Hi, i have a problem and don't find any solution yet. ​I do some mistake and st-link part of my board doesn't communicate to mcu part. ​Actually I'm not sure the problem but, when I search all internet and assume that the problems is this. ​When I co...

when i connect my nucloe f411re with usb, there is a 32kb mass storage. Also st-link utility program doesn't erase chip it error and says "cannot connect the target" but it perform firmware uptade successfuly.how can i reset the board? some people re...