s2-LP DK - application v1.2.1 - "wrong firmware detected" when opening com port

I am using nucleo-l053r8 and i flash it with S2LP_CLI_NUCLEO_L0 firmware. But when trying to open the port: i always get the message "wrong firmware detected. Please click OK to start upgrade procedure..."

I click OK, the firmware is succesfully flashed, but then the popup message is still repeated when trying to open the com port.

How can i open the port successfully?

I have also flashed the board succesfully over mbed interface and over keil microvision. The pop-up message still remains the same when opening the port.

I am using windows 10.

Any help is appreciated.