Once your device's connected to computer, then you can transfer file from your computer to your phone, and otherwise. You will find this USB driver utility very handy for file / data transferring activity. And all the USB drivers here are originally from BQ and can be downloaded and installed for free.
Are you interested? Then you may continue to the following list below. Find your model from the list guys.
Download BQ USB Drivers
|No.||BQ Smartphone Model Number||Drivers|