I Cannot Connect To A Wireless Network - Blackberry Pearl 8130 User Manual

I cannot change some fields in a Calls From notification profile exception
If you assign a custom ring tone to a contact in the address book, a Calls From notification profile exception appears in the notification
profile list. Because these notification profile exceptions are for calls only, you can only change the Custom Ring Tone field.
Display troubleshooting
My device screen turns off
When you do not use your BlackBerry® device for a period of time, the screen turns off to conserve battery power.
To turn on the screen, click the trackball or press a key.
My display changed
Depending on your theme, display options, such as your font and Home screen background, might change when you switch themes.
Language troubleshooting
Some characters do not appear correctly on my device
The BlackBerry® Enterprise Server or BlackBerry® Internet Service that is associated with your BlackBerry® device might not support the
characters. For more information, contact your wireless service provider or administrator.
Wireless network coverage troubleshooting

I cannot connect to a wireless network

Try performing the following actions:
• Verify that you have turned on the connection to the wireless network.
• If you have set a specific speed for wireless network connections, verify that you are in a wireless coverage area that supports
the connection speed.
Security troubleshooting
I cannot download a certificate
If you changed the connection type that your BlackBerry® device uses to connect to the LDAP certificate server, try switching to the default
connection type.
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