ST Link V2 "No STLink detected" in STM32CubeIDE and ST Link Utility

Question

The device was working fine till last week, now when I try to debug the STM32cubeIDE indicates "No ST Link found". On hardware side, there are no LED glowing on the STLink board.

Before concluding that the STLink V2 is dead, I would like to check if there are any workaround to try to revive the device, if I try to upgrade the firmware, then the STlink V2 is not detected as expected. The same observation is in the ST Link Utility tool. Is there any other way that I can try, request for suggestions and help.

I am using windows10 PC.

Thank you.

Answer 1

Things to check

• Change the USB-cable with a known working one! Even USB-cables get defect. It took a colleague of mine some time to find a short in a USB-cable.
• Check the windows 10 device manager: Under USB-devices a STM32 STLink should be visible.
• Unplug/replug the board while you are in device manager. Is there some change in the device list (driver issue)?

When the device manager shows the STM32 STLink you also could try the STM32CubeProgrammer. Different tools from ST behave differently.