Hi to all, this is my first message and don't know if i'm doing it in the right way.
I just bought the same usbasp of yours and followed the entire guide in order to update the firmware of my transistor tester. I've already made all the connections and tested if there is continuity between the cables, following the scheme, and using the string in the first post, but i always have the sck error. I just have one usbasp and becouse of this i can't update his firmware..
Can you help me please?