Sounds like either the display got knocked loose or it is damaged. You can try contacting the manufacturer about a repair (see if they will cover it) or void the warranty (if the drop didn't) and use a local tech for the repair.
Sounds like either the display got knocked loose or it is damaged. You can try contacting the manufacturer about a repair (see if they will cover it) or void the warranty (if the drop didn't) and use a local tech for the repair.