CubeProgrammer FUS is not possible due to error: Rollback to older version of FW detected

[YJ99]

Hi Community,

I wonder if there is a way to revise a board with new FW upgrade. 

I am using STM32WB5xx Nucleo board and I did several FW upgrade and I guess I did something wrong in one of the FW upgrade. I have an error saying "Rollback to older version of FW detected.."

Is there a way to make my board completely erase and able to FUS?

thanks,

YJ

[STTwo-32]

Hello @YJ99 

When Anti-rollback is activated, it locks the version of wireless stack that can be installed.
It is impossible to install any wireless stack with a version lower than the current one. For example, if wireless
stack V1.9.0 is installed, when Anti-rollback is activated, only wireless stacks with versions V1.9.0 or higher can
be installed (it is no longer possible to install, for example, V1.8.0).

So, in this case you can use only FW Stack from a version equal or newer than the last FW installed. I suggest you try the last Version (available on the STM32WB V1.19.0).

Best regards.

STTwo-32

[YJ99]

Hi,

STTwo-32,

Unfortunately I did with v1.19 for this. If so, is there any other way to break this spell?

thanks,

YJ

[STTwo-32]

You can use only the firmware on the V1.19.0. Can you share your Cube programmer screenshot (the stack update tab)

Best Regards.

STTwo-32

[YJ99]

Hi STTwo-32,

This is the screen shots.

1. showing the FUS info

2. The FW i did select

3. before the FW upgrade click

4. After FW upgrade click

[STTwo-32]

I think you have activated the Anti-rollback without ensuring that a wireless stack is correctly installed. If so, the FUS registers 0xFFFFFFFF as the new version, and it is not possible to install a wireless stack.  So, no firmware update is allowed after that, and no recovery is possible at this point. For more details about Anti-rollback activation, I suggest you take a look at the part 2.4 of the AN5185.