FUS_STATE_IMG_NOT_AUTHENTIC during upgrading the FUS

[fo]

Hello,

We try to upgrade the BLE stack to the latest 1.23.0. This version requires FUS v.2. We are unable to do this due to the FUS_STATE_IMG_NOT_AUTHENTIC error. We're using STM32CubeProgrammer v. 2.12.0. We have also tried with STM32CubeProgrammer v. 2.20.0following the steps in the release note of the binary files with the same result. 

Currently:

- FUS version: 1.2.0.0

- BLE stack version: 1.8.0.3.

We tried on both out custom board and on NUCLEO-WB44 with the same result. Could someone guide us to a solution?

Thanks in advance.

[STTwo-32]

Hello @fo 

Could you please try to do that using the STM32CubeProgrammer V2.20.0.

Best Regards.

STTwo-32

[fo]

Hello @STTwo-32 

I've tried  following on NUCLEO-WB55 using STM32CubeProgrammer v. 2.20.0:

- Upgrade to FUS v1.2.0 for verifying the process: Success

- Upgrade to FUS v2.0.0: Success

- Upgrade to FUS v2.1.0: Success

On our custom board none of the above was succeeded. We only get FUS_STATE_IMG_NOT_AUTHENTIC error.