Blackberry Curve 9310, 9315, 9320 User Guide

Close an app so that it is not running in the 
background
To optimize the performance of your BlackBerry smartphone, try to close apps when you are finished with them.
1.To see which applications are running, press and hold the  key until the application switcher appears.
2.Click an application icon.
3.In the app, do one of the following:
 • Press the  key > Close.
 • Press the  key. If necessary, continue to press the  key until the home screen appears.
Related information
Keep an application running in...

Delete an application
If your email account uses a BlackBerry Enterprise Server, your organization might not permit you to delete some 
applications. For more information, contact your administrator.
1.On the Home screen or in a folder, highlight an application icon.
2.Press the  key > Delete. 
View the size of an application database
1.On the home screen or in a folder, click the Options icon.
2.Click Device > Device and Status Information.
3.Press the  key > Database Sizes.
Troubleshooting:...

•If you downloaded the app from your wireless service provider or a third-party organization, for more information about restoring the app, contact your wireless service provider or the third-party organization.
Error messages: BlackBerry Device Software
"App" or "JVM" might appear before an error message. For example, "JVM Error 101" or "App Error 200."
Error message and causePossible solutionError 101: Application error
Error 102: Java file error
Error 106: Graphics...

Error message and causePossible solutionError 200: BlackBerry Device Software 
error
Error 545: Incompatible file system
Try the following actions:
•Reset your smartphone.
•If the error message still appears after you reset your smartphone, reload your 
BlackBerry Device Software. The reload process deletes your 
smartphone data.
•If the error message still appears after you reload your BlackBerry Device 
Software
, contact your wireless service provider.
Error 203: Application process 
terminatedReset...

You may need to reload the BlackBerry Device Software to resolve a technical issue. It might take up to an hour to reload 
the 
BlackBerry Device Software. During that time, you can't disconnect your BlackBerry smartphone from your computer.
Note: You might not be able to back up your smartphone data if you are reloading the BlackBerry Device Software to 
resolve a technical issue, such as an application error.
1.Connect your smartphone to your computer.
2.Open the BlackBerry Desktop Software.
3.In...

BlackBerry ID
How to: BlackBerry ID
About BlackBerry ID
A BlackBerry ID gives you convenient access to multiple BlackBerry products and services. After you create a BlackBerry 
ID
, you can use your BlackBerry ID email address and password to log in to any BlackBerry product that supports 
BlackBerry ID. With BlackBerry ID, you can manage apps that you downloaded from the BlackBerry App World storefront 
and keep apps you downloaded when you switch smartphones.
You are prompted to log in using your...

•From a computer, visit www.blackberry.com/blackberryid.
•On the home screen of your BlackBerry smartphone, click Options > Device > BlackBerry ID.
2.Complete the instructions on the screen.
User GuideBlackBerry ID
247  

BlackBerry Device Software
How to: BlackBerry Device Software
About updating the BlackBerry Device Software
You might want to update your BlackBerry Device Software to access new applications and features or to resolve a 
technical issue. The duration of the update process can range from 15 minutes to 2 hours, depending on the type of 
update, the amount of smartphone data, and the number of applications on your 
BlackBerry smartphone. You can't use 
your smartphone or make emergency calls when the...

If you updated your software over the wireless network, to delete the previous version of software that is temporarily stored 
on your smartphone, on the home screen or in a folder, click the 
Options icon. Click Device > Software Updates. Press the 
 key > View Result. Press the  key > Delete Downgrade Data.
Related information
About backing up and restoring smartphone data, 179 
I can't update the BlackBerry Device Software over the wireless network, 250
My smartphone doesn't have enough...

Troubleshooting: BlackBerry Device 
Software
I can't update the BlackBerry Device Software over 
the wireless network
Depending on the options that your wireless service provider or administrator sets, you might not be able to update your 
BlackBerry Device Software over the wireless network.
Try the following actions:
•Verify that your BlackBerry smartphone is connected to a wireless network.
•Verify that you're not roaming outside of your wireless service provider's wireless coverage area....