I was testing the functionality of the board under os x. This involved the use of st-flash . It seems that the stlink part itself is still working but I can't communicate with the processor. Using usb mass to upload an application gives me back a fail txt log. Using st-info isn't useful as it does not recognize the processor. Is there any way (jtag, usart?) to recover erease or unbrick the processor? As of now I can't upload any application. Thank you!