Usually, the 5101F error code occurs when Mac users try to open Internet Recovery. If your computer’s startup disk is corrupt or unreadable, launching Internet Recovery may be the only way to restore your Mac. Let’s see how you can fix 5101F error and restore your Mac.
How to Fix Error 5101F on Mac
Reinstall the original operating system
An outdated or incompatible boot ROM version is a common trigger for this error. To check the version of your boot ROM, click the button Apple logo, select About this Mac, click on System report then select Equipment.
Your Mac may be running on an older version of the boot ROM or BIOS. However, it will not boot from the recovery partition if your version of the boot ROM is outdated. So the solution is to reinstall the initial version of macOS, then update your operating system and BIOS.
- hurry Shift + Option + Command + R to revert to the original macOS version of your computer. This is the version of the operating system installed at the factory. Reinstalling the older version of macOS typically takes around 30 minutes.
- Then go to the App Store and upgrade to the latest version of macOS.
- To note: The update will take longer than usual. Sometimes it can take up to two or three hours depending on your hardware configuration.
- After the update is complete, check your boot ROM version to make sure it has been updated successfully. Check if this method fixed the error.
As a reminder, the Command + Option + R The command installs the latest version of macOS available. On the other hand, the Shift + Option + Command + R The key combination reinstalls the version of the operating system that originally came with your Mac.
You can also use the Command + Option + R command to correct error 5101F. A number of users have confirmed that this solution works for them. Maybe this will work for you too.
Use Carbon Copy Cloner
Another way to work around the 5101F error is to use the Carbon Copy Cloner. This tool preserves your operating system files and other data on a bootable volume. If your Mac is unresponsive, you can use Backup to start your computer.
- First, you need to find another Mac running the same version of macOS as the problematic Mac.
- Use Carbon Copy Cloner to clone this Mac to your problematic device using Target Disk Mode. For more information on using Target Disk Mode, see Transfer Files Between Two Mac Computers Using Target Disk Mode.
- To note: If the problematic Mac is running Mojave, the drive must be formatted as APFS (Apple File System).
- Complete the cloning process and see if you can use your Mac and upgrade to the latest version of macOS.
Disable Wi-Fi Router Security
As many of you already know, Mac computers are very picky about what kind of Wi-Fi security you use. One of the reasons you get the 5101F error is because your Mac doesn’t really like your Wi-Fi security setup. So, temporarily turn off the security on your wireless router and check if you can restore your Mac. You can also use a cable connection if possible.
Resetting NVRAM (Non-Volatile Random Access Memory) can help you get rid of 5101F error.
- Shut down your Mac computer.
- Then press the Start button to start the device.
- Immediately hold the Command + Option + P + R keys. Do this while your Mac is booting up.
- Hold down all four keys for 20 or 30 seconds. Then let your computer turn on normally. By the way, if your Mac is making a startup sound, you can release the keys after the second chime.
Outdated boot ROM versions, corrupt NVRAM issues, and incompatible router security settings can sometimes trigger error code 5101F on your Mac. To resolve this issue, reinstall the macOS version that came with your Mac, reset NVRAM, or use a cable connection. We hope you have successfully fixed this error with the help of this guide. Let us know which solution worked for you.