If you are installing firmware from a different carrier than your original one: Install the downloaded firmware on your PC.
How to Perform a Firmware (OS) Update on the BlackBerry Bold 9780 Firmware Change Update on BLACKBERRY 9780 Bold
If native applications like the browser or media player are missing, rerun Loader.exe and check the corresponding checkboxes in the application selection menu. If you are installing firmware from a different
Download and install the (Version 7.1 or compatible legacy version) on your Windows PC. Firmware Change Update on BLACKBERRY 9780 Bold