STM32WB55RG - Wireless Stack Installation Fails Due to Anti-Rollback or Corrupted FUS

[yougan12]

I am currently working with the STM32WB55RG microcontroller on the NUCLEO-WB55RG development board and am encountering an issue while attempting to install or update the BLE wireless stack using STM32CubeProgrammer.

Upon attempting to start the wireless stack or upgrade FUS, I receive the following error:

 

Error: FUS_STATE_IMG_NOT_FOUND: Firmware/FUS upgrade requested but no image found.

(such as image header corrupted or flash memory corrupted)

Error: Start Wireless Stack Operation Failure! Please, try again

 

I would appreciate guidance on:

• Confirming if anti-rollback is active on this device
  
• Whether a forced FUS or stack reinstallation is possible
  
• Any tools or procedures to resolve this state

Please let me know if any additional logs or files are needed for diagnosis.

[Aziz BRIGUI]

Hello @yougan12,

I will try to address your questions one by one: 

1. Confirming if anti-rollback is active on this device: The Anti-Rollback error is a return from FUS when trying to upgrade => If the pop-up appears, it means that anti rollback is activated.
2. Whether a forced FUS or stack reinstallation is possible: FUS upgrade is possible, refer to section 3.3 in this wiki STM32WB Firmware Upgrade Service - stm32mcu for more information on FUS version compatibility.
3. Any tools or procedures to resolve this state: If Anti-Rollback is activated, it cannot be deactivated and only stack upgrade is possible (Moving from an older version to a newer one).

Hope this helps!

Aziz

[yougan12]

Hi Aziz BRIGUI,

Thanks for responding to my request.

Can I know if the stack reference version is considered as 0xFFFFFFFF (while no stack installed and anti-rollback is activated), so no firmware update is allowed after that. whether there is support or documented way to recover the device or bypass this restriction. The board is effectively locked for wireless stack use

[STTwo-32]

Hello @yougan12 

As you can see in the chapter 2.4 of the AN5185 Rev11, « Before activating Anti-rollback, ensure that a wireless stack is correctly installed, and that it has not been deleted. If it is activated without any wireless stack installed, the FUS registers OxFFFFFFFF as the new version and it is not possible to install a wireless stack.

Best Regards.

STTwo-32