Thin Horizontal Lines On Screen Macbook Pro 13 Touch Bar 2018

Chosen Solution

When you turn on the laptop, a thin horizontal black line appears that occupies the entire screen. Curiously, they are removed by lowering the screen and leaving it approximately 5 fingers. Update (01/16/2022)

Ouch! I’m suspecting the ribbon cable connection to the LCD has become damaged. So its making and breaking contact. Sadly, this requires a new display assembly MacBook Pro 13" Retina (Mid 2018-Mid 2019) Display Assembly And here’s the guide MacBook Pro 13" Touch Bar 2018 Screen Replacement