2Open the application menu and tap Tests > Interactive Tests.
3Work with the support agent to run and view results from one or more tests.
Change default applications
If you have more than one application on your smartphone that can perform a particular function, you can change the default application to use for that function.
In addition, if you have more than one application on your smartphone that can open a particular file type, you can change the default application to use for opening that file type.
1Open Device Info 
.
2Open the application menu and tap Default Applications.
3To find data types and file types for which more than one app is available, look for app names that appear in black type.
4Do either or both of the following:
•To change the default application to use for different functions: Under Data Types, tap the currently displayed application for a given data type, and tap a different application.
•To change the default application to use for different file types: Under File Types, tap the currently displayed application for a given file type, and tap a different application.
To override the default application setting when looking for the map location of an address: Press and hold Option , tap the address, and tap an application.
Use Certificate Manager
Certificates are digital documents that are used to authenticate and exchange information on networks. Certificates can be issued for a user, a device, or a service.
Install a certificate from USB drive storage
You can install a certificate that is located in the USB drive storage on your smartphone. For information on copying a certificate into USB drive storage, see Copy files between your smartphone and your computer.
1Open Device Info 
.
2Open the application menu and tap Certificate Manager.
3Tap 
and tap the certificate name.
Install a certificate from an email attachment
•Open the email attachment (see Open email attachments), and then tap Trust Certificate.
Chapter 13 : Preferences | 205 |