3 ms·Were you trying to flash while the device was on?by monocasa 6y agoWere you trying to flash while the device was on?merbanan 6y agoYes, the clip-on adapter could not power the chip in-circuit. So I use the power from the board. As I said this worked fine on some boards but not others.monocasa 6y agoI would see what's wrong with your clip. They're supposed to provide power.