He may not have corrected Raschemmel's noted problem until
he rewired the setup.
that's probably true but all I am trying to do is get him to acknowledge that he understands the correct wiring because he could just have easily have got it working by accidently wiring it correctly , couldn't he ? (in which case he would still not know how it SHOULD be wired)
I don't know why it is so hard for him to say:
Got it. SDA= A4, SCL= A5.
Is that so hard ?