first off, are you talking official micro?
you can get a board labeled micro, nano or mini on e-bay and all get the exact same board. and not one having the pin-out that matches the official version.
google arduino micro and look at the official data sheet.
if your board does not look like that, exactly like that, then your 'clone' may be different and probably is.
that official data sheet will give you a clue to what you can do.
if your board is not an official board, then google arduino micro pin out and see what you might have.
as raschemmel pointed out, pins on the board may be connected to other pins. just because there is a separate connector does not mean is is a separate circuit.