Cant upgrade ble stack and FUS version on STM32WB55RG nucleo board

[Stm325]

Hi, I was trying to upgrade my ble wireless stack from CubeProgrammer but everything give me this error. I tried to install stm32wb5x_FUS_fw or stm32wb5x_FUS_fw_for_fus_0_5_3 to their correct addresses from release notes but nothing works. I am able to flash code from cube ide but these wont work. I can start FUS or take BOOT0 to 1 but these did not work too. 

Only thing I have in my mind is maybe my cube programmer. Due to language settings my cube programmer installation step 8 is stuck(I read this error from the forum too) but I can access to cube programmer from program files and it can connect/read/flash so I dont think this is the problem too. 

On the board RX/TX pins between st link and mcu are not connected but it should not be the problem as well because I am using st link and can flash anything from cube ide

[Imen.D · Accepted solution]

Hello @Stm325 ,

Which STM32CubeProgrammer version used? Make sure to use the latest release.

Try performing a mass erase before uploading any FUS file.

Please have a look at this wiki page which describes how to upgrade BLE stack and FUS.

[Stm325]

I thought I already did mass erase but apparently I did not and mass erase worked perfectly. Thank you so much!