원문 게시자: Robert ,
The display cable may have come loose, so before you replace the display, follow [guide|21068|this guide] and make sure that the display data/digitizer cable is properly seated and is not loose. Disconnect the device from power and shut it down before opening, and disconnect the battery before attempting to touch any other connections. Reassemble the device and turn it on. If this doesn't change anything, you can order a replacement screen [product|IF126-000-3|here].