machan,
mage iphone 4 eke display eka hellenna gaththa ada ude indan.. :(
seems like digitizer / display ribbon should be replaced. moko karanne..
exact problem is like this:
http://youtu.be/fWfPu1OA92E
http://youtu.be/fWfPu1OA92E
lankawe eka daaganna place ekak kiyanawada.. charges...