Fix;If Your Imac Won’t Boot Up

 Imac Won’t Boot Up.What if your iMac won’t boot? If you want to try to restore the functionality of your device on your own, there are several recommendations that will help you solve the problem.If your Imac Won’t Boot Up or does not respond to the power button , then the following reasons are possible:

  • the video card or motherboard is out of order;
  • the matrix backlight or the matrix itself burned out;
  • defective hard drive or RAM;
  • problems with the power supply.

Fix;If Your Imac Won't Boot Up

Fix;If Your Imac Won’t Boot Up

All-in-one iMacs are reliable enough, but they also fail. Let’s take a look at the top reasons your iMac won’t turn on.

  • iMac won’t boot and freezes on white screen

When the imac is white screen, you need to check any external devices connected to the aimak or the presence of a disc in the DVD-ROM. Before booting the system, EFI detects the presence of a bootable area on all removable media and, in case of various failures, may prevent the Mac OS from booting.

Bad hard drive or RAM are common problems causing your iMac to behave like this ( white screen won’t load ). In the first case, try booting from an external device (for example, from a system recovery disc or a bootable USB flash drive). To do this, you need to hold down and hold the ALT key immediately after turning on your iMac.

As for the RAM, the problem can be hidden both in the module itself and in the slot of one of the RAM bars. Typically, two RAM modules are installed in the aimak as standard. Therefore, you can take out one of them and try to turn on the device. If your iMac still doesn’t work, try different variations of slot1-slot2 – memory module 1 – memory module 2. 

iMac won’t boot and hang with black screen

On imac, a black screen  indicates a more serious problem than those described above. If the aimak does not load the system, then there may be a burned-out video card, a faulty motherboard, or a burned-out matrix backlight (or the matrix itself). In this case, we can advise you to contact the service center for further diagnostics.

iMac turns on but won’t boot and you see a black screen?  Or do you see the screen (the color is dimmer), as if the aimak is off? You need to take a good look, because if the aimag does not react and simply does not turn on, then this indicates other reasons for the breakdown.

How to save data from a Mac that won’t boot macOS

Fix;If Your Imac Won't Boot Up

If you do not care about the data stored on the hard disk, then feel free to skip this step and proceed to the next step.If you are not using the most useful Time Machine feature, then before reinstalling macOS, you need to take care of transferring data from the disk. Developers from Cupertino have come up with a special External Disk Mode ( detailed ), with which you can access data stored on a Mac’s hard drive to copy it to another Mac. The disadvantage of this method is obvious – the need for a second Mac and a Thunderbolt cable.

To activate Target Disk Mode:

1 . Connect both Macs using a Thunderbolt cable.

2 . Turn off the problematic Mac and turn on the working Mac.

3 . Start an inoperative Mac with the T button  pressed  and hold it until the Thunderbolt icon appears on the display with a blue background, which indicates that the Mac has successfully started up in Target Disk Mode.

by Abdullah Sam
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