STM32WB15 Error: FUS_STATE_ERR_UNKNOWN: Unknown error

[freecoder]

Hi,

I'm faced to a problem and i'm no more able using the FUS in order to update the BLE STACK: i get this error message: "FUS_STATE_ERR_UNKNOWN: Unknown error when i clicked on the START FUS button on the STM32CubeProgrammer tools (V2.13.0)

we tried the action severals times and get same issue as shown in the attached screeshot.

is it mean that the FUS was erased ? and in this cas how to flash a new one using JTAG ?

Please give help to figure out this blocking issue.

[STTwo-32 · Accepted solution]

Hello @freecoder @and welcome to the ST community.

Could you please try to update your FUS using the STM32CubeProgrammer V2.20.0 and the FUS. bin file available on the STM32CubeWB V1.23.0.

Best Reagrds.

STTwo-32

[freecoder]

Hi @STTwo-32 , 

Thanks for your quick response. I confirm the issue is fixed by using STM32CubeProgrammer V.2.20 and the last FUS binary as you can see in the screenshot.

Best reagards,