For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
i put the 2012 13" retina display on the late 2013 and no video no backlight, but when i put it back on the 2012 i get video and back light. (was gonna remove the panel and put it in the 2013 lid so i have the correct isight cable)
You cannot remove a retina LCD without destroying it. Never try to swap LCDs on retina/air unless the backlight is fucked and the LCD is useless anyway.