820-4924 Display Issues

[Puevig reven]

I have a 13" 2015 Macbook Pro that the LCD assembly was replaced by another shop. It worked for 3-4 months and now came into us without producing a backlight on startup and it will only boot with backlight into password recovery mode? We replaced the entire board (820-4924) but the issue still occurs. I tried a 820-3476 and there is backlight immediately on boot up and it boots fine into any SSD we put it into it. Obviously the other shop replaced the laptop with the wrong assembly. But my question is why did it work for a while? And what is the compatibility with 2015 LCDs screens?? I have seen some screens for sale that state they will only work on 90% of 2015 Macbook Pros. Also why are the 820-4924's only booting into password recovery mode?

 

[dukefawks]

2015 is 2015/16. Who knows why it worked, it is about EDID issues. Just use the correct parts and be happy.

 

[Puevig reven]

Hi Duke, Thanks for the response. Does the EDID issue cause it to only boot into password recovery mode? And will an 2015 LCD only fix the issue or do I need an entire 2015 display?

 

[dukefawks]

No idea, I do not support repairing retina LCD assemblies, waste of time, too many EDID issues.

 

[larossmann]

The EDID code in the screen shouldn't do that. Just use the proper LCD, 2013, 2014, 2015, 2016 etc are all available under $100 at this point anyway.

 

[Puevig reven]

Hi Louis
Where are you finding those prices? Everything I am seeing/purchasing is between 150-200.

 

[Puevig reven]

Duke where do you source the entire assembly from?