Blackberry Dx1 Manual

Feature availability, 9User GuideMaps229 

Applications
About multitasking Your BlackBerry® device supports multitasking, which allows you to run more than one application at a time. During a call, for example, you
might want to switch to the calendar application to view your appointments or switch to the contacts application to look up a contact. While
you are playing a song, you might want to switch to the messages application to reply to a message.
There are also shortcuts for most applications that can help you to perform common tasks...

Close an application so that it is not runningTo optimize the performance of your BlackBerry® device, try to close applications when you are finished with them.
In an application, perform one of the following actions: • Press the  Menu key. Click  Close.
• Press the  Escape key. If necessary, continue to press the  Escape key until the Home screen appears.
Related topics
Keep an application running and switch to another application, 230
Keep an application running and return to the Home screen, 230
About...

About social networking applicationsYou can use social networking applications on your  BlackBerry® device to stay connected with your social networking contacts. Depending on
the social networking application, you might be able to send messages, share pictures, change your status, and more.
You can download social networking applications for your BlackBerry device from the BlackBerry App World™ storefront. You must have a
wireless service data plan to use these applications. Depending on your wireless...

Legal notice, 321
Delete a third-party application If your device is associated with an email account that uses a  BlackBerry® Enterprise Server, you might not be able to delete some third-party
applications. For more information, contact your administrator.
1. On the Home screen or in a folder, highlight a third-party application.
2. Press the  Menu key.
3. Click  Delete.
Receive a device password prompt before you add an application To perform this task, you must have set a BlackBerry® device...

Troubleshooting: Applications
I cannot add, update, or return to the previous version of an application Try performing the following actions:
• Verify that your BlackBerry® device is connected to the wireless network.
• Verify that your device has enough memory to add or update the application.
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BlackBerry Device Software
About updating the BlackBerry Device Software You might want to update your BlackBerry® Device Software for one of the following reasons:
• to access new applications and features
• to resolve a technical issue
• your wireless service provider requires that you update the BlackBerry Device Software.
The duration of the update process can range from 15 minutes to 2 hours, depending on the type of update, the amount of device data, and
the number of applications on your...

Return to the previous version of the BlackBerry Device SoftwareDepending on the options set by your wireless service provider or administrator, you might not be able to perform this task.
1. On the Home screen or in a folder, click the  Options icon.
2. Click  Advanced Options .
3. Click  Wireless Update .
4. Click  Previous update succeeded .
5. Click  Downgrade .
Delete the previous version of the BlackBerry Device Software If you update your BlackBerry® Device Software, the previous version of the...

The first time that you visit the update web site, you download the BlackBerry® Application Loader to your computer, allowing you to update
your software without connecting to the wireless network and without contributing to data usage in your wireless service plan.
The duration of the update process can range from 15 minutes to 2 hours, depending on the type of update, the amount of device data, and
the number of applications on your device. You cannot use your device or make emergency calls when you...

My device does not have enough available memory to update the BlackBerry Device
Software Try performing the following actions: • Delete media files, display languages, or third-party applications that you do not use.
• Transfer media files that you have stored in the BlackBerry® device memory to a media card.
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