User Guide

Appendix A Troubleshooting 137

Safari, Text, Mail, and Contacts

Websites, Text, or Email Aren’t Available

Check the cell signal Â icon in the status bar at the top of the screen. If there are no

bars, or if it says “No service,” try moving to a dierent location. If you’re indoors, try

going outdoors or moving closer to a window.

Check to make sure you’re in an area with network coverage. Go to your carrier’s Â

website to see network coverage areas.

If the cellular network is not available, connect to a Wi-Fi network if possible. Â

Make sure airplane mode isn’t on. From the Home screen choose Settings, then turn Â

airplane mode o. If that doesn’t work, turn airplane mode on, wait 15 seconds, then

turn airplane mode o again.

Make sure to include an area code for every phone number in your contacts list that Â

you use to send or receive text messages.

Turn iPhone o and back on again. Press and hold the Sleep/Wake button on top of Â

iPhone for a few seconds until a red slider appears, then drag the slider. Then press

and hold the Sleep/Wake button until the Apple logo appears. Tap Unlock and enter

your SIM’s PIN if the SIM is locked.

Important: 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.

There may be a problem with your wireless service. Call your carrier or go to your Â

carrier’s website.

If you’re traveling abroad, you may not have Internet access because Data Roaming Â

is turned o (the default). Turn Data Roaming on or connect to a Wi-Fi network.

To turn Data Roaming on, in Settings choose General > Network and tap Data

Roaming. Data roaming charges may apply.

Important: Data roaming charges may apply. To avoid data roaming charges, turn

Data Roaming o.

Restore the iPhone software. See “ Â Updating and Restoring iPhone Software” on

page 142.

Email Attachment Won’t Open

The le type may not be supported. iPhone supports the following email attachment

le formats:

.doc Microsoft Word

.docx Microsoft Word (XML)

.htm webpage