If you own a MacBook Pro released between 2016 and 2020, you may have noticed strange dark patches at the bottom of your screen or a display that suddenly goes black when opened. These symptoms are collectively known as “Flexgate”—a hardware failure that has affected thousands of users and led to extensive repair programs.
Understanding how to identify these issues early can save you from a permanent blackout and help you determine if you qualify for a free repair from Apple.
Table of Contents
- What is Flexgate? The Engineering Flaw Explained
- Step-by-Step: How to Identify “Stage Lighting”
- Testing for Flexgate Angle Failure
- Affected MacBook Models
- Is Your Repair Covered?
- Summary of Key Takeaways
- Sources
What is Flexgate? The Engineering Flaw Explained
The term “Flexgate” refers to a design flaw in the thin flexible ribbon cables that connect the MacBook’s display to the controller board (T-CON board) located under the Touch Bar area.
In previous models, Apple used heavy-duty wire cables routed through the hinge. Starting in 2016, they switched to thin, integrated ribbon cables that wrap around the hinge [1]. According to hardware analysts at iFixit, these cables are pulled taut every time the laptop is opened. Over years of normal use, the repeated tension causes the delicate traces inside the cable to fatigue, tear, and eventually fail.
Because these cables are built into the display assembly itself, they cannot be swapped out individually. When the cable breaks, the entire screen typically needs to be replaced, which can cost upwards of $600 out of warranty [2].
The issue is caused by thin, integrated ribbon cables that wrap around the hinge. These cables are pulled taut every time the laptop is opened, causing the internal traces to fatigue and tear over time.
No, because the cables are built into the display assembly itself. A failure usually requires a full replacement of the screen, which can be quite expensive out of warranty.
If the device is not covered by a repair program, a full screen replacement can cost upwards of $600 at an Apple Store.
Step-by-Step: How to Identify “Stage Lighting”
The most iconic symptom of Flexgate is the “Stage Light” effect. This occurs when the backlight cable begins to tear but has not yet severed completely.
1. Check the Bottom Edge of the Screen
Look at the very bottom of your display while a light-colored background (like a blank Google Doc) is open. If you see alternating patches of bright and dark light—resembling the footlights on a theater stage—your backlight cable is failing [3].
2. Monitor for “Spotlighting”
In the early stages, this might only appear as subtle dark “V” shapes rising from the bottom of the bezel. This is a sign that the individual LEDs providing the backlight are losing their connection to the logic board.
3. Test the Brightness Levels
Rapidly increase and decrease your screen brightness using the Touch Bar or function keys. If the “stage lights” flicker or significantly change in intensity compared to the rest of the screen, the hardware failure is confirmed.
It appears as alternating patches of bright and dark light along the bottom edge of the screen, resembling the footlights used on a theater stage.
Open a light-colored background and observe the bottom edge for dark ‘V’ shapes. You can also rapidly change brightness levels to see if the stage lights flicker or change intensity independently.
No, spotlighting is an early symptom indicating that individual LEDs are losing their connection, but it often precedes a total backlight failure.
Testing for Flexgate Angle Failure
As the ribbon cable damage progresses from Stage 1 (visual glitches) to Stage 2 (physical fracture), the display will begin to fail based on the physical position of the lid.
The 40-Degree Test: Open your MacBook lid very slowly. Many users report that the screen works perfectly when opened to a 30 or 40-degree angle, but goes completely black once opened further [1].
The Inversion Glitch: In some cases, opening the lid past 90 degrees triggers vertical lines, graphical artifacts, or inverted colors. This indicates the data transmission traces—not just the backlight power—are being pinched.
If you find that your MacBook display only functions at specific angles, this is a definitive diagnosis of Flexgate. For those dealing with software-side glitches rather than hardware ones, you can refer to our guide on how to troubleshoot and fix common PC issues to rule out operating system bugs.
This test involves opening the lid very slowly to see if the display works at a narrow angle (30-40 degrees) but goes black once opened further, which is a definitive sign of cable damage.
This indicates an ‘Inversion Glitch,’ suggesting that the data transmission traces are being pinched or damaged, not just the backlight power cables.
No, if the screen behavior changes based on the physical angle of the lid, it is a hardware failure that cannot be resolved with software troubleshooting.
Affected MacBook Models
While the issue is most prevalent in the 2016 model year, it has been documented across several generations. According to Candid Technology, the primary models at risk include:
MacBook Pro 13-inch (2016–2017): Includes both Touch Bar and Two Thunderbolt Port models.
MacBook Pro 15-inch (2016–2017): Highly susceptible due to the larger, heavier display putting more tension on the cables.
MacBook Pro 13-inch (2018–2020): While Apple lengthened the cable by 2mm in 2018 to mitigate the issue, iCorrect reports that users of the M1 2020 models have still encountered similar “stage lighting” symptoms after 2-3 years of use.
| Model Year | Display Size | Issue Severity / Status |
|---|---|---|
| 2016–2017 | 13-inch | High (Covered by Apple Program) |
| 2016–2017 | 15-inch | High (Not Covered by Apple) |
| 2018–2020 | 13-inch | Moderate (Longer cable, still fails) |
| 2020 (M1) | 13-inch | Low to Moderate (Community reported) |
The issue is most prevalent in 13-inch and 15-inch MacBook Pros from 2016 and 2017. However, reports of similar issues exist for models up to 2020.
Apple lengthened the cable by 2mm in 2018 to reduce tension, but users of 2018-2020 models, including M1 versions, still report similar stage lighting symptoms after several years of use.
Yes, they are highly susceptible because the larger and heavier display puts even more tension on the internal ribbon cables compared to smaller models.
Is Your Repair Covered?
Apple eventually launched a formal 13-inch MacBook Pro Display Backlight Service Program. This program covers the 13-inch MacBook Pro (2016) for up to five years after the first retail sale of the unit or three years from the program start date.
Critical Note: As of 2024, many 2016 units have aged out of this program. Furthermore, Apple notably excluded 15-inch models and 2018+ models from the free repair program, despite users on Reddit and community forums documenting identical failures in newer machines [4].
It is a formal program that covers 13-inch MacBook Pros (2016) for display issues for up to five years after the original purchase date.
Generally, no. Apple notably excluded the 15-inch models and 2018+ models from their free repair program, despite these machines showing identical failure symptoms.
You can look for independent repair shops that specialize in micro-soldering. They can often repair the existing cable for a fraction of the cost of a full display replacement.
Summary of Key Takeaways
Identifying the Symptoms
Stage Lighting: Look for dark and light “wedges” along the bottom of the display.
Blackout: Check if the screen turns off when opened past a 40-degree angle.
Artifacts: Watch for flickering or vertical lines that appear only when moving the lid.
Action Plan
- Identify your model: Click the Apple Menu > About This Mac to see the year and size.
- Backup Data: If you see “stage lights,” your cable will likely fail completely soon. Use Time Machine to back up immediately.
- Check Warranty/Program Status: Visit the official Apple Service Program page to see if your 13-inch model qualifies.
- Seek Alternative Repairs: If Apple denies coverage, look for specialized independent repair shops that can perform “micro-soldering” to extend the flex cable, which is often significantly cheaper than a full display replacement.
Flexgate is a frustrating hardware reality for the “Touch Bar era” MacBooks. By catching the symptoms during the “stage light” phase, you can prepare for the inevitable repair before the device becomes unusable as a portable machine.
| Symptom/Step | Key Detail |
|---|---|
| Identify Symptom | Spotlight effect at bottom or black screen past 40° angle. |
| Check Eligibility | Only 2016 13″ models are officially covered by Apple. |
| Immediate Action | Back up data via Time Machine before total display failure. |
| Repair Options | Official Apple replacement or independent micro-soldering. |
Back up your data immediately using Time Machine. This symptom usually means the cable will fail completely soon, making the device unusable as a laptop.
Go to the Apple Menu > About This Mac to identify your model year and size, then visit the official Apple Service Program page to check for eligibility.