple.com/support/itunes.
Using iPhoto on Mac OS X	Open iPhoto and choose Help > iPhoto Help.
Using Address Book on Mac OS X	Open Address Book and choose Help > Address Book Help.
Using iCal on Mac OS X	Open iCal and choose Help > iCal Help.
Microsoft Outlook, Windows Address Book, Adobe Photoshop Album, and Adobe Photoshop Elements	See the documentation that came with those applications.
Finding your iPhone serial number	Look at the back of your iPhone or choose Settings > General > About from the Home screen.
Obtaining warranty service	First follow the advice in this guide and online resources. Then go to www.apple.com/support or see the Important Product Information Guide that comes with iPhone.

See Also