Chosen Solution
Hi there, I have horizontal lines, across my Macbook. I tired to connect it with the external Monitor & it works fine with it, no horizontal lines with external monitor. Tried running Mac Diagnostic, No error codes all it say is I have a poor Battery life, which is guess is fine since this Mac is 2015. Please help me with this? is there a way to fix this issue.
Sadly, you damaged the display assembly. You’ll need to replace it, here’s the IFIXIT guide you’ll need to follow: Retina MacBook 2015 Display Assembly Replacement and heres the needed part: MacBook 12" Retina (Early 2015-2017) Display Assembly
