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E
ethan2
Associate II
February 21, 2025
Question

STM32WLxx DFU Error

  • February 21, 2025
  • 1 reply
  • 1477 views

Hi,

I ported the SBSFU project to the LoRaWAN_AT_Slave routine, and tested DFU normally and it worked fine, but when I used the wrong file to upgrade, such as readme.txt, the upgrade process ran for a while, and then stopped, showed " Fw header authentication error" and "No valid FW found in the active slots nor new FW to be installed". As a result, the firmware of my application cannot run normally, and I must re-DFU the normal firmware before I can restore it. Is this normal?

ethan2_0-1740128888124.png

 

1 reply

STTwo-32
STTwo-32
Technical Moderator
February 21, 2025

Hello @ethan2 

Please add more details on your configurations what steps have you been following, what is the readme you are toking about, what is the "Wrong file"...

Best Regards.

STTwo-32

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E
ethan2Author
Associate II
February 24, 2025

Hi STTwo-32,

I refer to < UM2767-geting-start-with-the-SBsfu-of-STM32Cubewl-stmicroelectronics > for the upgrade. The error readme.txt simply means that I did not use the generated xx.sfb file, but imported a txt file.

 

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