Power leds are blinking

[MÖZDA.1]

 

Hi I don’t know the reason, but my board’s ld2 and ld8 leds are blinking, and the program says  No STLink detection, even if I connect it to the usb port, what can be its reason? How can I fix it?

[AScha.3]

Hi,

did it work before ?

"Happened" something , like a short, connect voltage to some pins ...etc ?

[MÖZDA.1]

Yes , it was working, there can be short connection, I was not ahead of it