Your Mac mini will not start up: you press the power button and nothing happens, or the light comes on but your screen stays black. Because a Mac mini has no screen of its own, the problem may also be in the cable, the adapter or the display. This article explains step by step how to find out what is to blame, for the Mac mini with an Apple chip and for older Intel models.
Blue Apple repairs Mac minis and MacBooks in Amsterdam. Start with the steps below.
Step 1: does the Mac mini get power?
- The power supply is inside the Mac mini. Check that the power cable at the back is firmly in and try another socket, without a power strip.
- Look at the white light on the front. If it comes on after turning on, the Mac mini gets power.
- Mac mini with M4 (2024 and later): the power button is on the underside, at the back left. Press it briefly.
Step 2: light on, but no picture
Then the Mac mini is probably running, but the picture does not reach your display. Check:
- Is the display on and set to the right input (HDMI 1, HDMI 2, USB-C)?
- Try another cable, and connect it directly without an adapter or hub.
- Try the other port: HDMI or a Thunderbolt/USB-C port.
- Try another display or a TV.
Also see connecting to a monitor or TV.
Step 3: force restart
Hold the power button for ten seconds until the light goes out. Unplug the power cable, wait fifteen seconds, plug it back in, wait five seconds and turn the Mac mini on. On an Intel Mac mini this is also the SMC reset.
Step 4: keyboard and mouse
A Mac mini without a paired keyboard or mouse sometimes seems unresponsive. If in doubt, connect a wired keyboard. You pair a wireless Apple keyboard by connecting it with a cable.
Step 5: stuck during startup
If you see the Apple logo but it gets no further, try:
- safe mode: see starting in safe mode;
- Recovery mode, First Aid and reinstalling macOS: see opening Recovery mode.
On a Mac mini with an Apple chip, hold the power button until you see the startup options.
The screen stays black at startup options
Some displays, especially 4K displays through an adapter, only show a picture once macOS has loaded. For Recovery mode, preferably use a display over HDMI or a directly connected USB-C display.
When is it hardware?
- The light stays off, even on another socket.
- The Mac mini turns on and immediately off again.
- No picture on any display or cable, while the light is on.
- It started after a power cut, a thunderstorm or moisture.
Then the internal power supply, logic board or storage may be faulty. On a Mac mini with an Apple chip a firmware problem can sometimes be solved by "reviving" it from another Mac.
What we do at Blue Apple in Amsterdam
We test the power supply, the video ports and the logic board, and look at what can be done with your data. You hear beforehand what it costs. Also read our Mac mini repair guide and see our page about Mac mini repair.
Frequently asked questions
Where is the power button on the new Mac mini?
On the Mac mini with M4, on the underside at the back left.
The light is on but I see nothing. Is it broken?
Not necessarily. Often the cable, the adapter or the display input is to blame.
Will I lose my files?
Usually not. With a faulty logic board and fixed storage it can be harder; so back up regularly.
