when i reconect everything i have my backlight back and can see the first row of black collums just like in picture.
when i reconnect everything like post 1 and disconnect the data lines between lcd-arduino, the lcd just shuts down completly
but the strange thing is: when data line 4 (D4 lcd) is connected to the apropiate pin on the arduino (digital 5) -> the lcd is back /online / the circuit somehow is complete agian and i see backlight with collums just like the picture posted before.
and when i disconnect vdd (5+) pin or pin 15 (pin A), only the backlight goes down, i can still see the collums bieng black (1.st row) (note: everything else is conected)