In our Hyde Park Johannesburg workshop, we have already seen a steady stream of M4 owners walking in with cracked displays, most often after a desk-height drop onto tile or a pressure crack from a stuffed backpack. The conversation usually starts the same way: the client has called Apple, been quoted somewhere north of R22,000, and is now wondering whether the iPad is worth fixing at all. That is the question this post answers.
What Tandem OLED Actually Is
Most iPad displays before the M4 used LCD with an LED backlight. The 2018 to 2022 Pro models added ProMotion 120Hz refresh, and the 12.9-inch 2021/2022 Pro briefly used mini-LED. All of those panels share a common trait: the glass, the touch digitiser, and the display panel were either separate or only partially laminated, which gave technicians some room to work with.
The M4 ditches all of that. Apple stacks two OLED panels on top of each other, drives them in tandem to push peak brightness to 1,600 nits HDR, and laminates the whole sandwich — OLED stack, touch digitiser, cover glass — into a single assembly. The result is a display that is thinner, brighter, and far more demanding to replace. If you want the full technical breakdown, iFixit's M4 teardown is worth a read.
Why a Cracked M4 Screen Cannot Be Polished or Reglassed
Clients frequently ask us whether we can just replace the top glass and leave the OLED in place. On older iPads, with the right tools and a steady hand, that was sometimes viable. On the M4, it is not. Because the glass, digitiser, and tandem OLED are bonded as one optical stack, separating them cleanly without damaging the OLED layer underneath is — in practice — a coin toss with very expensive consequences.
We tried it. Early in the M4's life, before the aftermarket caught up, we attempted glass-only separations on two units where the OLED itself was visibly intact. Both ended with micro-fractures in the OLED layer that produced dead lines within a week. We now quote full assembly replacement only, because it is the only repair we will warranty.
What the Repair Costs in Johannesburg
Pricing on the M4 is genuinely better than people expect once they have seen the Apple swap quote. In our workshop:
That is against an Apple out-of-warranty service fee that sits north of R22,000 for the 13-inch. The gap is not because we are cutting corners — it is because we source the assembly, do the labour in-house, and do not need to factor in a global logistics chain. Every M4 screen repair we complete comes with up to 3-year warranty on the assembly and our workmanship, which is longer than Apple's own out-of-warranty cover.
Before any work begins, we run a from R599 assessment. That covers diagnostics on the touch layer, the Face ID array, the Apple Pencil hover sensors (which sit behind the OLED stack and are easy to disturb), and the logic board. If your iPad took a hard knock, the screen is rarely the only casualty — we have seen drops that cracked the glass and also fractured solder joints near the SoC, requiring logic board repair before the new screen would even initialise.
Turnaround Time and Why It Varies
A straightforward M4 screen replacement, with the part in stock, takes us between 4 and 24 hours from drop-off to collection. The variation depends on three things:
Parts inventory. We hold both 11-inch and 13-inch assemblies in Hyde Park, but the 13-inch in the nano-texture variant is harder to source locally and occasionally adds 2 to 3 days while we get one in.
Face ID recalibration. The TrueDepth camera array on the M4 sits in the landscape edge — a first for iPad — and its alignment relative to the new display has to be verified after assembly. We use Apple's diagnostic tools to confirm Face ID enrolment still works post-repair. Skipping this step is how non-specialist shops end up with clients whose Face ID stops working a week later.
Pencil hover sensors. The Apple Pencil Pro relies on a magnetometer array and inductive coils behind the panel. Reseating these correctly takes time and a calibrated touch.
Across our team we have completed well over 15,000 Apple device repairs since opening, and the M4 sits at the more demanding end of that catalogue. We do not rush these.
Drop Damage Versus Pressure Cracks
Two failure patterns dominate what we see on the M4:
Desk-height drops. The M4 is thinner than any iPad before it — 5.1mm on the 13-inch — and that thinness means less structural buffer. A drop from 80cm onto tile or polished concrete almost always cracks the cover glass, and roughly two-thirds of those drops also damage the OLED stack underneath, producing black blooms or vertical lines.
Pressure cracks in bags. This is the silent killer. An M4 wedged into a laptop sleeve next to a MacBook charger or a hard-edged notebook can develop a spiderweb crack across the OLED with no visible impact event. The owner pulls it out of the bag and the screen is gone. We see this two or three times a month at our Hyde Park workbench.
If your iPad was also exposed to liquid — coffee, rain through a leaking bag, a knocked-over water bottle — flag this when you bring it in. Liquid behind a damaged OLED stack is a different repair entirely, and our liquid damage recovery process needs to run before any screen work.
Load Shedding and Why It Matters for Repairs
This is a Johannesburg-specific concern that Apple's official channels never mention. Our workshop runs on inverter and UPS backup, which is non-negotiable for OLED bonding work — the lamination press and the calibration software cannot tolerate a power cut mid-cycle. If you have been quoted an M4 repair by a shop without proper backup power, ask how they handle stage 4 load shedding. A half-bonded OLED assembly is a write-off.
We have completed M4 screen repairs through stage 6 without a single botched job, because the workshop is built for it.
Before You Bring It In
A few practical points:
For anything urgent, WhatsApp us on 064 529 5863 with a photo of the damage and we will give you a same-day estimate. You can also book online at zasupport.com/book or contact us directly for a quote. Apple's official support documentation is at support.apple.com if you want to cross-check anything we have written here.
Frequently Asked Questions
Q: Can you repair just the cracked glass on my iPad Pro M4?
No, and we are upfront about this. The glass, touch digitiser, and tandem OLED panel are laminated together as a single assembly. Attempting to separate them almost always damages the OLED stack. We replace the full assembly, which is why our pricing starts at R6,999 rather than the R2,500 you might expect for older iPad glass-only repairs.
Q: How does your price compare to Apple's repair quote?
Apple's out-of-warranty service for an M4 screen typically runs from R22,000 upward, particularly for the 13-inch. Our equivalent repair sits between R6,999 and R9,999 depending on size and finish, and includes up to 3-year warranty on parts and workmanship.
Q: Will Face ID still work after the screen replacement?
Yes, when the repair is done correctly. The TrueDepth array on the M4 is in the landscape edge and needs to be carefully transferred and recalibrated against the new display. We verify Face ID enrolment as part of our QA before handing the device back.
Q: How long does the repair take?
Most M4 screen replacements are completed within 4 to 24 hours of drop-off, assuming the part is in stock. The 13-inch nano-texture variant occasionally takes 2 to 3 days extra if we need to source the specific assembly.
Q: Is the replacement screen an original Apple panel?
We use OEM-grade tandem OLED assemblies that match Apple's specifications for brightness, colour accuracy, and ProMotion 120Hz refresh. They are not pulled from official Apple service channels — those parts are not sold to third parties — but they are manufactured to the same standard, which is why we can offer the warranty length we do.
Q: What if there is more damage than just the screen?
This is common with drop damage. Our from R599 assessment includes a full diagnostic on the logic board, battery, cameras, and ports. If we find additional issues, we quote them separately before doing any work — you decide whether to proceed. We never start repairs you have not approved.
