Do not pull by the cable or you can damage it. There is a short black tube on the left wire, long black tube on the middle wire and no tube on the right wire.Д¬arefully disconnect the webcam cable from the logic board. If you look closely, youвЂ™ll see that each cable is marked. Unlock the display LVDS cable by lifting up the metal bracket.Д¬arefully pull the display cable out of the connector.Дisconnect three antenna cables from the wireless card. Each bracket is secured by one Torx T5 screw. Try to keep the adhesive tape intact so you can reuse it. There is adhesive tape on the bottom side of the rubber cover. You should always disconnect the battery while working with the internal components.Д¬arefully lift up the battery connector and separate if from the logic board. Separate the bottom cover from the body and remove it. Two screws that I marked with yellow circles are shorter than screws marked with red circles. For this you will need a special P5 Pentalobe screwdriver. Reconnecting or replacing the display LVDS cable should be the first thing to try because itвЂ™s the cheapest option.ДЇor this repair you will need screwdrivers for Apple laptops. Bad connection between the display cable on the logic board or display side.WellвЂ¦ if you have a problem like that it can be one of the following: I confirmed the issue and it was exactly as described. Video still works on the external monitor connected via Thunderbolt or HDMI ports. I received this laptop with the following problem description: It turns on and chimes but has no video and no backlight.

2015 13 macbook pro retina lcd