This guide explains what causes no-power failures, what you can expect to pay, how long repairs take, and why ZA Support's approach differs from typical high-street technicians.
What Causes No-Power Issues in Apple Devices?
Power failure isn't always what it seems. When a MacBook, iPhone, or iPad won't turn on, the culprit could be anything from a depleted battery to a damaged logic board—and diagnosis matters more than guessing.
In our Hyde Park workshop, we've repaired more than 18,000 Apple devices over the past five years, and no-power cases account for roughly 12% of our workload. The most common causes we encounter are:
Battery degradation. Lithium batteries age. After 500–1,000 charge cycles, capacity drops. If your device is over three years old and won't power on, a faulty battery is often the first suspect. On a MacBook Air, we typically see this around the four- to five-year mark.
Liquid damage. Water, tea, coffee, or spilled drinks seep into circuits and corrode components. Even if the device seems dry, corrosion can take weeks to cause failure. We've treated devices months after the initial spill.
Failed power management IC (PMU). This chip controls power distribution. If it fails, nothing happens when you press the power button—no lights, no fans, no response. This requires microsoldering expertise.
Faulty charging port or cable. A device with zero charge won't power on. Before assuming board-level damage, we test multiple chargers and cables.
Worn logic board connectors. Repeated charging cycles stress the connector. Poor contact means no power delivery.
Each cause demands different repair work and carries different costs. This is why a proper R599 diagnostic assessment saves money and frustration later.
Diagnosing No-Power Problems: Our Process
Diagnosis at ZA Support starts with observation, not assumptions. We don't immediately assume your MacBook needs a logic board repair—that's how unnecessary costs happen.
Here's our approach:
Visual inspection. We look for signs of liquid damage, corrosion around the charging port, physical damage, or swelling (a telltale sign of battery failure). A swollen battery is a safety hazard and must be removed immediately.
Charging test. We connect your device to a known-good charger and wait 20–30 minutes. Some devices are simply deeply discharged. Others show no response.
Power button response. Does the device respond to the power button at all? Any LED indicator, fan noise, or screen flicker? This tells us whether the issue is battery, charging, or logic-board level.
Thermal test. We feel whether the device generates heat near the charger port. Heat means power is reaching internal circuits—good sign. No warmth suggests a deeper fault.
Component-level diagnostics. If the above tests are inconclusive, we use specialist equipment to measure voltage at key points on the logic board. This tells us whether the PMU is alive or dead.
For Melrose clients, this assessment typically takes 2–3 hours. Most repairs start the same day if parts are in stock.
Costs and Turnaround Times
Transparency is crucial. Here's what no-power repairs typically cost in Johannesburg, June 2026:
Battery replacement. R1,200–R1,800 depending on device type (MacBook, iPad, or iPhone). Turnaround: 1 day.
Charging port repair or replacement. R899–R1,599. Turnaround: 1–2 days.
Liquid damage assessment and cleaning. R599–R2,499 (assessment included in this range). If components must be replaced, costs climb. Turnaround: 2–5 days depending on extent.
Logic board repair (microsoldering). R2,999–R5,499 for PMU replacement or board-level rework. Turnaround: 5–10 days. This is specialist work; not all technicians can perform it safely.
Full logic board replacement. R4,500–R8,999 depending on device. Turnaround: 3–5 days once parts arrive.
We offer a 3-year warranty on all power repairs, including battery replacements. If the same issue recurs within that window, we repair or replace it at no charge. This warranty is unusual in Johannesburg—most shops offer 90 days. We stand behind our work because our technicians are trained to Apple's standards.
Load shedding in Johannesburg means many Melrose residents keep devices unplugged for safety. If your device has sat idle for weeks, a simple charge-and-restart often works. But if it truly won't respond, our workshop can rule out the easy fixes within hours.
When to Suspect Logic Board Damage
Logic board faults are expensive, so it's worth knowing the warning signs before you bring your device in.
No response to charger or power button after 30 minutes of charging. The device shows zero signs of life. No LED, no vibration, no warmth.
Recent liquid exposure. If you spilled liquid and the device worked for a few hours or days, then died, corrosion has likely spread to power-critical components.
Physical damage or drop. A hard fall can crack the logic board or unseat components.
Intermittent power cycling. The device powers on briefly, then off, repeatedly. This is often PMU failure.
Burning smell near the charging port. Stop using it immediately. A short circuit inside is a fire risk.
If any of these apply, logic board repair is likely necessary. We've handled more than 6,000 such cases in Hyde Park and can usually determine repairability within 24 hours. Some boards are beyond economic repair—in which case we'll tell you honestly.
For detailed guidance on liquid damage specifically, see our liquid damage repair guide.
Why Choose ZA Support for No-Power Repairs in Melrose?
We're based in Hyde Park, minutes from Melrose. We're not a franchise. Every technician holds Apple certification or equivalent specialist training. We don't replace parts unnecessarily; we diagnose first, quote second, repair third.
We also handle complex board-level repairs—microsoldering, component replacement—that most high-street shops refer elsewhere (adding cost and delay). Our workshop has the equipment and expertise to fix them in-house.
For more information on our workshop capabilities and current availability, book online at zasupport.com/book or WhatsApp us on 064 529 5863.
If your device has suffered liquid damage specifically, our liquid damage restoration service is a good next step. And if you'd like to understand the logic board better, our logic board repair article covers what goes wrong and how we fix it.
How Apple Addresses Power Issues
Apple's official guidance (per Apple Support) recommends forced restart procedures for unresponsive devices. Depending on your model, this might be a key combination or a combination of button presses held for 10–15 seconds. If the device doesn't respond to a forced restart after a full charge, Apple advises visiting an Authorized Service Provider—which is where ZA Support comes in.
Frequently Asked Questions
Q: My MacBook shows no signs of power. Is it definitely broken?
Not necessarily. Deeply discharged devices can take 30–60 minutes of charging before any response. Try charging with a known-good cable and adapter for at least an hour. If you see no LED indicator, no warmth, and no fan noise after that time, a fault is likely. Bring it to us for a R599 diagnostic; we'll isolate the problem in 2–3 hours.
Q: How much does a no-power repair typically cost?
It depends on the fault. Battery replacement is R1,200–R1,800. Charging port repair is R899–R1,599. Logic board work ranges from R2,999–R5,499. Our R599 assessment includes a detailed quote before any repair begins, so you'll never face a surprise bill.
Q: Can I still use my device if it won't power on?
No. A device that won't power on cannot be safely used. If liquid is involved, do not attempt to charge it; this can cause a short circuit. Bring it in immediately.
Q: Do you offer a warranty on power repairs?
Yes. We provide a 3-year warranty on all power repairs, including battery replacements. If the fault recurs within three years, we repair it at no charge.
Q: How long does a no-power repair typically take?
Simple cases (battery, charging port) take 1–2 days. Liquid damage cleaning takes 2–5 days. Logic board microsoldering takes 5–10 days. We'll give you an exact timeline after diagnosis.
Q: What if my device can't be repaired?
We'll be honest about repairability. If repair costs exceed the device's replacement cost, we'll tell you. Some boards are too damaged. In rare cases, we can recover your data before decommissioning the device—ask us about this option when you visit.
