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The Details: Late 2013 Macbook Pro Retina2.0 Ghz i7 w/ 8gb ramIntel Iris graphicsOS X - High Sierra 10.13.2 The Problem: Display isn’t being seen by the logic board after removing logic board for battery change, but laptop works using a external monitor. Not a blown backlight, no video is getting to the screen. Everything else with the laptop is fully functional and display was working before service.Not sure if I need to replace the screen, logic board, or worst case scenario, both. Troubleshooting steps taken: Reboot in SMC, PRAM - No ChangeCheck screen cable/connection - No changeChecked for video using a flashlight - No video seenRebooted in diagnostics, was given “There may be an issue with the display” and “There may be an issue with the grapics processor” followed by the codes VFD002, VFD005, addt’l codes VFD004, VFD001Visually inspected screen cable, screen cable socket and could not see any noticeable damage. Detailed Description: Prior to the incident, laptop was working normally, no known issues. Battery was at around 1500 cycles and was getting pretty tired so I decided it was time to replace. Followed the full tear-down instructions here on ifixit and used the ifixit battery kit. Only issue from the teardown was a coworker came and distracted me while I was starting out, leading to me forgetting to disconnect the battery until right after I removed the SSD. Once I noticed this, I disconnected the battery and continued the process. Swapped in the new battery and reassembly was uneventful. Attempted to turn on the laptop and got the normal boot chime but a black screen. Checked with a flashlight to see if the backlight was just failed, and nothing. Rechecked the screen cable and no issues found. Did a PRAM and SMC restart, nothing. Plugged in the laptop to an external monitor through HDMI and everything is functioning normally. Checked the system information and the external monitor was listed there, but the retina display was not listed. I also tried unplugging the monitor and taking a screen shot just for giggles and no change. It seems to me like the logic board just isn’t recognizing or able to find the display. Any thoughts on how to fix this or test to see whether the problem lies with the screen or with the logic board? Thank you! NOTE: S24D300 is my 24" Samsung monitor Relevant screenshots
UPDATE: PHOTOS OF LVDS CABLE AND CONNECTOR ON LOGIC BOARD
Sounds like you may have not fully reseat the cable or damaged the display cable or its connection on the logic board. Can you take some good detailed images of how it looks now and the cable’s end (both sides) as well as the logic board connector. Do make sure you’ve disconnected the battery first. Adding images to an existing question
I have a similar issue with a MBP retina 13". I was told that it might be the fuse for the display (there’s a small white letter P on the fuse). I’m waiting for the part to come in so that I can replace the fuse.
