Chosen Solution
Good evening I’ve bought it from Gumtree and now I’ve got problem. The problem what I’ve got is display shows “glitches” (colourful mostly horizontal lines) - strange thing is - only on white background - when connected to TV - it is fine. Case/lid got no any signs of damage. I was wondering it just display flex would fix that - www.ebay.co.uk/itm/401409712743 Apple says “just” £500 for fix which is a bit - oh jesus christ :( Thank You Bart Update (02/02/2018) …additional informations. When I purchased it - it had…. El Capitan on it. Glitches horizontal lines are/can be everywhere on display (not just in one specific place) when booted. Not a single glitch when white Apple boot logo on black background + white progress bar + text about how much time to complete installation. It has SMC 2.35f105 - but BootROM bit old (I think - MB91.0159.B00) - I’m doing now Combo Update 10.13.3 - hoping it will update it.
In this photo glitches “fallow” the window when it is moved around
mmm … Well I don’t think the cable is the issue here. Lets look at an example to put this into perspective. Hopefully you remember the old analog TV with antennas & rabbit ears ;-} Do you remember having to twist them every which way to get a good signal? And now how much better over the air digital TV is. You don’t get the smear or noise of analog, instead you’ll see a freeze up and checkered boarding when the signal gets interrupted. So what does this have to do with my problem! Quite a lot! Before we had retina displays we had an analog signal (LVDS) in the systems where you would get smearing and noise as well as color shifting when the cable was damaged. Today we have iDP which is a digital signal (internal DisplayPort) just like your digital TV if the signal to the display was getting messed up you would get a similar condition. Which is not what you are seeing! So what is it? Sadly, I think your display is damaged. On the back side is some circuitry which converts the iDP signal to the needed signaling the display uses to create the image. This logic is where the failure is. I can’t explain what happened here, it could be liquid damage or something pressed on the lid or just be a bad part from Apple. Update (02/20/2021) Time for a new display ;-{ Here’s the needed part MacBook 12" Retina (Early 2015-2017) Display Assembly and here’s the guide to put it in Retina MacBook 2016 Display Assembly Replacement Update (02/21/2021) The display cables which get damaged
