How To Solve Mac Error Code 5101F?

Mac Error Code 5101F


The error code 5101F is an installation error caused by an unstable Internet connection. This error usually occurs when users tend to use the Internet Recovery mode to reinstall the macOS because the files are downloaded from the official Apple server to your PC. Hence, a stable and fast network connection is required. Depending on the macOS version you reinstall, you need to download at least 10 to 20 GB of data, and it might take up to a few hours to complete the download process. In some cases, the error might also occur when the computer’s startup disk gets corrupted. Here we shall discuss the procedure and steps to fix the Mac error code 5101F.


If you haven’t updated your Mac OS for a long duration, then there are high chances for the occurrence of error code 5101F on your Mac computer. An outdated or incompatible Boot ROM version can be one of the major reasons for this error.

  • Turn on your Mac computer and tap on the Apple icon.
  • In the drop-down menu, select About This Mac.
  • Click on System Report followed by clicking on Hardware to know if something is wrong with your hardware configuration.
  • Press Shift + Option + Command + R to revert back your computer to its original macOS version.
  • Once the reinstallation process is completed and your Mac returns to its earlier version of macOS, go to the App Store.
  • Here, you need to upgrade your Mac with the latest macOS available.
  • Depending on the hardware configuration of your Mac, the update might take time.
  • Wait patiently until the update gets over.
  • Once done, check your Boot ROM version.
  • Now check whether the Mac error code 5101F is gone.


Mac computers are very much peculiar when it comes to Wi-Fi that you are using to access your Mac system. This could be another reason why you are getting the error code 5101F on your Mac.

  • If you think that your Internet is unstable, then you need to try out some other network that has a good connection speed.
  • In another way, you can try to move your Mac near the modem during the installation to ensure that you receive the best Wi-Fi signals throughout the process.
  • However, if possible, you can use a cable connection to access the Internet.


NVRAM is a non-volatile RAM, and it stores certain information about various aspects of macOS, including speaker volume, screen resolution, startup disk selection, etc. When the macOS installer gets corrupted, the NVRAM also gets corrupted and causes the error 5101F on your device. In that case, resetting the NVRAM is the only solution for Mac Error Code 5101f. To do so, follow the below steps.

  • Shut down your Mac computer.
  • Firmly press the Power button once to boot up the device.
  • When you hear the startup chime, press and hold the Option + Command + P + R keys.
  • Keep holding the keys for about a few seconds until you hear the startup chime for the second time.
  • This step will eventually reset the NVRAM and enable you to restart the Internet Recovery process.


If resetting the NVRAM or using a different network connection has not cleared the error code, then follow the below steps. You need to install a clean copy of the Mac operating system. Keep in mind that this process will erase all your data, settings, applications, preferences, etc. So, before proceeding, ensure that you have backed up all the essential data on another device to clear Mac Error Code 5101f.

  • Turn on your Mac by pressing the Option + Command + R keys.
  • Firmly hold the keys unless and until the Apple logo appears on your screen.
  • Once the macOS utility window opens, click Disk Utility to reformat your hard drive and other internal hard drives.
  • Choose the drive and click Erase.
  • In the Format menu, choose Mac OS Extended > APFS.
  • Type the new name for your hard drive, and click on the Erase button.
  • Once the hard drive is completely wiped out, go to the Recovery menu and choose Reinstall macOS.
  • Follow the on-screen instructions carefully to install a fresh copy of the operating system on your Mac device.

So, these are the solutions you can try while fixing the Mac error code 5101F on your Mac computer. Hope you find our content beneficial and knowledgeable.


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