BlueNRG-2 disappeared/closed while trying to program STEVAL IDB008V2 Development Kit

[Esami.1]

Hi guys,

I have STEVAL IDB008V2 DK board and install BlueNRG-2 Navigator. The board appears in device manager as a VCP10, also recognized by BlueNRG-2 Navigator (meaning flash and run is activated). However, when I try to program it using any pre-build examples in BlueNRG-2 Navigator by pressing flash and run, after a few seconds, the BlueNRG-2 Navigator is closed/disappeared and nothing happen!!

I also try to program it using GUI by pressing putting the board in DFU mode, but also doesn't help!

Any idea would be highly appreciated in advance!

Regards

Edmond