STM32WB55 Firmware and Stack update

[PMato.1]

Hello

I am updating the firmware and stack of my stm32wb55 using cubeprogrammer but it stops on firmware delete succefully then it gives me an error message

FUS_STATE_IMG_NOT_AUTHENTIC: Firmware/FUS upgrade requested, image found, but its signature is not valid (wrong signature, wrong signature header)

How do i solve this 

Thank you

[STTwo-32]

Hello @PMato.1 

Have you followed the steps on this video and this wiki. After following those steps, if the problem still there, add some screenshots of your error and the Existing FUS and Stack on the Board.

Best Regards.

STTwo-32