If using a Macintosh computer, additional software is required in order to transfer files.
Connect the device to a computer using the supplied USB cable.
If necessary, touch and hold the Status bar (area at the top of the phone screen with the time, signal strength, etc.) then drag to the bottom.
The image below is merely an example.
Tap the USB icon then select Media Device (MTP).
Launch File Explorer or Windows Explorer.
Using the computer keyboard, press Windows+E (+E) keys.
Alternatively, right-click Start then click Open Windows Explorer or File Explorer.
Using File Explorer or Windows Explorer, navigate: BlackBerry STV100-2 > Internal storage > Music .
BlackBerry STV100-2 is listed under the Portable Devices or This PC section
Alternatively, explore external storage if unable to locate music files.
Utilize the computer to copy video or picture files into the appropriate directory: