FixStory Repair Journal

A Cracked MacBook Pro Screen, Good as NewMacBook Pro 13" (2018 · Touch Bar) A1989 — Full Display Assembly Replacement

A MacBook Pro 13" (2018, Touch Bar, Model A1989) came in with a cracked display — the lower half of the screen covered in colorful vertical lines after a drop. On this generation of MacBook Pro, the Retina display is a fused unit: glass, LCD, and backlight bonded together at the factory, so the glass cannot be replaced on its own. We replaced the entire display assembly (the lid) — camera, microphone, and Wi-Fi antenna included.

MacBook Pro 13" (2018)Model A1989Drop damageDisplay assembly replacementDowntown LA
MacBook Pro 13-inch 2018 A1989 booted normally after display assembly replacement — Downtown Los Angeles MacBook repair
Booted up clean after the swap — no trace of the crack left.
AT A GLANCE
SYMPTOMStriped display

Colorful vertical lines after a drop

REPAIRFull assembly swap

Glass-only isn't possible — the whole lid is standard

NOTETrue Tone may drop

Auto brightness/color can be lost after a standard swap

01
THE REPAIR RECORD

One impact, and the screen looks like this

A record of why this generation of MacBook Pro display gets replaced whole, not patched.

ModelMacBook Pro 13" (2018, Touch Bar) · Model A1989
SymptomCracked display — the lower half of the screen was covered in colorful vertical lines, with some areas showing no image at all
CauseDrop / impact — internal wiring or cells inside the LCD panel were damaged from the fall
RepairFull display assembly (lid) replacement — a complete unit including glass, LCD, camera, microphone, and Wi-Fi/Bluetooth antenna
Turnaround1–2 hours (same-day if the part is in stock)
Heads upTrue Tone's automatic color adjustment depends on calibration data paired between the original display and the logic board. After this kind of standard replacement, the True Tone option often disappears from System Settings entirely. We flag this to customers before starting the job.
02
WHY NOT JUST THE GLASS

The Retina display comes as one fused piece

MacBook Pro screens built since 2016 use a fundamentally different structure than earlier generations.

REASON 01

A fused panel

The Retina display is a factory-bonded unit — glass, LCD, and backlight fused into one piece. Even a crack in the glass alone means the LCD has to be replaced with it.

REASON 02

Camera, mic, and antenna come with it

The display assembly houses more than the screen — the webcam, microphone, and Wi-Fi/Bluetooth antenna all live inside the lid, so the whole lid is treated as a single part.

REASON 03

Impact reaches the LCD too

Even when only the glass looks cracked, an impact that reaches the LCD panel shows up as colorful vertical lines, discoloration, or dead patches on the display.

03
THE REPAIR PROCESS

Swapping an entire lid

From disconnecting the battery to reassembly and testing — get the order wrong and a part can get damaged.

01
DIAGNOSIS

Check the logic board first

We power the machine on to confirm the logic board and battery are healthy. If an external monitor shows a clean image, the problem is narrowed down to the display itself.

02
DISASSEMBLY

Disconnect the battery, then the cables

The battery is disconnected first to cut power. Then the hinge screws come out and the display cable, camera cable, and antenna cables are carefully disconnected one at a time.

03
NEW ASSEMBLY INSTALL

Reconnect cables, align the hinge

The new display assembly goes in and the cables are reconnected. Getting the hinge alignment and screw torque right is what keeps the lid closing flat instead of twisting.

04
TESTING

Re-verify every function

We power it on and check full-screen brightness, color, the Touch Bar, camera, and microphone before handing it back.

Before Before repair — MacBook Pro A1989 display covered in colorful vertical lines after drop damage
Before — impact damage to the LCD panel filled the lower half of the screen with colorful vertical lines.
After After repair — MacBook Pro A1989 booted normally after the display assembly replacement
After — booted up clean once the display assembly was replaced. No trace of the lines left.
04
THE RESULT

A new screen, everything else untouched

Only the display assembly was swapped, so nothing about the data or settings changes.

Repair complete

Clean, with no lines left

The screen that had been covered in vertical lines is sharp again. The logic board, battery, and keyboard were never touched, so it comes back exactly as it was — just with a new screen.

MacBook Pro 13-inch A1989 display working normally after the repair
Tech's Note. True Tone, introduced on the 2018 MacBook Pro, only works correctly when the display's built-in brightness sensor is paired with calibration data on the logic board. A standard assembly replacement breaks that pairing, and the True Tone toggle often disappears from System Settings entirely. It doesn't affect image quality or usability, but we always flag it ahead of time so it isn't a surprise.
05
FREQUENTLY ASKED

Common questions about MacBook Pro screen repair

If my MacBook Pro screen cracks, can just the glass be replaced?

No. On MacBook Pro models from 2016 onward, the Retina display is a fused unit — glass, LCD, and backlight bonded together — so the full display assembly (the lid) has to be replaced.

Why do colorful vertical lines appear on the screen?

This is the classic symptom of internal wiring or cell damage inside the LCD panel from a drop or impact. The glass can look completely fine while the panel itself is damaged.

Does True Tone still work after the replacement?

After a standard assembly replacement, True Tone is often disabled. That's because the original display's calibration data is paired specifically with the logic board. Screen brightness and color quality themselves aren't significantly affected.

How long does the repair take?

Same-day service in about 1–2 hours is typical when the part is in stock. It can vary by model and parts availability, so it's worth confirming before you come in.

What is the A1989 model?

It's the 13-inch MacBook Pro with Touch Bar released in 2018. You can find the model number stamped on the bottom of the case, or by checking About This Mac.

Is MacBook repair available near Downtown LA?

Yes — our Downtown Los Angeles shop handles MacBook Pro and MacBook Air screens, batteries, keyboards, and board-level repair. Diagnosis is free and we'll walk you through a quote.

A cracked screen doesn't mean a new MacBook

We keep display assemblies in stock, so most repairs are same-day. Free diagnosis at our Downtown LA shop.

Talk to us