Changing Contrast

That's because I don't believe it is possible...

you can change the testing of the contrast by using the code to bring up the system information and service locks and the hard reset, i forgot that code

There is a special state-of-the-art, contrast control mechanism built into the phone, it is operated by a sophisticated motion and gravity detection sensor, tilt it forward and the sensor would detect the change of position and make the screen darker, correspondingly to how many degrees you tilt it, tilt it backward and it would sense movement and make the screen lighter, try it.

I heard SE spent, hundreds of millions of dollars developing this system to include it into the P900. =-)

yes, i heard something about that, sony putting in thousands of dollars to supply such state of the art technology into this particular handset,

nokia tried to retalliate but could only supply explosive batteries

ROFL!!

BTW:Explosive batteries have been invented by Erricson and Nokia long time ago. 😉