MacBook Display Issues (2016-2020): Flexgate & Screen Problems

Introduction

Does your MacBook Pro display suddenly have stripes, flicker or show an uneven "stage light effect" at the bottom edge of the screen? Then you may be affected by the notorious Flexgate problem. We explain what causes it, which models are affected, and what repair options exist.

What is the Flexgate Problem?

Flexgate is a design flaw that mainly affects MacBook Pro models from 2016 to 2020. The problem arises from display cables that are too short or too delicate, which wear out from repeatedly opening and closing the laptop.

The Most Common Symptoms:

• Uneven lighting at the bottom edge of the display (the "stage light effect")
• Colored or gray vertical lines on the screen
• Screen flickering, especially when moving the display
• Complete display failure — the screen stays black

Which MacBook Models Are Affected?

Apple slightly extended the cable design from 2018 (from 2mm to 6mm), which reduced the problem but didn't completely solve it.

Recognizing Symptoms: Does Your MacBook Have a Display Problem?

Early Warning Signs (Stage 1):

• Occasional brief flickering when opening
• Slight brightness differences at bottom edge
• Display takes a moment to "wake up"

Clear Symptoms (Stage 2):

• Bright spots at the bottom display edge (stage light effect)
• Colorful or gray vertical lines
• Regular display flickering
• Pink or green color distortions

Critical Symptoms (Stage 3):

• Image only visible at certain angles
• Areas of the screen remain black
• Complete failure — no image at all
• White screen where only the backlight is visible

Technical Causes in Detail

1. Cables Too Short

The display cables in affected models are minimally sized. They are stretched and bent with each opening and closing.

2. Material Fatigue

The thin flex cables consist of delicate conductor tracks that can break through repeated movement.

3. Heat Development

The position of the cables near heat-generating components accelerates wear.

Solution Options

Short-term Measures:

• Try adjusting the display angle — find one where the problem is minimal
• Use an external display as a temporary solution for important work
• Handle carefully and avoid frequent opening/closing

Permanent Repair:

Repair Costs

All prices include installation and warranty. You'll receive an exact price after free diagnosis.

Preventive Measures & Free Cleaning

Even though the problem is design-related, you can extend the lifespan:

Prevention Tips:

• Always open the display from the center, slowly
• Don't open beyond 120°
• Don't place anything on the MacBook during transport
• Keep hinges clean and dust-free
• Be aware that extreme cold makes cables brittle
• Use a padded bag for transport

Other Display Problems (Not Flexgate)

Not every display problem is Flexgate. Here are other common causes:

LCD Panel Defects:

• Dead pixels — individual dots stay black or white
• Pressure marks — dark spots from mechanical pressure
• Display crack — spider web pattern after a drop
• Liquid crystal failure — black spots spreading across the screen

Graphics Chip Problems:

• Horizontal stripes, often pointing to a GPU problem
• Artifacts like geometric patterns or colorful blocks
• Kernel panic — system crashes under graphics load

Software Problems:

• Problems appearing after a macOS update (driver incompatibility)
• If an external monitor works fine, it's usually a software issue
• If Safe Mode works, there's likely a software conflict

Display Technologies Compared

Mini-LED (MacBook Pro 14"/16" from 2021)

• Near-AMOLED contrast with local dimming zones
• 1600 nits peak brightness
• ProMotion 120Hz
• Blooming effect possible in dark scenes

Liquid Retina (MacBook Air M2/M3)

• IPS LCD with LED backlight
• 500 nits brightness
• P3 color gamut
• Even illumination

Retina Display (Older Models)

• Standard IPS panel
• 400-500 nits
• sRGB color space
• 2016-2020 models: Flexgate-prone

Spare Parts & Repair Options

For detailed information on available spare parts, visit our Display Parts Overview.

All display repairs and pricing details are available on our MacBook Display Repair main page.