820-3462 no image

[PhilipC]

Severely fucked macbook arrived, cable to one fan is cut keyboard connector has been molested and the battery connection block thing was put in the wrong way round.
After putting the battery connector block in the right way, it chimes and boots but no image. External display working fine, the display connector hasn't been fucked with. I can see all the pins inside and they look perfect and so does the cable, unfortunately, havent got any extra 13" retina screens to test


LCD_PWR_EN is 0v
SMC_LID is 3.4v

 

[dukefawks]

First thing is to check with a known good LCD then check for missing components in the eDP lines to the LCD connector.