Hello, thank you for the replies.
I have managed to get my hand on a ST-LINK v2 instead and managed to connect the board to the ST-Link properly (I think) but I still have issues programing the devBoard with STM32Cube Programmer.
In the documentation they simply say to " hold RESET Button of your Device, then click Connect and release RESET Button". I did just that a few times and got 3 different errors.
“No STM32 target found”: This one seems to occure when I release the button with the wrong timing.
“ST-Link Error (DEV_TARGET_CMD_ERR)” I’m not why this one is shown.
“Error: Cannot connect to access port 1! If you are trying to connect to a device with TrustZone enabled please try to connect with HotPlug mode. If you are trying to connect to a device which supports Debug Authentication with certificate or password, please open your device using it.”
I’m not sure where to go from here.