Pinout is ok...
lcd.begin(true, 0xB2, 0x04,0x12);
I can see that the LCD is alive... When I use lcd.begin(false, 0xB2, 0x04,0x12);, it iverts the colors as it should do...
It flickers very fast and i can see the "shadow" of the "TEST" written... It seams that the LCD is reseting by itself. After the lcd.begin(false....) it doesn´t mantain the inverted state, just for a few mili-seconds and then came back clear.
Maybe my LCD was dead on arrival... Any clues? I´ve tried to change contrast and the other stuff as you mentioned on page 4...