Apple iphone 3g 16gb Guida Utente
Appendix A
Troubleshooting
135
Voicemail Service Is Called When You Tap Voicemail
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.
until you hear any voice instruction, then end the call. After a time, Voicemail should
become available again.
This may occur if you removed the SIM card from iPhone and replace it with another
SIM card.
SIM card.
Safari, Text, Mail, and Contacts
Websites, Text, or Email Aren’t Available
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Check the cell signal 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 different location. If you’re indoors, try
going outdoors or moving closer to a window.
bars, or if it says “No service,” try moving to a different location. If you’re indoors, try
going outdoors or moving closer to a window.
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Check to make sure you’re in an area with network coverage. Go to your carrier’s
website to see network coverage areas.
website to see network coverage areas.
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If the cellular network is not available, connect to a Wi-Fi network if possible.
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Make sure airplane mode isn’t on. From the Home screen choose Settings, then turn
airplane mode off. If that doesn’t work, turn airplane mode on, wait 15 seconds, then
turn airplane mode off again.
airplane mode off. If that doesn’t work, turn airplane mode on, wait 15 seconds, then
turn airplane mode off again.
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Make sure to include an area code for every phone number in your contacts list that
you use to send or receive text messages.
you use to send or receive text messages.
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Turn iPhone off and back on again. Press and hold the Sleep/Wake button on top of
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.
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.
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There may be a problem with your wireless service. Call your carrier or go to your
carrier’s website.
carrier’s website.
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If you’re traveling abroad, you may not have Internet access because Data Roaming
is turned off (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.
is turned off (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 off.
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