The NUCLEO-WBA55CG with MB1801-NoUSB-D02 has a different configuration for reset management compared to earlier versions.
In the default configuration, the reset via mass storage and the reset via debugging tools are disabled, which may cause issues during tests or applications. For instance, if the ST-LINK firmware has mass storage enabled, the application does not function with the board's default configuration.
To enable these reset sources, close SB30 on the back of the NUCLEO MB1801-NoUSB-D02.
For the next production version (MB1801-NoUSB-D03), SB29 and SB30 will be closed by default, enabling all reset sources to function.
To identify your board revision, refer to the image below.
