STEVAL-STWINBX1 datalogger - bricked board since flashing with Segger J-Link
I am using the STEVAL-STWINBX1 development board and have downloaded the FP-SNS-DATALOG2 software.
I have a Segger J-Link Base and tried to flash the software to the board using STM32Cube IDE, but the flashing failed and now the board has stopped working.
During the flashing procedure, I got the following warning which I clicked yes to...

And now I get the following error...

The board is connected to the battery and also USB to the PC as well as the Segger J-Link.
The power LED is flashing at about 4Hz, but the other LEDs are off.
I cannot even get the board to start in DFU mode (by holding the reset button whilst connecting the board to the USB lead).
And I cannot connect to the board using STM32Cube Programmer.
How can I get the board working again ?
