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Nucleo LD1 Light dims after sometime and St-link is not recognized by the laptop

Lakshay
Associate

‎2025-07-19 7:15 AM

I have an STM32F401 nucleo board and it used to work fine but now after a minute of connecting it with usb, the LD1 suddenly dims to very low light like pin on float. Before that it works fine, I can program it, debug it.

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Amel NASRI
ST Employee

‎2025-07-23 2:22 AM

Hi @Lakshay ,

Try using STM32CubeProgrammer to check if you can connect to the board. Probably you need ST-Link firmware upgrade.

-Amel

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