For BlackBerry smartphones running BlackBerry® Device Software 4.5 to 5.0:
On the Home screen of the BlackBerry smartphone, click the Options icon, then select the About option.
Check the screen to confirm that the BlackBerry smartphone is running BlackBerry Device Software version 4.5 or later.
If the BlackBerry Device Software version is earlier than 4.5, upgrade the BlackBerry Device Software. For instructions, see KB03901.
On the Home screen of the BlackBerry smartphone, click Browser.
Press the Menu key, and click Options.
Click Cache Operations.
Click Clear on the corresponding cache items that are to be removed.
For BlackBerry smartphones running BlackBerry® 6 and BlackBerry® 7:
On the Home screen of the BlackBerry smartphone, click Browser.
Press the Menu key, and click Options.
Scroll to the very bottom of the options list where there will be a section called Clear Browsing Data.
Select the desired options and choose Clear Now.