In our years serving Johannesburg's northern suburbs, we have seen every variation of this problem—from a simple battery reset to a failed logic board. We're going to walk you through what causes a Mac to refuse turning on, what to expect when you bring it to us, and how much you can realistically budget.
What Actually Happens When Your Mac Won't Turn On
Before you panic, understand that "won't turn on" covers several different scenarios, and they don't all require the same repair.
Some Macs show no signs of life at all: no lights, no sounds, nothing. Others respond to power—you'll hear the fan kick in or see a light flash—but the display stays black. A third group powers on but gets stuck on the Apple logo or a spinning wheel. Each points to different hardware culprits.
We have diagnosed more than 28,000 devices across Johannesburg, and the most frequent cause in Rivonia and surrounding areas is a dead or failing battery, particularly in MacBook models from 2015 to 2019. The second most common issue is a failed power supply (for iMacs and Mac Minis). Third is liquid damage that has corroded the logic board—and with load shedding affecting workshop power stability, we have also seen an uptick in surge damage to power circuits.
The least common but most serious is a logic board failure, which typically requires micro-soldering or component replacement.
How We Diagnose Your Mac in Hyde Park
When you bring your Mac to our workshop, the first step is a proper diagnostic. This costs R599 and takes about 30 minutes. We don't charge for diagnostics if you approve the repair with us on the same day.
Our process starts with visual inspection: we look for signs of physical damage, liquid exposure, or heat damage. We then connect the device to a power supply and listen and watch for any response. A technician will use specialist testing equipment to measure voltage on the power rails and check whether the processor is receiving a boot signal.
This matters because it narrows the problem. If there's voltage but no boot signal, the issue is likely the power management IC or the System Management Controller. If there's no voltage at all, it's probably the power supply, battery, or charging circuit. If we see signs of thermal damage or corrosion, we move to liquid damage assessment.
Most diagnostics confirm the fault within two hours. We then give you a clear repair quote and realistic turnaround.
Repair Costs and Turnaround for Rivonia Residents
Pricing depends entirely on what's broken. Here's what we typically see:
Battery replacement (most common, MacBooks): R1,200 to R2,100 depending on model. Turnaround: same day or next morning.
Power supply replacement (iMacs, Mac Minis): R1,800 to R3,500. Turnaround: 24 hours.
Logic board repair (micro-soldering, component-level work): R2,800 to R6,500. Turnaround: 3 to 5 working days.
[Logic board replacement](/logic-board-repair) (full board swap): R4,200 to R8,900. Turnaround: 2 to 3 days (subject to parts availability).
These prices include labour and a 12-month parts warranty. For customers within Rivonia or Sandton, we offer a free carry-in service—we collect from your home or office, diagnose at our Hyde Park workshop, and return once repaired.
All repairs come with a three-year warranty on labour, meaning if the same component fails within that period due to our workmanship, we repair it at no cost.
Why Your Mac Won't Turn On: The Real Culprits
Battery degradation is the number one reason MacBooks won't power on. Lithium batteries lose capacity over time. By year four or five, the battery can drop to 5% health. If it reaches 0%, the Mac won't even try to boot. The fix is a new battery; the Mac itself is fine.
Power supply failure is common in iMacs and Mac Minis left plugged in during Johannesburg's frequent power cuts. Surge damage to the power supply circuit can disable the entire machine. We replace the power supply, and the device works again.
Liquid damage to the power management area of the logic board can cut power delivery to the processor. This requires cleaning the board, sometimes replacing individual components, and can take longer to diagnose and repair. See our detailed liquid damage guide for more information.
Firmware corruption can lock a Mac in a boot loop or black screen. This is less common than hardware failure but does happen after forced shutdowns or interrupted software updates. We can often recover the machine using Apple Configurator or Direct Mac Recovery mode.
Logic board component failure—such as a failed charging IC, power management chip, or even the processor itself—requires micro-soldering and is more involved. These repairs are less common in Rivonia, but we have the tools and expertise.
Getting Your Mac Repaired: Next Steps
Contact us online or book online at zasupport.com/book for an appointment at our Hyde Park workshop. We're open Monday to Friday, 8:30 AM to 5:00 PM, and Saturday mornings by appointment.
If you'd prefer to start a conversation first, WhatsApp us on 064 529 5863. Tell us your device model, what you've already tried, and whether there are any signs of physical damage or liquid exposure. This helps us prepare and set realistic expectations.
We also offer a remote support option if you're unsure whether a repair is worth your time. Our senior technician can talk you through troubleshooting steps over video call.
What to Expect When You Visit
Bring your Mac, power cable, and any accessories you use with it. We'll ask for your contact details and what you've noticed—whether the device has been dropped, exposed to liquid, or has a history of overheating.
The diagnostic takes 30 minutes to one hour. Once we've confirmed the fault, we'll provide a written quote and explain the repair process. If you approve, most simple repairs (battery, power supply) are completed within 24 hours. More complex repairs may take longer, and we'll keep you updated via WhatsApp or email.
We accept payment via card, bank transfer, or cash. We also offer a 12-month payment plan for repairs over R4,000 through Fingercube, with interest starting at 0% for the first three months.
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Frequently Asked Questions
Q: How do I know if it's the battery or the power supply?
Try a different power cable if you have one. If the Mac still doesn't respond after 15 minutes of charging with a different cable, the issue is likely internal—either the battery (on MacBooks) or the charging circuit. We can confirm with our diagnostic. If it's the battery on a 2015–2017 MacBook, you're looking at R1,200 to R1,600 and a same-day repair.
Q: Will my files still be there if the logic board fails?
In almost all cases, yes. The storage drive (SSD) is separate from the logic board. Even if the logic board fails completely, your data is safe. We retrieve it and can transfer it to a new device if needed. Logic board repairs start at R2,800, but file recovery is separate and typically costs R800 to R1,500 depending on what needs to be recovered.
Q: How long do repairs take if I need a part ordered?
Battery and power supply replacements usually don't require ordering—we stock these for most models. Logic board replacements or specific components may need ordering from Cape Town or Durban, adding 2 to 3 days. We'll give you an accurate timeline once we've diagnosed the issue.
Q: Can I try fixing it myself?
We don't recommend it. Opening a modern Mac requires specialist tools, and one mistake—a stripped screw, a bent connector—can cost more to fix than the original repair. That said, if you want to try a safe reset first, hold the power button for 10 seconds, wait 30 seconds, then try again. For older Macs, a PRAM reset (power on, hold Command + Option + P + R until you hear the startup sound twice) can sometimes help.
Q: Do you offer a warranty on repairs?
Yes. All repairs include a 12-month parts warranty and a three-year labour warranty. If a repaired component fails within 12 months due to defect, we replace it free. If the repair stops working within three years because of our workmanship, we fix it at no cost.
Q: What if I'm in Rivonia and need a quick turnaround?
We prioritise diagnostic appointments for Rivonia residents and offer free collection and delivery within Johannesburg's northern suburbs for repairs. Battery and power supply repairs are usually completed same-day if you drop in before 11:00 AM on a weekday. WhatsApp us on 064 529 5863 and we can often slot you in within hours.
