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Recover after failed USB DFU

SLinux
Associate

‎2023-04-12 10:13 PM - last edited on ‎2025-12-05 6:25 AM by

Hello,

when I was Upgrading firmware (dfu) it got failed due to some bug in my code and the device moved to an unresponsive state is there any way to recover the device with USB ..

MCU: STM32L476.

Access: Only USB.

thanks in advance

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Imen.D
ST Employee

‎2023-04-19 12:25 AM - edited ‎2023-11-20 8:20 AM

Hello @SLinux​ and welcome to the Community :)

It would better to share the screenshot of your configuration and the message error, in order to help you.

I advise you to refer to AN2606 related to STM32L47xxx devices bootloader and check the needed configuration.


_legacyfs_online_stmicro_images_0693W00000biO1YQAU.png 

Imen

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Thanks
Imen
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