Chosen Solution
i updated the latest ios 6.1.3, After that on the screen some coloured horrizontal lines are flickering. for example when u select an contact from phone book the contact is heighled in blue color the colored area is displayed as scarched line, the same colored lines are displaying on the camer when there is adark shades.
That sounds more like a problem with the LCD than the software. But I would try to hard reset the phone first. Hold the power and home button for about 10 seconds. Phone should shut off and restart. If that doesn’t work try doing a backup and then restoring the phone in iTunes. If it is a software glitch that should resolve it. If not I would guess a hardware problem. May just be coincidence that it started after the update Hope this helps!
Same problem here. I tried to reset the phone. After restoring it iTunes says, that there is a SIM-Card in the phone with a Pin, but I cannot enter it, because the screen is still white going black with all the lines. And: the phone vibrates every 5 seconds.
David sounds like the screen is badly damaged a replacement will sort it out
