.clean lcd jack with electronics cleaner and dry it with hot air or an electrical bulb for a few mints.check these two ic and also prints that are shown with different colors so that can be found easily and separately.check these links with meter and if any of them is broken make these jumpers.to short jumper lcd display ic you can see blue and light green round circles shows in two box with red lines.so you can replace these two ic or can jumper them as shown in diagram.it is recommended to replace ic but you can also jumper them.