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, roll the trackwheel or press a key.
My display settings changed
Depending on your theme, display settings, 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 system administrator or your wireless service provider.
Wireless network coverage troubleshooting
I cannot connect to a wireless network
Try performing the following actions:
• Verify that your SIM card is inserted in your BlackBerry® device correctly.
• Verify that you have turned on the connection to the wireless network.
• Verify that you are connected to your wireless service provider's network. If you switched wireless networks manually, your device
remains connected to that wireless network until you select your wireless service provider's network again.
Security troubleshooting
I cannot unlock my device using my smart card
Try performing the following actions:
• Verify that the correct smart card is inserted in the smart card reader.
• Verify that the smart card is inserted in the smart card reader correctly.
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