Stlink not working

connected per pictures. Red and green light on on stlink board try to program, getting this error:

Warning: Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release!!!
No DFU capable USB device available

cortex debug extension installed

1 Like

Windows. Followed these instructions - Using Zadig to Reset USB Driver (Windows Only) · electro-smith/DaisyWiki Wiki · GitHub. The screen button showed “upgrade driver” instead of “replace driver”. Ran it, said success. Still does not work. Any other suggestions?
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No, might have some suggestions if you provide more details on the not working. Is it the same error as before Zadig ‘update’?

Yes, same error
Warning: Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release!!!
No DFU capable USB device available
Thanks!

It seems to me that Zadig is finding a ‘DFU capable’ device, and the program you’re trying to use is not. I can’t think of anything else to try, hopefully someone else will.

OK thanks. Also is it normal for the stlink board to feel warm?

anyone else can help, please???