Black screen, no response, no startup chime? Before you fear the worst, most “Macs that won’t turn on” come back to life with a few simple checks — often just a charging issue. Here’s what to do, step by step, from the free fix to the workshop.
A Mac that “won’t turn on” most often has a power problem — charger, cable, connector or flat battery — well before it’s a serious fault. The right reflex: check the charge, tell a black screen apart from a Mac that’s truly off, then try a reset sequence. If nothing works, it’s a workshop diagnosis — often the logic board. Always start with the simplest and cheapest.
Don’t skip a step: each one rules out a common cause before you move on.
Plug in the Mac and leave it for 15 minutes. Try a different outlet, check that the cable isn’t cut, and that the connector (MagSafe or USB-C) is clean. A small LED lighting up on the MagSafe connector is a good sign. A non-official or worn charger is a very common cause.
Tip: a borrowed charger that works = the problem was with yours.In complete darkness, press the power button and listen / feel: fan noise, warmth, a startup chime? Shine a flashlight on the screen: if you can make out the desktop, the Mac is working but the backlight or the display is at fault (not the power-on).
Worth reading: in that case, see our guide “cracked screen: repair or replace”.On an Apple Silicon Mac (M1/M2/M3…), shut down completely, wait 30 seconds, then power back on: simply cutting the power resets the controller. On an Intel Mac, resetting the SMC (System Management Controller) clears up many black-screen cases. Keep the Mac plugged in during the operation.
A deeply discharged battery may need several minutes before the Mac responds. A battery at the end of its life (or swollen) can also prevent startup: if the Mac only works while plugged in, the battery is probably the culprit — a part that can be replaced.
Worth reading: our guide “swollen MacBook battery”.If after all this the Mac stays completely inert — especially after a knock, a liquid spill or a burnt smell — the fault is probably on the logic board (power circuit, fuse). This is precisely the realm of micro-soldering, and often repairable without replacing the whole board.
Our workshop: logic board repair and micro-soldering in Paris.Liquid + current = corrosion and short circuit. The right moves, right away:
Many cases are solved with a simple part, in stock at Place du Mac:
When the Mac stays inert, our Paris workshop identifies the real cause:
“Black screen and no sound: the logic board is dead.”
Not so fast. In a large share of cases, it’s a failing charger, a flat battery or simply a need for a reset. The logic board only comes last, after the simple causes have been ruled out — and even then, micro-soldering often lets us repair it rather than replace it.
These three free checks solve most “Macs that won’t turn on”. If yours holds out, a power part or a workshop diagnosis will do the rest — and a liquid spill can be treated fast, without powering back on.
Plug it into a charger that works, on a different outlet, and leave it for 15 minutes. Check the connector LED and the state of the cable. Charging is by far the number-one cause of a Mac that seems “dead”.
It means the Mac turns on, but the display is at fault (backlight or screen). Shine a flashlight on the screen: if you can make out an image, it’s a screen problem, not a power-on one.
On an Apple Silicon Mac (M1/M2/M3), shut down completely, wait 30 seconds, then power back on. On an Intel Mac, an SMC (power controller) reset clears up many cases. Keep the Mac plugged in during the operation.
Most likely. A battery at the end of its life or swollen can prevent startup on battery alone. It’s a part that can be replaced — at Place du Mac, new batteries from €30.
Yes, if you don’t power it back on and don’t recharge it. Shut it down, let it drain, and get it to a workshop quickly for a logic board cleaning. The faster the intervention, the better the chances of recovery — including data.
The diagnosis identifies the real fault before you spend. Check our repair pricing page, or contact us describing the symptoms (and any recent knock or liquid): we’ll point you in the right direction.
Place du Mac guide — tested power parts, new batteries with a 2-year warranty, repair and micro-soldering workshop at 51 rue du Faubourg Poissonnière, Paris 9th. Reset operations are risk-free; in case of liquid, don’t insist and call in a professional. Apple, Mac and MacBook are trademarks of Apple Inc.; Place du Mac is an independent repairer, not affiliated with Apple Inc.
