Dallas, Texas Apple iMac Service Troubleshoot by Apple Certified Technician

 You have a Mac, it is not turning on and it is having a boot loop issue bricked, or other, we can help you fix it. First, check to see if the problem is with your Mac's hardware or software. If you're not sure how to do this, you can check with the technicians,


If the problem is with your Mac's hardware, there are a few things you can try to fix the issue. One is to reset the PRAM or NVRAM on your Mac. This can help to fix some issues with your Mac's startup process.


Common issues are:


  1. Black screen, black or grey screen Flashing question mark, Problems with Wi-Fi Etcetera

    There are a few things you can do to troubleshoot these startup issues on your Mac.

    First, check to see if the problem is with your Mac's hardware or software. If you're not sure how to do this, you can check Apple's support site for more information.

    If the problem is with your Mac's hardware, there are a few things you can try to fix the issue. One is to reset the PRAM or NVRAM on your Mac. This can help to fix some issues with your Mac's startup process.

    Another thing you can try is resetting the SMC on your Mac. This can help to fix issues with your Mac's power, batteries, and fans.

    If the problem is with your Mac's software, there are a few things you can try as well. One is to use the Safe Mode feature on your Mac. This can help to isolate any software-related issues that might be causing your Mac to have problems starting up.

    Another thing you can try is to use the Recovery Mode feature on your Mac. This can help to fix any issues with your Mac's software that

Before proceeding to troubleshoot, ensure that the iMac is up-to-date with all available macOS updates.

If you're using an external display, disconnect it and plug in an external keyboard.

Try resetting your SMC, NVRAM, and PRAM.



Step 1: : Shut down your iMac by holding down the power button on the front of the device. Wait a couple of seconds and then press the power button again to turn on your iMac.

Step 2: : Press Command + Option + Control + Power Button simultaneously. After around 10 seconds you should hear a startup chime.

Step 3: : Release all keys. When you hear another startup chime, release Command + Option + Control first followed by releasing Power Button after another few seconds.



 2. Flashing power LED/ Audio warning

Please check the RAM if it is giving the beep sound. You are running the application and they are crashing or your computer is lagging, It could be due to inadequate RAM in your iMac. Your iMac usually comes with 8 Gb of RAM and it can handle a certain number of applications at the same time, and it crashed or lags if it does not find the required amount of RAM.


  1. Outdated Operating system

Make sure to update your operating system on your Mac to the latest one. One of the most frustrating things about using an aging Mac is how slow it can become. Over time, as new updates are released for the Mac operating system, your computer can start to feel sluggish. This is due in part to the older software not being able to take advantage of the newer system improvements. In addition, your hard drive can fill up with old files and applications that you no longer use, leading to even more slowdown.


If you're stuck with an old Mac, there are a few things you can do to try and speed it up. First, make sure you're running the latest version of the Mac operating system. Next, clean out your hard drive by deleting old files and unused applications. 



  1. Hard drive issue


The hard drive is the most common issue for the iMac pre-2018. They have a spinning disk and for out of the part they get old and slow down. The hard drive stores all of the computer's data and is responsible for holding onto that data. 

 

But how does the hard drive work? 

The hard drive is made up of a spinning disk, called a platter, that is coated with a magnetic material. The platter is divided into tracks, and each track is divided into sectors. The hard drive reads and writes data to the sectors.

The hard drive has a read/write head, which is mounted on an arm. The read/write head floats on a cushion of air above the platter. As the platter spins, the read/write head moves across the tracks.

When the hard drive needs to read or write data, the read/write head moves to the track that contains the data. The head then reads or writes the data to the sectors on the track.


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