on the one i have as you see there is no Vop pin. This pin as from the code i see that is connected to ground through a 4.7uf capacitor and controls the Contrast.

The point is that on the LCd i have there is no Vop pin. So how can i control the Contrast.

If anyone have the display 5110 nokia from sparkfun, could make it easier if he can upload the schematic and a simple code.