samsung sm-j105f (blank / no light display) damage: blank dark, as the lights off. according to the owner, touchscreennya also problematic. analysis: one lcd connector pin broke. it has been mutually lcd remains the same. solution: try jumper pin point break, the display remains blank. try cleaning the connector with thinner, sometimes appear, sometimes lost again. try resolder legs pin lcd connector board and the lcd itself, a success. in the condition is already on, try to measure again dots lcd voltage measuring vital, as the data obtained in the image.
