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FUS_STATE_ERR_UNKNOWN || STM32WB50 Firmware update error

Aishwarya
Associate III

Attempting to update STM32WB50 Firmware using STM32 Cube Programmer in Boot mode (Boot0 pin connected to VDD)

  • download stm32wb5x_FUS_fw_1_0_2 - Start Address 0x080EC000
  • download stm32wb5x_FUS_fw - Start Address 0x080EC000
  • download stm32wb5x_BLE_Stack_full_fw - Start Address 0x080CB000

Errors

  • Program using ST link - Error: FUS_STATE_ERR_UNKNOWN
  • Program using UART -

Warning: Could not start FUS services since FUS is not in IDLE state

Timeout error occurred while waiting for acknowledgement.

Error: GETID command not acknowledged!

Observations -

  • Even after enabling them through our code, none of the external crystals are working. The controller is working on internal clock.
  • BLE not working, since the LSE is not working.
  • "Read FUS State" returns error.
  • Tried everything mentioned on this page.

We have encountered the same issues in two of our boards. Please note that we are following the exact procedures for FUS and Copro_Binaries upgrade as are mentioned in the Release Notes.

IT would be really appreciable if someone could guide us about what we are missing out, and how to restore the apparently dead controllers to their normal functionality.

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