Upgraded FUS and ble stack not compatible with older firmware codes

[ivan02]

Hi, 

Recently I have mistakenly upgraded to FUS 2.0 and BLE stack 1.22.1 for my stm32wb5mmg chip. I was using FUS 1.2.0 and BLE stack 1.22.0.2 before and the system behaves perfectly fine with the firmware on hand. After upgrading it the device doesn't seem to be advertising and couldn't be detected by any other devices. I have notice that it is impossible to downgrade the FUS version is there a way to tackle the issue? If I wanted to erase the whole chip and copy the memory of a working chip, is that possible?

[STTwo-32]

Hello @ivan02 

Are you aware of the following notes:

STM32Cube_FW_WB_V1.22.1/Projects/STM32WB_Copro_Wireless_Binaries/STM32WB5x/Release_Notes.html. Could you please try to connect throw USB, Update FUS and Stack and click on the button "Start Wireless Stack" (you may need to click twice if it generates an issue on the first click). If you still have an issue, Please send me the screenshot of the FUS information (similar to this one):

Best Regards.

STTwo-32

[ivan02]

Hello @STTwo-32,

The board that I am having does not have a usb port configured. Does that means that it is impossible to install the wireless stack?

Best regards,

ivan02

[STTwo-32]

For now, as you can see on the first warning "With FUS v2.0.0, Coprocessor Binaries can be installed only through the USB interface". This limitation should be fixed on the future.

Best Regards.

STTwo-32