How to connect to the RF-SoC 2x2 with Vivado HW Manager

Hi everybody,
I’m now writing because I’m working with the RF-SoC 2x2 (the board and Pynq framework are running correctly), and I’ve come across a critical problem: when I want to transfer the bitstream on the board the Vivado Hardware Manager does not detect it, so I’m wondering whether I’m doing anything wrong or if I have to install some drivers or purchase any external circuit.
Thanks in advance to anybody answering to this topic :slight_smile: