The LCD is a Tianma TM404abcw6 model
when I revert the ENABLE lines , what happens?
the other part of the lcd respond, I mean;

l-----------------------------------------l
l 2 x40 lines upper part l < Controled by e1
l-----------------------------------------l
l-----------------------------------------l
l 2 x40 lineslower part l< Controled by e2
l-----------------------------------------l